Tuesday Titles

Program overview

MEDIA EMBARGO NOTICE: All abstracts are embargoed until the time of presentation at the AAS meeting. "Time of presentation" means the time at which the Oral or Display paper session is scheduled to begin. Please consult our Press Officer for further information.


Session 39. Hale Prize Lecture

Invited, Tuesday, 8:30am - 9:20am, Ballroom I (Tucson Convention Center)

39.01 Helioseismology: A Window into the Sun
D. Gough (University of Cambridge)

Session 40. Numerical Techniques and Models

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

40.01 On the Thermal Structure of Steady Free Jets in the Non-adiabatic States
M. Kondo (SAO)
40.02 Three-dimensional Simulations of Extragalactic Jets Crossing ISM/ICM Interfaces
P. J. Wiita, J. S. Hooda and K. Parmalee (GSU)
40.03 Dynamics, Shielding and Line Formation in Accretion Disk Winds from Active Galactic Nuclei
N. Murray, J. Chiang, S. A. Grossman (CITA) and G. M. Voit (Johns Hopkins Univ.)
40.04 Self-Consistent Models for Radiation-Dominated Shocks with Sources
P. A. Becker (George Mason University)
40.05 A Test for Nonlinearity in Time Series : Application to 3C 345
A. D. Nair and A. G. Smith (Astronomy Dept., Univ. of Florida)
40.06 First Results From TITAN
M. Gehmeyr and D. Mihalas (LCA, UIUC/NCSA)
40.07 The Tully-Fisher Relation and Redshift-Space Artifacts
E. A. Praton and L. Flesch (Beloit College)
40.08 Applications of a Wavelet-based Filtering and Deconvolution Technique
S. E. Vance (Andrews University) and J. E. Grindlay (CfA)

Session 41. Catalogs, Computer Information, Services, and Analysis Tools

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

41.01 Instrumentation Manuals On-Line
E. Bryson (CFHT)
41.02 The World Wide Web and ADS Services
A. Accomazzi, C. Grant, G. Eichhorn, M. Kurtz and S. Murray (SAO)
41.03 Real Time Display Options for the PCA Experiment on XTE
41.04 Full Journal Articles in the ADS Astrophysics Science Information and Abstract Service
G. Eichhorn, M. J. Kurtz, A. Accomazzi, C. S. Grant and S. S. Murray (SAO)
41.05 New Atomic Data for Astrophysics
D. A. Verner, G. Ferland and K. Korista (University of Kentucky, Lexington, KY 40506-0055)
41.06 Preliminary Results from the Second EUVE Source Catalog
J. Lewis, S. Bowyer, M. Lampton, X. Wu, P. Jelinsky, V. Saba, R. Lieu and R. F. Malina (CEA/UCB)
41.07 Research Opportunities with the Public EUVE Archive
B. Antia, B. Stroozas, J. Din, K. McDonald, C. A. Christian and R. F. Malina (CEA/UCB)
41.08 The APS Catalog of the POSS I: New Access, New Data
C. S. Cornuelle, P. Thurmes, S. Musukula, R. M. Humphreys, G. Aldering and S. C. Odewahn (University of Minnesota)
41.09 Applications of Clustering Analysis and Unsupervised Classification Algorithms to Digitized POSS-II
R. R. de Carvalho, S. G. Djorgovski, N. Weir (Caltech), U. Fayyad, J. Roden, A. Gray (JPL) and K. Cherkauer (U. Wisconsin)
41.10 The Beijing-Arizona-Taipei-Connecticut (BATC) Color Survey of the Sky
D. Burstein, J. J. Hester, R. A. Windhorst, L. Clampitt, Y. Li, B. Moore (ASU), L. Z. Fang (UofA), J. S. Chen, J. Zhu, Z. J. Jiang, X. H. Fan, H. Wu, H. J. Yan, Z. Y. Zheng, X. Zhou (BAO), H. J. Su, Z. H. Shang (PMO), F. Z. Chen, Z. G. Deng (USTC), W. H. Sun, W. P. Chen, W. S. Tsay, T. H. Chiueh, C. M. Ko, C. K. Chou (NCU) and P. Lu (WCSU)
41.11 The WGA Catalog of ROSAT Point Sources
N. E. White (LHEA/GSFC), P. Giommi (ESIS/ESA) and L. Angelini (LHEA/GSFC)
41.12 The WGA Catalog of ROSAT Sources: First Results on Time Variability
P. Giommi (ESIS/ESA), N. E. White (LHEA/GSFC) and L. Angelini (LHEA/GSFC)

Session 42. High-Spatial Resolution

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

42.01 Experiments to Assess the Effectiveness of Multiple Laser Guide Stars for Adaptive Optics.
C. Neyman and L. Thompson (University of Illinois at Urbana-Champaign)
42.02 UnISIS: A Laser Guided Adaptive Optics System for the Mt. Wilson 2.5-m Telescope
L. A. Thompson, P. R. McCullough, R. M. Castle, C. R. Neyman, D. W. Bullok, D. L. Goscha (Univ. Ill.) and Y. Xiong (Yunnan Obs.)
42.03 Adaptive Optics with Sodium Laser Guide Stars
M. Lloyd-Hart, J. R. P. Angel, B. Jacobsen, D. Wittman, D. McCarthy and T. Martinez (CAAO)
42.04 High Accuracy Wavefront Stellar Wavefront Sensing with a Zernike Interferometer
B. Jacobsen and J. R. P. Angel (CAAO)
42.05 A Search for Planets of Nearby Stars by Direct Imaging from the Ground
J. R. P. Angel, N. Woolf, D. McCarthy, M. Lloyd-Hart, D. Sandler, R. Q. Fugate and J. I. Lunine (CAAO)
42.06 FASTTRAC I: A High Resolution Infrared Tip-Tilt Imager
L. M. Close, D. Wittman, D. W. McCarthy and M. Rieke (CAAO, Steward Observatory, University of Arizona)
42.07 Stellar Spectroscopy and Adaptive Optics
N. Woolf, J. R. P. Angel and J. Black (Steward Observatory)
42.08 High Resolution Infrared Imaging at the KPNO 4-m: the DLIRIM Experiment
R. G. Probst, N. Buchholz, S. Ridgway, K. M. Merrill, F. Low and I. Gatley (NOAO and U. Arizona)

Session 43. SL-9, Comets, Solar System

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

43.01 HST Spectroscopic Observations of Jupiter Following the Impact of Comet Shoemaker-Levy 9
M. A. McGrath, K. S. Noll, H. A. Weaver (STScI), R. V. Yelle (U. Arizona), L. Trafton (U. Texas), J. Caldwell, C. Barnet (York U.), S. Atreya and S. Edgington (U. Michigan)
43.02 McDonald Observatory Imaging Observations of the Shoemaker-Levy 9/Jupiter Event and its Effects
A. L. Cochran (U. Texas), K. H. Baines (JPL), E. S. Barker, B. E. Clark, W. D. Cochran, M. Frueh (U. Texas), S. Kim, Y. Kim (U. Maryland), A. Kudari, D. F. Lester (U. Texas), C. Na (SwRI), W. Pryor (LASP), J. G. Ries, L. Trafton, A. L. Whipple and J. Wiant (U. Texas)
43.03 Multi-filter Optical Observations of SL9 Impact Spots on Jupiter
G. Gisler (Los Alamos National Laboratory), B. Laubscher (Amparo Corporation), N. Chabot (Los Alamos National Laboratory), K. Boudreaux and R. Grashuis (University of New Mexico)
43.04 Small Fragments of Comet P/Shoemaker-Levy 9
P. R. Kesten, G. F. Gutierrez (SCU), M. Haken and P. J. T. Leonard (UMd)
43.05 Spectroscopy of Jupiter During the Shoemaker-Levy 9 Impacts
W. D. Cochran (U. Texas), E. S. Barker (NASA HQ), A. L. Cochran (U. Texas), C. Na (SWRI), W. Pryor (LASP), K. H. Baines (JPL), M. M. Briley and V. V. Smith (U. Texas)
43.06 Comet Nuclear Magnitudes
J. V. Scotti (LPL)
43.07 Observations of Comet Mueller (1993a)
A. J. Ferro (Arizona State Univ.)
43.08 Spatial Distribution of Cometary Grains
D. G. Schleicher (Lowell Obs.), S. Sackey (N. Arizona U.) and R. G. Ballou (Flagstaff H. S.)
43.09 A Monte Carlo Method for Calculating Orbits of Comets
J. Q. Zheng, M. J. Valtonen, S. Mikkola (Tuorla Obs), J. J. Matese, P. G. Whitman (USL) and H. Rickman (Uppsala Obs)
43.10 Source-Sink Equilibrium Model for Kuiper Belt Small Grain Population, and Far-IR Search in COBE DIRBE Data
A. Dasgupta and D. E. Backman (Franklin and Marshall College)
43.11 CCD Astrometry of ``Critical List'' Minor Planets
A. K. B. Monet (U.S. Naval Observatory Flagstaff Station)
43.12 Long-slit Spectra of Mars in the Thermal Infrared
C. M. Rowland (Stetson U.), G. C. Sloan (NASA Ames) and T. Roush (SFSU and NASA Ames)
43.13 The Rotation Axis of Mercury: A New Determination from Radar Observations
C. H. De Vries (Cornell University) and J. K. Harmon (NAIC)
43.14 HST Images of the Planet Uranus: Satellites and Ring System
D. Currie, D. Dowling (U.Md), K. Seidelman, D. Pascu, J. Rohde (USNO), E. Wells, A. Storrs (STSCI) and B. Zellner (GSU)

