Wednesday Titles

Program overview


Session 31. Astronomical Education

Display, Wednesday, 9:20am - 6:30pm, South Exhibit Hall

31.01 The PC Redshift Survey and Other Adventures in Introductory Astronomy
L. A. Marschall (Gettysburg College), P. Stine (Bloomsburg U.), G. A. Snyder, M. B. Hayden, M. K. Luehrmann, R. F. Good, P. R. Cooper (Gettysburg College), L. A. Marschall (Gettysburg College), P. Stine (Bloomsburg U.), G. A. Snyder, M. B. Hayden, M. K. Luehrmann, R. F. Good and P. R. Cooper (Gettysburg College)
31.02 HUBBLE VISION: A Planetarium Show About Hubble Space Telescope
C. C. Petersen (Loch Ness Productions)
31.03 Minorities in Astronomy
J. S. Price (Bentley College)
31.04 The Shapley Program: 1980 - 1995
A.G. Davis Philip (Unions Col.) and K. D. Philip (ISO)
31.05 Update on Light Pollution Control
D. L. Crawford (NOAO)

Session 32. Astrometry

Display, Wednesday, 9:20am - 6:30pm, South Exhibit Hall

32.01 On the Precision of Narrow Field Astrometry at the Allegheny Observatory
A. S. Hale and G. D. Gatewood (Univ of Pittsburgh)
32.02 Preliminary Map Star Catalog
T. Persinger, G. Gatewood (Univ. of Pittsburgh) and M. Castelaz (East Tennessee State Univ.)
32.03 Preliminary Results of the U.S. Naval Observatory Twin Astrographic Catalog (TAC) Plate Reductions
M. I. Zacharias (USRA) and G. G. Douglass (USNO)

Session 33. Solar System

Display, Wednesday, 9:20am - 6:30pm, South Exhibit Hall

33.01 Spectroscopy of the CO J=1-0 and J=2-1 Transitions in Comet P/Schwassmann-Wachmann 1
R. A. Graham, Jr. and M. Womack (Pennsylvania State Univ/Behrend College)
33.02 Edge waves and librations in the Uranus $\epsilon$ ring
R. G. French (Wellesley C.) and P. D. Nicholson (Cornell U.)
33.03 The Ultraviolet Spectrum of the Jovian Dayglow
W. Liu and A. Dalgarno (CfA)
33.04 Jeans Instability Criteria and the Formation of Comet Shoemaker-Levy 9 Fragments
J. M. Hahn and T. W. Rettig (University of Notre Dame)
33.05 Near-Infrared Spectroscopy of the R Impact Site of Comet Shoemaker-Levy 9
R. F. Knacke, S. B. Fajardo-Acosta (Penn Sate Erie), T. R. Geballe (JAC) and K. S. Noll (STScI)
33.06 Planetary Systems: Crossing the Jupiter Threshold
G. W. Marcy and R. P. Butler (U.C. Berkeley)

Session 34. Atomic and Molecular Astrophysics

Display, Wednesday, 9:20am - 6:30pm, South Exhibit Hall

34.01 The Effects of OH Collision Rates on the Production of OH MASERS
E. Gauthier and P. Lockett (Centre College//600 W. Walnut//Danville,KY 40422)
34.02 Analytic fits for photoionization cross sections of atoms and ions
D. A. Verner, G. J. Ferland, K. T. Korista (University of Kentucky, Lexington, KY) and D. G. Yakovlev (Ioffe Institute of Physics and Technology, St. Petersburg, Russia)