Session 44. Solar Observations and Theory

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

44.01 A Measurement of the Rotation Rate in the Deep Solar Interior
J. Schou (Stanford), S. Tomczyk (HAO/NCAR) and M. J. Thompson (QMW)
44.02 Modeling of the Solar Convection Zone
S. Basu, D. J. Bercik (Michigan State U.), A. Nordlund (Copenhagen U. Obs.) and R. F. Stein (Michigan State U.)
44.03 Restoring Full Disk Solar Images
C. G. Toner (NSO) and S. M. Jefferies (Bartol)
44.04 Implementation of an MTF Based Merging Algorithm for Image Data
W. E. Williams, C. Toner and F. Hill (NSO/GONG)
44.05 Measurements of High-Degree Solar Oscillation Parameters
K. T. Bachmann (NSO/NOAO), T. L. Duvall, Jr. (LASP/NASA-GSFC), J. W. Harvey (NSO/NOAO) and F. Hill (NSO/NOAO)
44.06 A Model of P-mode Scattering by Sunspots
Y. Fan (NSO) and D. C. Braun (Sol. Phys. Res. Corp.)
44.07 Results of the September 26, 1994 Balloon Flight of the Solar Disk Sextant: Implications for the Variability of the Solar Diameter and Oblateness
S. Sofia (Yale/CSSR), W. Heaps (NASA/GSFC), L. Twigg (NASA/GSFC), T. J. Lydon (Yale/CSSR) and U. J. Sofia (NASA/GSFC)
44.08 A Technique for Incorporating Large-Scale Magnetic Fields within Stellar Models: Implications for the Variability of the Solar Radius, Luminosity, and Pulsation Frequencies
T. J. Lydon (Yale/CSSR) and S. Sofia (Yale/CSSR)
44.09 Preliminary Comparison of NASA/NSO Spectromagnetograph Observations with Solar Irradiance
H. P. Jones (NASA/GSFC) and M. J. Wills (Harvard)
44.10 Correlations Between Full Disk Magnetograms and Solar Contrast
S. R. Walton, G. A. Chapman (SFO/CSUN) and Y. Jayasinha (Van Nuys HS)
44.11 Flows at Filament Footpoints
J. B. Zirker (NSO)
44.12 Eclipse Observations of the Extreme Solar Limb Profile of HI Pfund $\beta$ Emission.
T. A. Clark (U Calgary), C. A. Lindsey, D. M. Rabin and W. C. Livingston (NSO, Tucson)
44.13 Forbidden Spectral Lines from the Solar Corona Below 1000 \AA
W. E. Behring (NASA Goddard Space Flight Center)
44.14 EUV Solar Observations with Voyager 2 Spectrometer
G. De Toma and B. R. Sandel (Lunar and Planetary Laboratory, Tucson, AZ, 85721, USA)

Session 45. Stellar Activity I, Late Type Stars

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

45.01 GHRS Observations of Procyon and HR 1099
B. E. Wood and J. L. Linsky (JILA, NIST, and U. Colorado)
45.02 The Sun in Time: Rotation-Activity Relations for Solar Analogues of Different Ages
J. D. Dorren (U.Penn.), E. F. Guinan and L. E. DeWarf (Villanova U.)
45.03 In Pursuit of the FIP Effect and Element Abundance Anomalies in Late-Type Stellar Coronae with EUVE
J. J. Drake (CEA/UCB), J. M. Laming and K. G. Widing (NRL)
45.04 GHRS Spectra of the Very Low Mass Star VB 10 (M8 Ve)
J. L. Linsky, B. Wood (JILA, Univ. Colorado and NIST) and A. Brown (CASA, Univ. Colorado)
45.05 ASCA Observations of Solar-like M-flares on Proxima Centauri
B. Haisch (Lockheed Solar and Astrophysics Laboratory), A. Antunes (Inst. of Space and Astron. Sciences, Japan) and J. H. M. M. Schmitt (Max-Planck-Institut f\"ur Extraterr. Physik, Germany)
45.06 Coronal Heating Mechanisms: A Search for Microflare Activity on YZ CMi
R. D. Robinson (CSC), K. G. Carpenter (LASP/GSFC/NASA) and J. W. Percival (Univ of Wisconsin)
45.07 Starspot Areas and Temperatures on Active Stars from TiO Bands
D. O'Neal, J. E. Neff (Penn State) and S. H. Saar (Harvard-Smithsonian Center for Astrophysics)
45.08 Chromospheric Activity in Red Giants of M67
A. K. Dupree (CfA), B. A. Whitney (CfA) and L. Pasquini (ESO)
45.09 GHRS Spectra of $\alpha$ Tau
K. Carpenter (LASP/NASA-GSFC), R. Robinson (CSC@LASP/NASA-GSFC) and P. Judge (HAO/NCAR)
45.10 HST/GHRS and EUVE Spectra of the Active Clump Giant $\beta$ Ceti (K0 III)
T. R. Ayres, A. Brown (CASA/U.Colorado), S. Drake (GSFC), T. Simon (IfA/U.Hawaii), R. A. Stern (LPARL) and B. E. Wood (JILA/U.Colorado)
45.11 High-precision Photometry of Proxima Centauri and Barnard's Star using {\it HST} Fine Guidance Sensor 3
G. F. Benedict, B. McArthur, E. Nelan, D. Story, A. L. Whipple, Q. Wang, W. H. Jefferys, P. D. Hemenway, P. J. Shelus (McDonald Obs., U. Texas), R. Duncombe (Aerospace Eng., U. Texas), W. F. van Altena (Yale U.), O. G. Franz (Lowell Obs.) and L. W. Fredrick (Astronomy Dept., U. Virginia)
45.12 A New Verification of T$_{eff}$, g, and C/O for $\mu$ Gem
T. R. Young (WSU) and D. R. Alexander (WSU)
45.13 Fluorescent Clues to the Atmospheric Structure of AGB Stars
D. G. Luttermoser (ARC)
45.14 1-5 micron Arcturus Atlas
K. H. Hinkle, L. Wallace and W. Livingston (NOAO)
45.15 Spectral Classification of Cold IRAS Stars: Supergiants
S. Winfrey (U. of Mich.), C. Barnbaum (NRAO), M. Morris (UCLA) and A. Omont (IAP)
45.16 The [Fe/H] Consistency of the Wolf 630 Moving Group
B. J. Taylor (BYU)

Session 46. White Dwarfs

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

46.01 Theoretical DA White Dwarf Model Sequences and Luminosity Functions
M. A. Wood (Florida Institute of Technology)
46.02 Model Atmospheres for the ``Most Abnormal'' DZ White Dwarf
P. A. Aannestad, P. Hauschildt (ASU), G. L. Hammond (U.So.Fl.) and F. Allard (UBC)
46.03 Observations of Circumstellar Gas Associated With Hot White Dwarfs
J. B. Holberg, J. Collins (U. Arizona/LPL), R. W. Tweedy (U. Arizona/Steward), F. C. Bruhweiler (Catholic U.), E. M. Sion (Villanova) and M. A. Barstow (Leicester)
46.04 Radiative Levitation in Hot White Dwarfs
P. Chayer (CEA/UCB), G. Fontaine and F. Wesemael (Univ. Montr\'eal)
46.05 Modeling G29--38
S. J. Kleinman (Astronomy Dept., Univ. of Texas at Austin)
46.06 Ultraviolet Spectropolarimetry of GRW+70 8247 with the HST Faint Object Spectrograph
R. G. Allen (Steward Observatory) and S. Jordan (Kiel University)
46.07 Luminosity Functions of Wide Binaries - The Low Luminosity Stars
J. A. Smith and T. D. Oswalt (Fl. Inst. of Tech.)
46.08 Insights into the ISM and the Spectral Evolution of White Dwarfs from EUVE Observations of GD 659 and EUVE J2009-604
S. Vennes, J. Dupuis and S. Bowyer (CEA/UCB)

Session 47. Planetary Nebulae

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

47.01 IRAS21282+5050's Molecular Envelope Structure Revealed in 12CO
L. Likkel (Washington State University) and M. Meixner (University of Illinois)
47.02 The Infrared Spectra of Planetary Nebulae
D. M. Kelly (Univ. of Texas), W. B. Latter (NRAO), M. Luhman, S. Pak and J. Lacy (Univ. of Texas)
47.03 Narrow-band 500.7 nm HST Images of Planetary Nebulae in the Magellanic Clouds
E. Vassiliadis (STScI), M. A. Dopita (MSSSO), R. C. Bohlin, H. C. Ford (STScI), S. J. Meatheringham (MSSSO), J. P. Harrington (U.Maryland), P. R. Wood (MSSSO), T. P. Stecher and S. P. Maran (GSFC)
47.04 Molecular Hydrogen Emission from Young Planetary Nebulae
D. L. Shupe, L. Armus, R. A. Knop, J. E. Larkin, K. Matthews and B. T. Soifer (Caltech)
47.05 A Survey For Planetary Nebulae in Globular Clusters
G. H. Jacoby (NOAO/KPNO) and L. K. Fullton (Univ. of North Carolina)
47.06 High Resolution Near-IR Spectroscopy of Hubble 12
K. Luhman (Steward Observatory)
47.07 A New Look at Carbon Abundances in Planetary Nebulae
K. B. Kwitter (Williams College), R. B. C. Henry (U. of Oklahoma) and J. F. Buell (U. of Oklahoma)
47.08 The Structure and Chemistry of Planetary Nebulae: Optical Imaging and Millimeter-wave Spectroscopy
R. Sahai (JPL/ Caltech, Pasadena), J. Trauger (JPL/ Caltech, Pasadena), A. Wootten (NRAO, Charlottesville, VA), L. Nyman (SEST/ESO, La Silla, Chile) and F. Rantakyr\"o (SEST/ESO, La Silla, Chile)
47.09 HST and Optical Observations of the Halo PN K648
R. Bohlin, L. Bianchi and H. Ford (STScI)
47.10 HST/FOS Spectroscopy of the Central Star of NGC 7027
I. Hubeny (USRA/GSFC), S. R. Heap (NASA/GSFC) and T. Lanz (USRA/GSFC)
47.11 NLTE Analysis of Keck HIRES Spectra of K648: The Central Star of the Planetary Nebula Ps1 in M15
J. K. McCarthy (Caltech), R. Mendez (Instituto de Astronomia y Fisica del Espacio, Buenos Aires) and R. Kudritzki (Institut f\"ur Astronomie und Astrophysik, M\"unchen)
47.12 HST Observations of Circumstellar and Interstellar Absorption Lines in Planetary Nebula Central Stars
H. L. Dinerstein, C. Sneden, R. McQuitty (U.Texas/Austin), S. R. Heap (NASA/GSFC) and L. Danly (STScI)
47.13 Photometric Variability of Planetary Nebula Central Stars
S. A. Maene, R. Ciardullo (Penn State) and H. Bond (STScI)
47.14 Helium in Planetary Nebulae and Asymptotic Giant Branch Models
J. Buell, R. B. C. Henry, E. Baron (U. Okla) and K. Kwitter (Williams College)
47.15 Radial Velocity Variability of Proto-Planetary Nebulae
B. J. Hrivnak, K. Loewe, W. Lu (Valparaiso U.), S. Morris and A. W. Woodsworth (DAO)

Session 48. Young Stars

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

48.01 WFPC2 Imaging of HH1-2 and HH34
J. J. Hester, P. A. Scowen (ASU), R. Lynds, E. J. O'Neil, Jr. (KPNO) and W. Idt
48.02 WFPC2 Observations of the HH 30 Disk and Jet
K. R. Stapelfeldt (JPL), C. J. Burrows (STSci), J. Krist (STSci), A. M. Watson (Lowell), J. T. Trauger (JPL), G. E. Ballester (Michigan), S. Casertano (Johns Hopkins), J. T. Clarke (Michigan), D. Crisp (JPL), R. W. Evans (JPL), J. S. Gallagher (Wisconsin), R. E. Griffiths (Johns Hopkins), J. J. Hester (Arizona State), J. G. Hoessel (Wisconsin), J. Holtzman (Lowell), J. R. Mould (Mt. Stromlo), P. A. Scowen (Arizona State) and J. A. Westphal (Caltech)
48.03 HST Images and Near-Infrared Polarimetric Images of the Orion Nebula Source PC 190
M. W. Castelaz (East Tenn. St. U.), J. Kastner (MIT), D. Weintraub (Vanderbilt U.) and B. McCollum (CSC)
48.04 Rotational Periods of Naked T Tauri Stars in Orion
S. J. Wolk (Astronomy Program, SUNY at Stony Brook) and F. M. Walter (Astronomy Program, SUNY at Stony Brook)
48.05 Limits on the Differential Rotation of T Tauri Stars
C. M. Johns (McDonald Observatory, The University of Texas at Austin)
48.06 Multidimensional Radiative Heat Transfer in Protostellar Envelopes
K. M. Chick, J. B. Pollack and P. Cassen (NASA Ames)
48.07 The $\beta$ Pictoris Phenomenon in A-Shell Stars
C. A. Grady, M. R. P\'erez (ARC) and A. Talavera (ESA- IUE Observatory)
48.08 Centimeter Radio Emission from Low-Mass Weak T Tauri Stars in Taurus-Auriga
E. Chiang (MIT) and R. B. Phillips (MIT Haystack Observatory)
48.09 Theoretical Position-Velocity Diagrams of Flux and Electron Density in Herbig-Haro Objects
R. Indebetouw (Maria Mitchell Observatory) and A. Noriega-Crespo (MMO and IPAC)
48.10 Rotation Periods and Variability of Trapezium Cluster Stars
W. Herbst, N. L. Eaton (Wesleyan U.) and L. A. Hillenbrand (UMass)
48.11 Molecular Line Survey in Serpens S68
J. P. McMullin (SMTO), L. G. Mundy (UMD), G. A. Blake (CalTech) and B. A. Wilking (UMO-St.Louis)
48.12 HST/GHRS Observations of $\beta$ Pictoris
S. R. Heap, T. Lanz, I. Hubeny and D. Lindler
48.13 Soft X-ray Observations of a Stellar Nursery in the Vicinity of $\beta$-Cru
J. P. Finley and S. Park (Purdue)
48.14 Interferometric Observations of Herbig Ae/Be Stars at 2.73 mm
J. Di Francesco, P. M. Harvey, N. J. Evans II (The University of Texas at Austin) and L. G. Mundy (University of Maryland)
48.15 Disk Accretion and Mass Loss From Young Stars
P. Hartigan (Rice), S. Edwards (Smith College) and L. Ghandour (U Mass)
48.16 2 micron Spectroscopy of Very Young Massive Stars in the Heavily Shrouded HII region M17
M. M. Hanson and P. S. Conti (JILA)
48.17 2--14 $\mu$m Spectroscopy of Vega-type Stars
S. B. Fajardo-Acosta, R. F. Knacke (Penn State Erie), J. A. Hackwell, D. K. Lynch, R. W. Russell (Aerospace Corp.) and M. S. Hanner (JPL)
48.18 Hydrodynamic Simulations of Gravitational Instabilities in Massive Protostellar Disks
A. F. Nelson (Steward Observatory), W. Benz (Steward Observatory) and W. D. Arnett (Steward Observatory)
48.19 The Infrared Nebula and Young Outflow in Lynds 483
G. A. Fuller (NRAO), E. A. Lada (Univ. Maryland), C. R. Masson and P. C. Myers (SAO)
48.20 CCD Photometry of Hubble's Variable Nebula, NGC 2261
B. Martin, D. Bennum, M. Rodrigue, T. Colegrove (University of Nevada, Reno), A. Schultz (STScI), M. Disanti (NASA/GSFC) and U. Fink (LPL/University of Arizona)
48.21 The Pre-Main Sequence Binary W134: 1994 Observations and Analysis
D. L. Padgett (IPAC), K. R. Stapelfeldt (JPL) and J. A. Holtzman (Lowell Observatory)
48.22 The Photometric Variability of Ae and A-Shell Stars
E. M. Halbedel (Corralitos Obs.)