Session 35. ISM: Abundances and Dust

Display, Wednesday, 9:20am - 6:30pm, South Exhibit Hall

35.01 The Interstellar $^7$Li/$^6$Li Isotope Ratio Toward $\zeta$ Oph
I. Hawkins, I. Crawford, M. Barlow, F. Diego, K. McDonald and J. Sommers (Eureka Scientific, Inc.; Univ. College, London; Univ. College, London; Univ. College, London; Eureka Scientific, Inc.; Eureka Scientific, Inc.)
35.02 Interstellar Ti II Absorption Toward the Magellanic Clouds
K. C. Roth, J. C. Blades (STScI) and C. E. Albert (U.S. Naval Academy)
35.03 Krypton
J. A. Cardelli (Villanova Univ.) and D. M. Meyer (Northwestern Univ.)
35.04 Highly Ionized Gas toward $\xi$ Persei
L. M. Haffner, B. D. Savage (U. Wisconsin---Madison) and K. R. Sembach (MIT)
35.05 Depletions of Fe, Si and P in the Neutral Interstellar Medium Determined from IMAPS Spectra
U. J. Sofia (NRC, NASA/GSFC) and C. L. Joseph (Univ. of Wisc. SAL)
35.06 Observations of Interstellar Clouds in the Galactic Halo
E. L. Fitzpatrick (Princeton University Observatory)
35.07 Ultraviolet Observations toward HD 135485: Searching for Evidence of a Proposed High Velocity Cloud
L. Danly, Y. P. Lee (ST ScI) and C. E. Albert (US Naval Academy)
35.08 The Hydrogen Hole at the North Galactic Pole
T. R. Ayres (CASA/U.Colorado), J. L. Linsky (JILA/U.Colorado and NIST) and A. Diplas (CASS/UCSD)
35.09 A Strong-Line Method of Determining Nitrogen Abundances
T. Thurston and R. B. C. Henry (University of Oklahoma)
35.10 Multiwavelength Mapping in the Pleiades Region
S. J. Gibson and K. H. Nordsieck (University of Wisconsin-Madison)
35.11 Radiative Transfer in Galactic Environments with Clumpy Dust
K. D. Gordon and A. N. Witt (U. of Toledo)
35.12 An Investigation of Longitudinal Dependence of the Temperature of the Dust in the Local Interstellar Medium
D. R. Ciardi, R. W. Canterna (University of Wyoming), D. R. Ciardi and R. W. Canterna (University of Wyoming)
35.13 Circumstellar Gas Around Proto-Planetary System Candidates
K. -P. Cheng (California State U./Fullerton), J. E. Neff (Penn State U.) and F. C. Bruhweiler (Catholic U.)
35.14 Circumstellar Dust Formation around the Mira-Variable NML Tauri Determined by 11 Micron Spatial Interferometry
D. D. S. Hale (Univ. of Pittsburgh), M. Bester, W. C. Danchi, C. G. Degiacomi and C. H. Townes (Univ. of California, Berkeley)
35.15 The Unusual Circumstellar Environment of the Evolved Star, U Equ
C. Barnbaum (NRAO), M. Omont (IAP) and M. Morris (UCLA)
35.16 A Model of the Diffuse Ultraviolet Radiation Field
J. Murthy and R. C. Henry (JHU)

Session 36. ISM: Structure, Molecular Clouds

Display, Wednesday, 9:20am - 6:30pm, South Exhibit Hall

36.01 Single-dish and Interferometer Observations of CH$_3$CN Towards the Two Ultracompact H{\sc ii} regions G10.47+0.03 and G31.41+0.31
L. Olmi, R. Cesaroni and C. M. Walmsley (Cornell University, Arcetri Observatory, Cologne University)
36.02 BIMA Array CS $J$=2$\rightarrow$1 Observations of Sgr B2
D. M. Mehringer (U. of Illinois)
36.03 Hydrodynamics of GMC Complexes Formation
I. G. Kolesnik (Central Astronomocal Observatory of the Ukrainian Academy of Sciences, Kiyev \char38\ New York City, 144-80 Sanford ave., 4E, Flushing, NY 11355)
36.04 Millimeter Observations of Molecular Clouds in the Outer Galaxy
C. Lehman (RPI)
36.05 Turbulent Fluctuations in the Interstellar Plasma Density and Magnetic Field
A. Minter and S. Spangler (University of Iowa)
36.06 Faraday Rotation Observations of the Extragalactic Radio Source 1741-038 During an Extreme Scattering Event
A. W. Clegg (Naval Research Laboratory), A. L. Fey (U.S. Naval Observatory) and R. L. Fiedler (Naval Research Laboratory)
36.07 VLBI Observations of Nine ESE Sources: Milliarcsecond Scale Structure
A. Fey (USNO), A. Clegg and R. Fiedler (NRL)
36.08 Refractive Interstellar Scintillation of the Pulsar PSR 1642-03
T. V. Smirnova, E. Myers, D. R. Stinebring (Oberlin) and R. S. Foster (NRL)
36.09 Five Years of Pulsar Flux Monitoring: Probing the Inhomogeneity Spectrum of the Interstellar Medium
D. R. Stinebring, T. V. Smirnova and J. Hovis (Oberlin)
36.10 Structure in the Diffuse X-ray Background Along the Galactic Plane
S. Park, J. P. Finley, R. Srinivasan (Purdue) and S. Snowden (NASA/GSFC)
36.11 An Optical Survey of Large Interstellar Structures
Y. P. Lee, L. Danly (ST ScI), C. Sneden, D. Hiltgen (U. Texas -- Austin), C. E. Albert (US Naval Academy), J. Krick (Baltimore City College H.S.), H. Baldwin and E. Jackson (Friends H.S. of Baltimore)
36.12 GS34-6+65: A Large Galactic Supershell Originating in an Active Star Formation Region and Extending to the Halo
W. Maciejewski (U. Wisconsin---Madison), E. M. Murphy, F. J. Lockman (NRAO) and B. D. Savage (U. Wisconsin---Madison)

Session 37. Supernovae and their Remnants

Display, Wednesday, 9:20am - 6:30pm, South Exhibit Hall

37.01 Supernova CCD Photometry: Reduction Methods and Light Curves
C. Y. Peng, S. D. Van Dyk, R. R. Treffers, Y. B. Paik, A. V. Filippenko (UC Berkeley) and M. W. Richmond (Princeton)
37.02 Photometry of Type Ia Supernovae at Van Vleck Observatory
W. Herbst and A. S. Billeb (Wesleyan U.)
37.03 A Central Stellar Remnant in Puppis A
C. M. Becker (MIT), R. Petre (GSFC) and P. F. Winkler (Middlebury College)
37.04 Infrared Spectra of Supernovae
P. M. Garnavich (CfA)
37.05 Proper Motions in the SNR RCW86 and the Guest Star of 185AD
K. W. Kamper (DDO), S. van den Bergh (DAO) and B. Westerlund (Uppsala)
37.06 On the Hot Gas Fraction of Supernova Remnants
U. Hellsten (NBI) and J. Sommer-Larsen (TAC)
37.07 Iron and Nickel Abundances in H II Regions and Supernova Remnants
M. A. Bautista and A. K. Pradhan (Department of Astronomy, The Ohio State University)

Session 38. Planetary Nebulae and Novae

Display, Wednesday, 9:20am - 6:30pm, South Exhibit Hall

38.01 A Catalogue of Northern extended Planetary Nebulae
A. Manchado, M. A. Guerrero (IAC), L. Stanghellini (Osservatorio Astronomico di Bologna) and M. Serra-Ricart (IAC)
38.02 Effect of Ambient Wind Velocity on the Shaping of Planetary Nebulae
V. V. Dwarkadas, R. A. Chevalier (UVa) and J. Blondin (NCSU)
38.03 HST Observations and Related Models of Cometary Knots in the Helix Nebula
K. Patrick and C. R. O'Dell (Rice University)
38.04 CCD narrowband photometry of the Helix Nebula (NGC 7293)
J. Papamastorakis, K. M. Xilouris and E. V. Palailogou (Arecibo Observatory, University of Crete, Greece, Foundation for Research and Technology, Greece)
38.05 3-13 um Spectroscopy of Nova Cassiopeiae 1993
D. K. Lynch (The Aerospace Corp.)