Session 49. Interstellar Dust and Polarization

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

49.01 Ultraviolet Interstellar Linear Polarization. II. The Wavelength Dependence
G. C. Clayton, M. J. Wolff (CASA), R. G. Allen (Steward Observatory) and O. L. Lupie (STScI)
49.02 Dust in the SMC: Dust Models from Interstellar Polarization and Extinction Data
C. V. Rodrigues (U. S\~ao Paulo), G. V. Coyne (Vatican Obs.) and A. M. Magalh\~aes (U. S\~ao Paulo)
49.03 Grains in Ionized Nebulae: Spectral Line Diagnostics
J. Kingdon, G. J. Ferland (U. of Kentucky) and W. A. Feibelman (NASA/GSFC)
49.04 Long-slit Spectra of the Red Rectangle at 3 $\mu$m
G. C. Sloan, J. Bregman (NASA Ames) and C. E. Woodward (Wyoming)
49.05 A Search for Structure in PAH Emission in Extended Sources at 3.3 and 3.4 $\mu$m
J. Bregman (NASA Ames), P. Temi, D. M. Rank (UCSC/UCO), G. C. Sloan and A. S. B. Schultz (NASA Ames)
49.06 3-D Study of ISM in front of SN1987A using Light Echoes
J. Xu, A. P. S. Crotts (Columbia U.) and W. E. Kunkel (Las Campanas Observatory)
49.07 Probing Circumstellar Disks and Outflows with Spectropolarimetry
K. S. Bjorkman (U. Wisconsin)

Session 50. Supernova Remnants

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

50.01 Synchrotron Emission from the Impact of SN87A Remnant with a Circumstellar Ring
D. E. Potter (U. of Colorado, Boulder)
50.02 High Resolution Studies of IRAS Additional Observations: G2.4+1.4
M. Agner (University of Southern Mississippi), R. Canterna (WIRO), L. Townsley (Penn State), R. Hermann (Willamette College) and J. A. Hackwell (The Aerospace Corp.)
50.03 The Interstellar Medium Surrounding the Supernova Remnant W63
T. L. Landecker (Dominion Radio Astrophysical Observatory, National Research Council of Canada), Z. Xi-zhen (Beijing Astronomical Observatory, Chinese Academy of Sciences) and L. A. Higgs (Dominion Radio Astrophysical Observatory, National Research Council of Canada)
50.04 A High Resolution X-ray and Optical Study of the Galactic Supernova Remnant G109.1--1.0
A. P. Hurford and R. A. Fesen (Dartmouth College)
50.05 Theoretical Calculations of Synchrotron X-rays from Supernova Remnants: Images and Spectra
S. P. Reynolds (NCSU)
50.06 ASCA Observations of the Composite SNR G29.7-0.3
E. L. Blanton and D. J. Helfand (Columbia University)
50.07 Evidence for Free-Free Absorption from Unshocked Ejecta Inside Cas-A
N. E. Kassim (NRL), R. A. Perley (NRAO-VLA), K. S. Dwarakanath (NRAO-VLA) and W. C. Erickson (UMD)
50.08 An Optical Search For Supernova Remnants in Nearby Spiral Galaxies
D. M. Matonick, R. A. Fesen (Dartmouth College), W. P. Blair (Johns Hopkins Univ) and K. S. Long (STScI)
50.09 Optical and X-Ray Observations of the Western Edge of the Cygnus Loop
N. A. Levenson, J. R. Graham (UCB), J. J. Hester (ASU), R. Petre (GSFC) and J. C. Raymond (CfA)
50.10 High Velocity Gas in the Vela Supernova Remnant
A. C. Danks (Hughes STX) and K. R. Sembach (MIT)
50.11 An X-ray Study of the Supernova Remnant W44
I. Harrus and J. P. Hughes (SAO)

Session 51. Dwarf Galaxies

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

51.01 Dynamical Models of the Sagittarius Dwarf Galaxy
K. V. Johnston, D. N. Spergel and L. Hernquist.
51.02 The Sagittarius Dwarf
P. Harding
51.03 Deep HST Photometry of the Leo I Dwarf Spheroidal Galaxy
M. Mateo (Dept of Astronomy, U Mich), E. W. Olszewski (Steward Observatory, U Ariz), M. -G. Lee (Dept of Astronomy, Seoul University, S. Korea), A. Saha (STScI), P. Hodge (Dept of Astronomy, U Wash), M. Keane (Lick Observatory, UCSC), N. Suntzeff (CTIO), W. Freedman and I. Thompson (Carnegie Obs)
51.04 The Internal Kinematics of the Leo II Dwarf Spheroidal Galaxy
E. W. Olszewski (Steward Obs, U Ariz), M. Mateo (Dept of Astronomy, U Mich), S. S. Vogt and M. J. Keane (Lick Obs, UCSC)
51.05 The Stellar Populations of the Leo II Dwarf Spheroidal Galaxy
K. J. Mighell (Columbia University) and R. M. Rich (Columbia University)
51.06 Bursts of Star Formation in the Carina Dwarf Spheroidal Galaxy
T. A. Smecker-Hane, P. B. Stetson and J. E. Hesser (NRC/HIA/DAO)
51.07 The Absolute Proper Motion of the Sculptor Dwarf Spheroidal Galaxy
A. E. Schweitzer (U. Wisconsin- Madison) and K. M. Cudworth (Yerkes Obs., U. Chicago)
51.08 Variable Stars in the Draco Dwarf Spheroidal
H. C. Harris (USNO), H. A. Smith (Michigan State University) and N. A. Silbermann (IPAC)
51.09 Near Infrared and Optical Images of the Dwarf Irregular Galaxy NGC 1705
S. Ram\'{\i}rez, A. C. Quillen and J. A. Frogel (Ohio State University)
51.10 Dwarf Spirals
J. Schombert (NASA HQ), R. Pildis (UMichigan), J. Eder (Arecibo Obs.) and A. Oemler (Yale Univ.)
51.11 Abundances in Blue Compact Dwarf Galaxies
O. M. DeWolfe and J. J. Salzer (Wesleyan U.)
51.12 The Young SMC Cluster NGC 330 in the Optical and Infrared
E. K. Grebel (Sternwarte Bonn), W. J. Roberts (CAS), W. Brandner (AI W\"urzburg) and A. Moneti (ESTEC)
51.13 Molecular Clouds in the Large Magellanic Cloud
M. L. Kutner (NRAO)
51.14 Star Formation in the Large Magellanic Cloud
D. Caldwell and M. Kutner (NRAO, Rensselaer Polytechnic Institute)
51.15 Detection of H$\alpha$ Emission from the Magellanic Stream: Evidence for an Extended Gaseous Galactic Halo
B. J. Weiner and T. B. Williams (Rutgers University)
51.16 Optical Observations of Candidate Intergalactic HI Clouds
C. L. Taylor, E. Brinks (NRAO) and E. D. Skillman (U. Minnesota)

Session 52. Elliptical Galaxies

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

52.01 Globular Cluster Systems as Distance Indicators
K. M. Ashman (Univ. of Kansas), S. E. Zepf (U.C. Berkeley) and A. Conti (Univ. of Kansas)
52.02 The Globular Cluster Systems of Elliptical Galaxies
D. Geisler (CTIO), S. Zepf (UC Berkeley), K. Ashman (U. Kansas), W. Harris, D. McLaughlin and J. Secker (McMaster U.)
52.03 Velocity dispersion of individual NGC 5128 globular clusters and the fundamental plane for extragalactic globular clusters.
P. Dubath (UCO/Lick Observatory)
52.04 Globulars to 27.6 Magnitude in the Coma Cluster
W. A. Baum, M. Hammergren (U. Washington), R. M. Light, S. P. Ewald (Caltech), E. J. Groth (Princeton), E. A. Ajhar, T. R. Lauer, C. R. Lynds, E. J. O'Neil (KPNO), J. A. Holtzman (Lowell Obs.), S. M. Faber and C. J. Grillmair (Lick/UCSC)
52.05 The Globular Cluster System of the dE,N galaxy N3115 DW1
P. R. Durrell, D. E. McLaughlin, W. E. Harris (McMaster U.) and D. A. Hanes (Queens U.)
52.06 The Stellar Velocity Field and Intrinsic Shape of NGC 1700
T. S. Statler (UNC), T. Smecker-Hane (DAO) and G. Cecil (UNC)
52.07 Dark Matter in NGC 4636
M. Loewenstein, R. Mushotzky (NASA/GSFC), H. Awaki, H. Matsumoto (Kyoto University), K. Makishima and K. Matsushita (University of Tokyo)
52.08 Populations of Globular Clusters in Merger Remnants
M. Bolte, L. Hernquist and M. L. Weil (University of California, Santa Cruz)
52.09 A VLA Radio Continuum Survey of Polar-Ring Galaxies
A. L. Cox (NRAO) and L. S. Sparke (Univ. of WI -- Madison)
52.10 Modelling the Distribution of Globular Cluster Masses
D. E. McLaughlin and R. E. Pudritz (McMaster University)
52.11 An Environmental Correlation in the X-ray Properties of Early-Type Galaxies
K. Dendy and R. E. White III (University of Alabama)
52.12 Modelling the Lick/IDS Indices using Synthetic Spectra
R. A. Bell and M. J. Tripicco (U. Maryland)
52.13 The Effects of Dust on Broad-Band Color Gradients in Elliptical Galaxies: Centrally Concentrated Distributions
D. R. Silva (NOAO/KPNO) and M. W. Wise (MIT)
52.14 Tidal Torques and the Angular Momentum of Elliptcal Galaxies
J. J. Gonz\'alez, S. Lizano and M. Osorio (IA-UNAM)
52.15 Gas and Stellar Kinematics in Elliptical Galaxies
J. Ballesteros and J. J. Gonz\'alez (IA-UNAM)
52.16 Constraining the Stellar Populations of Elliptical Galaxies with Planetary Nebulae
R. Ciardullo (Penn State), G. Jacoby (KPNO) and J. Feldmeier (Penn State)
52.17 The Infrared D -- $\sigma$ Relation of Elliptical Galaxies
M. Gregg (IGPP, Lawrence Livermore National Laboratory)
52.18 The Distribution of Dark and Luminous Matter in Elliptical Galaxies
N. A. P. Hazell (Fordham University) and C. Jones (SAO)
52.19 A Survey of the ISM in Elliptical Galaxies
M. G. Pastoriza (IF-UFRGS, Porto Alegre, Brazil and STScI (visitor)), F. D. Macchetto (STScI), W. Sparks (STScI) and M. Giavalisco (STScI)
52.20 Heavy Element Abundances in the X-ray Coronae of Early-Type Galaxies
K. Michaud (University of Maine) and W. Forman
52.21 The Interaction of Hot and Cold Gas in Early-Type Galaxies
J. N. Bregman (University of Michigan), D. E. Hogg (NRAO) and M. S. Roberts (NRAO)
52.22 X-ray Emission from Rotating Ellipticals
P. C. Hanlan, P. M. Knezek and J. N. Bregman (U. Michigan)

Session 53. Clusters of Galaxies I

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

53.01 The Evolution of Clusters of Galaxies
L. M. Lubin (Princeton University Observatory)
53.02 The Effects of Rotation on Cooling Flows
C. Garasi, C. Loken and J. Burns (NMSU)
53.03 The Effect of Mergers and Accretions on Clusters of Galaxies
M. M. Crone, A. E. Evrard, D. O. Richstone (U. Michigan) and M. J. Geller (CfA)
53.04 The Effects of Substructure on Dynamical Studies of Galaxy Clusters
C. M. Bird (Univ. of Kansas)
53.05 Galactic Feedback and Cluster Evolution
C. A. Metzler and A. E. Evrard (U. of Michigan)
53.06 Structure and Dynamics of Abell 2634
J. M. Solanes, M. Scodeggio, R. Giovanelli and M. P. Haynes (Cornell U./NAIC)
53.07 Discovery of a Radio Halo Source in Abell 2163
T. Herbig (Princeton University, Physics Department) and M. Birkinshaw (Harvard-Smithsonian Center for Astrophysics)
53.08 Keck/LRIS Spectroscopy of the Distant Cluster Cl\,0016+16
G. D. Wirth (UC Santa Cruz) and D. C. Koo (UCO/Lick)
53.09 A Survey with the HST
E. J. Groth (Princeton), J. A. Kristian (Carnegies Obs.), R. Lynds, E. J. O'Neil, Jr. (KPNO), R. Balsano, J. Rhodes (Princeton) and W. Idt
53.10 {\it Hubble Space Telescope} Observations of the Galaxy Population of a Rich Cluster at $z=0.9$
S. C. Trager, S. M. Faber (UCO/Lick Observatory), E. J. Groth (Princeton), J. A. Holtzman (Lowell Observatory), R. Lynds, E. J. O'Neil, Jr. (KPNO) and W. Idt (vaious institutions)
53.11 The Serendipitous Discovery of a Possible Young Galaxy Cluster at z=2.40 in Deep HST/WFPC2 Images
S. M. Pascarelle, R. A. Windhorst, S. P. Driver, E. J. Ostrander, S. B. Mutz, B. E. Franklin (ASU) and W. C. Keel (U. Alabama)

Session 54. HST Medium Deep Survey

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

54.01 Highlights from the HST Medium Deep Survey
R. E. Griffiths, K. U. Ratnatunga, S. Casertano, M. Im, L. W. Neuschaefer (Johns Hopkins University), R. A. Windhorst, S. P. Driver, E. J. Ostrander, P. C. Schmidtke, S. B. Mutz (Arizona State University), R. S. Ellis, G. F. Gilmore, R. A. W. Elson, K. Glazebrook, B. Santiago (IoA, Cambridge), R. F. Green, V. Sarajedini (NOAO), J. P. Huchra (CfA), G. D. Illingworth, D. C. Koo, D. A. Forbes, A. C. Phillips (UCSC), J. A. Tyson and P. McIlroy (Bell Labs)
54.02 The HST Medium Deep Survey: Steward BVRIJK and FASTTRAK JHK imaging and photometry of faint field galaxies from parallel WF/PC images
S. B. Mutz, R. A. Windhorst, E. J. Ostrander (ASU), D. Wittman, L. Close, D. McCarthy (UofA), R. E. Griffiths and L. W. Neuschaefer (JHU)
54.03 The HST Medium Deep Survey: Light Profiles and Redshifts for Field Galaxies out to z${\sim}$0.6
P. C. Schmidtke, R. A. Windhorst, S. B. Mutz, S. M. Pascarelle, B. E. Franklin, E. J. Ostrander (ASU) and R. E. Griffiths (JHU)
54.04 Size and Morphology of Galaxies in the HST Medium Deep Survey
K. U. Ratnatunga, S. Casertano, R. E. Griffiths, M. Im, L. W. Neuschaefer (Johns Hopkins University) and E. J. Ostrander (Arizona State University)
54.05 The Type-Dependence of the MDS Galaxy Correlations out to z=0.5
L. W. Neuschaefer, R. E. Griffiths, K. U. Ratnatunga, M. Im, S. C. Casertano, E. W. Wyckoff (Johns Hopkins University), E. J. Ostrander (Arizona State University), R. S. Ellis, G. Gilmore (IoA, Cambridge), R. F. Green (NOAO), J. P. Huchra (CfA), G. D. Illingworth, D. C. Koo (UCSC) and J. A. Tyson (Bell Labs)
54.06 Constraints on Cosmological Models from the HST Medium Deep Survey
M. Im, R. E. Griffiths, S. Casertano, K. U. Ratnatunga and L. W. Neuschaefer (Johns Hopkins University)

Session 55. Early Universe

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

55.01 The Lithium Chemistry of the Early Universe
P. C. Stancil, S. Lepp (UNLV), A. Dalgarno and K. Kirby (CfA)
55.02 A Serendipitous Long-Slit Spectroscopic Survey for Primeval Galaxies
D. Thompson and S. G. Djorgovski (Caltech)
55.03 Effects of supernovae feedback on galaxy formation
A. Klypin (NMSU), G. Yepes (Madrid University, Spain), A. Khokhlov (University of Texas, Dept. Astronomy, Austin) and R. Kates (Zentralinstitut fur Astrophysik, Potsdam, Germany)
55.04 Conservation in Viscous Flows Using Adaptive Smoothed Particle Hydrodynamics
J. M. Owen (OSU) and M. L. Fisher (Battelle)
55.05 On the Origin of Blue Lobes in Central Cooling Flow Galaxies
D. S. De Young (KPNO/NOAO)
55.06 Substructures and Density Profiles of Clusters in Models of Galaxy Formation
Y. P. Jing (Univ. of Arizona, Max-Planck-Inst.), H. J. Mo, G. B\"orner (Max-Planck-Inst.) and L. Z. Fang (Univ. of Arizona)
55.07 Determination of Galaxy Alignments in the Pisces-Perseus Supercluster
J. E. Cabanela (U Minn) and G. Aldering (U Minn)

Session 56. Large-Scale Structure

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

56.01 Deep Galaxy Counts in the K-Band with the Keck Telescope
S. Djorgovski, B. T. Soifer, M. A. Pahre, J. E. Larkin, J. D. Smith, G. Neugebauer, I. Smail, K. Matthews, D. W. Hogg, R. D. Blandford, J. Cohen (Caltech), W. Harrison (CARA) and J. Nelson (UCSC)
56.02 Faint Galaxy Counts and the Angular Correlation Function
M. Carlson, A. Klypin (New Mexico State University), H. Jorgensen, I. Novikov (Copenhagen Observatory), G. Yepes and A. Campos (Madrid University)
56.03 Redshift Survey Strategies
A. W. Jones, J. Bland-Hawthorn (Anglo-Australian Observatory) and N. Kaiser (Canadian Institute for Theoretical Astrophysics)
56.04 An Analysis of Rich Cluster Redshift Survey Data for Large Scale Structure Studies
K. Slinglend, D. Batuski, S. Haase (U. Maine) and J. Hill (Steward Obs.)
56.05 A Periodicity Rule for Redshift Quantization
W. Tifft (U. Ariz.)
56.06 The Cosmological Distortion of Voids in Redshift Space
B. S. Ryden (Ohio State U.)
56.07 A New Approach to the Angular Size-Redshift Test
C. R. Rabaca and R. A. Dupke (The University of Alabama)
56.08 The Power Spectrum of Galaxy Clustering in the Las Campanas Fiber-Optic Redshift Survey
H. Lin, R. P. Kirshner (Harvard), S. A. Shectman, S. D. Landy (Carnegie), A. Oemler (Yale), D. L. Tucker (Potsdam) and P. L. Schechter (MIT)
56.09 A Deep Redshift Survey of IRAS FSS Galaxies in the Bo\"otes Void
G. Aldering (U Mich and OCIW), G. D. Bothun (U Oregon), R. P. Kirshner and R. Marzke (CfA)
56.10 Implementation of an Adaptive Particle-Mesh N-body Algorithm on the CRAY T3D Supercomputer
M. Kopko (Pittsburgh Supercomputing Center) and U. Pen (Princeton Observatory)

Session 57. COBE and Related Papers

Display, Tuesday, 9:20am - 6:30pm, Exhibit Hall A (Tucson Convention Center)

57.01 On the RMS Anisotropy at $7\deg$ and $10\deg$ Observed in the COBE-DMR Two Year Sky Maps
A. J. Banday, K. M. Gorski (HSTX), L. Tenorio, G. F. Smoot, C. H. Lineweaver (UC Berkeley), A. Kogut, G. Hinshaw (HSTX) and C. L. Bennett (GSFC)
57.02 Non-Gaussian Statistics at Large Angular Scales: {\it COBE} DMR 2-Year Sky Maps
C. L. Bennett (NASA/GSFC), A. Kogut, G. Hinshaw (HSTX), A. J. Banday (USRA), P. M. Lubin (UCSB) and G. F. Smoot (UCB)
57.03 Phenomenology of Medium-Scale CMB Anisotropy
A. Kogut, G. Hinshaw (HSTX) and C. L. Bennett (GSFC)
57.04 Analysis of the 1992 Medium Scale Anisotropy Measurement using CDM and Flat Spectral Models
J. Puchalla (University of Chicago)
57.05 Redshift Quantization in the Cosmic Background Rest Frame
W. J. Cocke and W. G. Tifft (Steward Observatory)
57.06 The COBE$^*$/DIRBE Near-Infrared Polarization Data Products
G. B. Berriman (GSC), M. G. Hauser, T. Kelsall, R. F. Silverberg and S. H. Moseley (NASA/GSFC)
57.07 New Light on IRAS After DIRBE
D. Leisawitz, M. G. Hauser, T. Kelsall, R. F. Silverberg (NASA/GSFC), N. Odegard, S. Stemwedel, J. Weiland (GSC/ARC), S. Burdick (GRC), T. N. Gautier (NASA/JPL), F. C. Gillett (NOAO), T. L. Murdock (GRC), G. Neugebauer (Caltech), W. T. Reach (USRA) and S. Wheelock (IPAC)
57.08 Infrared Observations of the Ecliptic Poles with COBE/DIRBE
R. F. Silverberg, W. T. Reach, M. G. Hauser, T. Kelsall, S. H. Moseley (NASA/GSFC), S. Burdick, T. Murdock (GRC), H. T. Freudenreich (Hughes/STX), B. A. Franz, S. W. Stemwedel (ARC), G. N. Toller, J. L. Weiland (GSC) and E. L. Wright (UCLA)
57.09 COBE/DIRBE Survey of Molecular Gas at High Galactic Latitude
W. T. Reach (USRA), W. F. Wall (INAOE), M. G. Hauser (NASA/GSFC), T. J. Sodroski (ARC), N. Odegard and J. L. Weiland (GSC)
57.10 An Upper Limit to the Infra-red Background from Observations of TeV Gamma-Rays
S. Biller (University of Leeds)
57.11 The COBE FIRAS Datasets: A view of the Big Bang and the Far Infrared Sky
R. A. Shafer, J. C. Mather (NASA/GSFC), D. Fixsen (ARC), S. Brodd (HSTX), J. Gales (GSC), K. Jensen, S. Read, L. Rosen, F. Shuman (HSTX) and A. Trenholme (GSC)
57.12 Results from the OVRO SZE Survey of Nearby X-Ray Selected Clusters
J. E. Baker (U.C. Berkeley), S. T. Myers, A. C. S. Readhead (Caltech) and T. Herbig (Princeton)

Session 58. Distance Scale, Spiral Galaxies I

Oral, Tuesday, 10:00am - 11:30am, Ballroom I (Tucson Convention Center)

58.01 Discovery of Cepheid Variables in the Virgo Cluster Galaxy NGC 4571
M. J. Pierce (Indiana University), D. L. Welch (McMaster University), R. D. McClure (DAO/HIA/NRC), S. van den Bergh (DAO/HIA/NRC), R. Racine (Universit\'e de Montr\'eal) and P. B. Stetson (DAO/HIA/NRC)
58.02 The Hubble Paramerter
S. van den Bergh (DAO)
58.03D High-Velocity H {\sc i} and Superbubbles in Nearby Disk Galaxies
E. Schulman (University of Michigan)
58.04D Molecular Gas in the High-Pressure Environments of Galactic Bulges
T. T. Helfer (UMD)
58.05D Spiral Structure and Global Star Formation Processes in M 51
R. A. Gruendl (University of Maryland)
58.06 HI in M81: Spiral Density Waves
D. S. Adler (NRAO-VLA) and D. J. Westpfahl (NMIMT)

Session 59. General Properties of AGN

Oral, Tuesday, 10:00am - 11:30am, Ballroom II (Tucson Convention Center)

59.01D Spectra and Luminosities of X-ray-selected Active Galactic Nuclei
W. A. Morgan, Jr. (Penn State/STScI)
59.02 X-ray Properties of a Thousand Quasars: ROSAT Observations of the LBQS
P. J. Green (SAO), N. Schartel (MPE), S. F. Anderson (UWa), P. C. Hewett (IoA), C. B. Foltz (UAz), W. Brinkmann, H. Fink, J. Tr\"umper (MPE) and B. Margon (UWa)
59.03 X-Ray Properties of the Nuclear Source in the Cygnus A Galaxy
D. E. Harris (SAO), R. A. Perley (NRAO) and C. L. Carilli (Leiden, NL)
59.04 HST Observations of the Host Galaxies of High Redshift Radio-Loud Quasars
M. D. Lehnert (IGPP/LLNL), W. van Bruegel (IGPP/LLNL), T. M. Heckman (JHU) and G. K. Miley (Leiden)
59.05 Dusty Quasars at High Redshift
W. van Breugel (IGPP/LLNL) and A. Dey (University of California, Berkeley)
59.06D 3mm-VLBI : Detection Methods and Results
S. Doeleman, A. E. E. Rogers (Haystack Observatory) and J. M. Moran (CfA and Harvard University)

Session 60. Extremes in Astrophysics

Oral, Tuesday, 10:00am - 11:30am, Ballroom III (Tucson Convention Center)

60.01 Gamma Ray Astronomy at TeV Energies
T. C. Weekes (Whipple Observatory, Harvard-Smithsonian CfA)
60.02 Gamma-Ray Bursts - A Cosmic Riddle
S. E. Woosley (Astronomy Department, UCSC)

Session 61. Novae and Stellar Accretion

Oral, Tuesday, 10:00am - 11:30am, Mohave (Tucson Convention Center)

61.01 The Structure and Evolution of the Nova Cygni 1992 Shell from HST Observations
W. J. Hack, F. Paresce, M. Livio and K. Korista (STScI)
61.02D V1974 Cygni: Optical and Ultraviolet Evolution and Analysis
S. J. Austin (Arizona State University)
61.03 Disk Instabilities in the X-Ray Novae
J. K. Cannizzo, W. Chen (NASA/GSFC/USRA) and M. Livio (STScI)
61.04D Accretion Regions in Direct-Impact Algol Binaries
G. E. Albright and M. T. Richards (University of Virginia)
61.05 The Epsilon Aurigae Sceondary: A Hydrostatically Supported Disk
J.J. Lissauer, S.E. Wolk, C.A. Griffith (SUNY) and D.E. Backman (Franklin and Marshall Col.)
61.06D The CV-like Short Timescale Light Variations Observed in Symbiotic Stars
D. Dobrzycka (CfA)

Session 62. Supernova Remnants and Pulsars

Oral, Tuesday, 10:00am - 11:30am, Maricopa (Tucson Convention Center)

62.01D Fabry-Perot Imaging Spectroscopy of the Crab Nebula, Cassiopeia A, and Nova GK Persei
S. S. Lawrence, G. M. MacAlpine (U. Michigan), A. Uomoto (Johns Hopkins) and B. E. Woodgate (NASA/GSFC)
62.02 Search for Ultrahigh Energy Gamma-Ray Emission from Supernova Remnants
G. E. Allen, C. Y. Chang, M. L. Chen, C. L. Dion, J. A. Goodman, M. J. Stark (UMCP), D. Berley (UMCP, NSF), S. Biller (UCI, U.Leeds), R. L. Burman, T. J. Haines, C. M. Hoffman, D. E. Nagle, D. M. Schmidt, C. Sinnis (LANL), M. Cavalli-Sforza, D. Coyne, D. Dorfan, L. Kelley, R. Schnee, D. A. Williams, T. Yang (UCSC), P. Chumney, A. Shoup, G. B. Yodh (UCI), R. W. Ellsworth (GMU), S. Klein (UCSC, LBL) and J. -P. Wu (UCR)
62.03 PSPC Observation of the Composite Supernova Remnant 3C391
J. -H. Rho and R. Petre (NASA/GSFC)
62.04 A Search for a Pulsar in the Remnant of SN1987A with the High Speed Photometer
J. F. Dolan (NASA GSFC), J. W. Percival (U. Wisc.), P. T. Boyd (USRA GSFC), J. D. Biggs (Perth Obs.), R. C. Bless (U. Wisc), J. L. Elliot (M.I.T.), M. J. Nelson (U. Wisc.), E. L. Robinson (U. Texas), M. J. Taylor (Loras Coll.), G. W. van Citters (NSF) and K. G. Wolinski (STScI)
62.05 Are There Two Pulsar Emission Mechanisms?
J. C. Weatherall and J. A. Eilek (NMT)
62.06 Neon Line Emission in the ASCA X-ray spectrum of the 7s pulsar 4U1626-67
L. Angelini, N. E. White, T. R. Kallman (LHEA/GSFC), F. Nagase (ISAS), A. Yoshida, T. Takeshima (RIKEN) and C. Becker (MIT)
62.07 Radio and Optical Observations of PSR J0045$-$7319
V. M. Kaspi (IPAC/Caltech/JPL), J. F. Bell, M. Bessell, B. Stappers (MSSSO/ANU, Australia), M. Bailes and R. N. Manchester (ATNF, Australia)
62.08 Neutron Star Initial Spins and Gravitational Radiation
D. Lai (Caltech)

Session 63. WGAIT

Oral, Tuesday, 10:00am - 11:30am, Greenlee (Tucson Convention Center)

63.01 Astroeconomics: Small Telescopes and Networking
D.L. Crawford (NOAO)
63.02 A Robotic Telescope on the Internet for practical classroom Astronomy
J. E. F. Baruch (Department of Industrial Technology, University of Bradford, Bradford BD7-1DP. U.K.)
63.03 Present and Projected Impact of the GNAT System on the Astronomy Program at Colorado State University
R. B. Culver (Colorado State University)
63.04 A Public Domain CCD Camera Design
R. A. Tucker (Southwest Cryostatics)
63.05 KODAK Scientific Plate Products - Product Portfolio Update
D.J. Crockett (Eastman Kodak CO.)

Session 64. Urey Prize Lecture

Invited, Tuesday, 11:40am - 12:30pm, Ballroom I (Tucson Convention Center)

64.01 On the Diversity of Plausible Planetary Systems
J.J. Lissauer (SUNY)

Session 65. SL-9 Impact, Planets

Oral, Tuesday, 2:00pm - 3:30pm, Ballroom I (Tucson Convention Center)

65.01 Bound to Happen? Long Period Capture of Comets and Impact Statistics
D. M. Kary (UCSB) and L. Dones (San Jose St.)
65.02 X-Ray Emissions Produced as a Result of the Impact of Comet Shoemaker-Levy 9 with Jupiter
J.H. Waite, G.R. Gladstone, C. Na, S.A. Stern, K. Franke (SRI), F Bagenal (U. Colorado), J.T. Clarke (U. Michigan), A.C. Fabian and W.N. Brandt (U. Cambridge)
65.03 Five Micron Light Curves of the Comet SL-9 Jupiter R-Impact from the Air Force Maui Optical Station
J.L. Africano, D.L. Nishimoto, R.A. Nolan (RPS), P. Kervin, R. Medrano (PL), J.V. Lambert and V.L. Porter (RSOC)
65.04 Unidentified Molecular Bands in Comets
S. Wyckoff, R. Heyd and A. Ferro (Arizona State University)
65.05 Are the Arcs of Neptune Really Stable?
J. H\"anninen and C. Porco (LPL)
65.06 Condensation and the Inhibition of Convection in Giant Planets and Brown Dwarfs
T. Guillot (OCA, Nice and LPL, U of AZ)
65.07 The Role of Cloud Convection in the SL-9 Impact Results
J. I. Lunine (LPL, University of Arizona)

Session 66. Galactic Center

Oral, Tuesday, 2:00pm - 3:30pm, Ballroom II (Tucson Convention Center)

66.01D Self-consistent Dynamical Models of the Galactic Bar
H. Zhao (Columbia University)
66.02D Stellar Ionization of the Thermal Radio Emission Regions in the Galactic Center
A. S. Cotera (Stanford University)
66.03D Origin of the Peculiar Galactic Center He\thinspace{\sc I} Stars
P. Tamblyn, G. H. Rieke and F. Melia (Steward Observatory)
66.04 Pulsars from Starbursts at the Galactic Center
D. Hartmann (Clemson University)
66.05 Starburst(s) at the Galactic Center Triggered by Collisions of Giant Molecular Clouds
L. M. Ozernoy (Phys. Dept. and Inst. for Comp. Sci. and Inform., George Mason U.; also Lab. for Astron. and Sol. Phys., NASA/GSFC)
66.06 Production of White Dwarfs, Neutron Stars, and Black Holes During Nuclear Starburst
V. M. Lipunov, L. M. Ozernoy, S. B. Popov, K. A. Postnov and M. E. Prokhorov (Physics Dept. and Inst. for Comp. Sci. and Inform., George Mason U., also NASA/GSFC)

Session 67. Timing in X-Ray Astronomy

Oral, Tuesday, 2:00pm - 3:30pm, Ballroom III (Tucson Convention Center)

67.01 The XTE Mission
J. H. Swank (NASA/GSFC)
67.02 Neutron Stars as Physics Laboratories
F. K. Lamb (U. Illinois)
67.03 X-ray Novae and Black Hole Binaries
R. Remillard (MIT)

Session 68. Starbursts and Interacting Galaxies

Oral, Tuesday, 2:00pm - 3:30pm, Mohave (Tucson Convention Center)

68.01D Gas Dynamics and Globular Cluster Formation in Interacting Galaxies
J. English (MSSSO)
68.02 Merger-Induced Starbursts and Ultraluminous Infrared Galaxies
J. C. Mihos and L. Hernquist (UC Santa Cruz)
68.03 Molecular Gas in Luminous Infrared Galaxies
P. M. Bryant and N. Z. Scoville (Caltech)
68.04 Near Infrared Spectra of the Nucleus of Arp 220:Spatially Resolved CO Absorption in the Inner Kiloparsec
L. Armus, G. Neugebauer, K. Matthews and B. T. Soifer (Caltech)
68.05D Near-Infrared Spectroscopy of Luminous Infrared Galaxies
J. D. Goldader (University of Hawaii)
68.06 HST Imaging Observations of the ``Cartwheel'' Ring Galaxy
K. D. Borne, R. Lucas (STScI), P. Appleton, C. Struck (Iowa State), A. Schultz (CSC) and L. Spight (UNLV)
68.07 HST, UIT, and Groundbased Imaging of the Giant HII Regions in the Pinwheel Galaxy (Messier 33)
W. H. Waller (HSTX, NASA/GSFC/LASP), P. W. Hodge (U. Washington) and T. P. Stecher (NASA/GSFC/LASP)

Session 69. Remote Observing

Oral, Tuesday, 2:00pm - 3:30pm, Maricopa (Tucson Convention Center)

69.01 Low Bandwidth Techniques for Remote Observing
J. W. Percival (Space Astronomy Laboratory)
69.02 Remote Observing for the Small Observatory
A. Henden (U.S. Naval Observatory Flagstaff)
69.03 Remote Observing with Robotic Telescopes on Mt. Hopkins
G. W. Henry (Tennessee State University)
69.04 The MicroObservatory Net
K. Brecher (Boston U.) and P. Sadler (CfA)
69.05 Successful Operation of Remote Telescopes for Education and Research
C. Pennypacker, S. Deustua, S. Perlmutter, G. Goldhaber and E. Arsem (Lawrence Berkeley Lab)
69.06 IUE Remote Observing System
A. G. Michalitsianos (NASA-GSFC Lab. for Astron.\char38 Solar Phys.), R. E. Pitts, A. Groebner and R. Arquilla (Computer Sciences Corp. (CSC) - IUE Observatory)

Session 70. Active Galaxies and Intergalactic Medium

Oral, Tuesday, 2:00pm - 3:30pm, Greenlee (Tucson Convention Center)

70.01D X-ray--luminous, IR-selected H II Galaxies and the X-ray Background
E. C. Moran (Columbia U. and IGPP/LLNL)
70.02 The Ly$\alpha$ Forest at Z=2
J. Bechtold (Steward Observatory, University of Arizona), A. Dobrzycki (CFA), J. Scott, C. Foltz and M. Lesser (Steward Observatory, University of Arizona)
70.03 Frequency of Oxygen VI in Intervening QSO Absorption Systems
S. Burles and D. Tytler (CASS, University of California, San Diego)
70.04 Deuterium and Metals at z=3.57 towards QSO 1937--1009
D. Tytler and X. Fan (CASS, University of California, San Diego)
70.05 CO absorption and emission in the damped Ly$\alpha$ absorption line system toward PKS 0528-250
J. Ge, J. Bechtold, J. H. Black and C. E. Walker (Steward Observatory, Univ. of Arizona)
70.06D Understanding the UV Alignments of Low and High Redshift Radio Galaxies
A. Dey, H. Spinrad (University of California, Berkeley) and W. van Breugel (IGPP/LLNL)

Session 71. Pollution

Oral, Tuesday, 2:00pm - 3:30pm, Graham (Tucson Convention Center)

71.01 Status and the Future of Programs to Help Control Light Pollution
D.L. Crawford (NOAO)
71.02 New ITU ``Handbook on Radio Astronomy'' Gives Support to Protection Efforts
M. M. Davis and C. Chairman (Arecibo Observatory)

Session 72. Invited Talks: Impacts and Vulcanism

Invited, Tuesday, 3:40pm - 5:10pm, Ballroom I (Tucson Convention Center)

72.01 The Spectacular Swan Song of Shoemaker-Levy 9
H. B. Hammel (MIT)
72.02 Clementine at the Moon
E. M. Shoemaker (Lowell Observatory)