Session 39. Spiral, Dwarf and Irregular Galaxies

Display, Wednesday, 9:20am - 6:30pm, South Exhibit Hall

39.01 An Atlas of Dwarf Galaxies in the M 81 Group
M. Mateo (University of Michigan)
39.02 The Star Formation History of the Carina Dwarf Spheroidal Galaxy
D. Hurley-Keller, M. Mateo (Univ. of Michigan) and J. Nemec (Dominion Astrophysical Observatory)
39.03 HST Imagery and Spectroscopy of the IZw18 System
R. J. Dufour (Rice U.), G. A. Shields (U. Texas), D. R. Garnett and E. D. Skillman (U. Minnesota)
39.04 The Stellar Populations in Blue Compact Dwarf Galaxies
D. L. Sudarsky and J. J. Salzer (Wesleyan University)
39.05 Search for Variables in the Leo II Dwarf Spheroidal
B. Canzian, A. Henden (USRA) and H. Harris (U.S. Naval Observatory)
39.06 Hubble Space Telescope Planetary Camera Observations of the Stellar Populations near the Nucleus of M33
K. J. Mighell (Columbia University) and R. M. Rich (Columbia University)
39.07 Chemical Abundances in Giant LSB Disk Galaxies
T. E. Pickering and C. D. Impey (Steward Observatory)
39.08 High Resolution X-ray Image of the Sombrero Galaxy
J. Juda and G. Fabbiano (SAO)
39.09 Using Tidal Tails to Probe Dark Matter Halos
C. Mihos, J. Dubinski and L. Hernquist (UC Santa Cruz)
39.10 Gravitational Instabilities in Tidally-Agitated Gas Produce $10^8 M_{\sun}$ Clouds in an Encounter Between NGC 2535 and NGC 2536
M. Kaufman (Ohio St. U), E. Brinks (NRAO), B. G. Elmegreen (IBM), D. M. Elmegreen (Vassar), C. Struck (Iowa St. U), M. Thomasson (Onsala) and M. Klari\'c (Midland Tech)

Session 40. Starburst Galaxies

Display, Wednesday, 9:20am - 6:30pm, South Exhibit Hall

40.01 IUE Spectra of Selected Ring Galaxies
A. B. Schultz, M. Kochte (CSC/STScI), L. D. Spight (UNLV), K. Borne (STScI), M. A. DiSanti (USRA/GSFC), M. Rodrigue and T. Colegrove (UNR)
40.02 The Power Source of Very Luminous Galaxies
L. M. Shier (Naval Research Lab), M. J. Rieke and G. H. Rieke (Steward Observatory)
40.03 HST Explores the Explosively Starbursting ``Cartwheel'' Ring Galaxy
K. D. Borne, R. Lucas (STScI), P. Appleton, C. Struck (Iowa State), A. Schultz (CSC) and L. Spight (UNLV)
40.04 Near--Infrared Imaging of the Starburst Ring in UGC12815
D. A. Smith (NRC/NASA/GSFC/Cornell U.), T. Herter, M. P. Haynes (Cornell U.) and S. G. Neff (NASA/GSFC/LASP)

Session 41. The Status of Large Telescope Projects, Instrumentation and Plans for Large Science Programs in the Areas of Wide-Field Surveys - I

Oral, Wednesday, 8:30 - 12:30pm, Allegheny I and II

41.01 Scientific Performance of the Keck Telescope
J. S. Miller (Lick Observatory)
41.02 The Very Large Telescope Project
M. Tarenghi (European Southern Observatory)
41.03 The Large Binocular Telescope Project
J. M. Hill (University of Arizona)
41.04 The Gemini 8-Meter Telescopes Project
T. A. Boroson (NOAO/USGP)
41.05 The Magellan Project
S. A. Shectman (Carnegie Observatories)
41.06 Toward First Light on the Magnum Mirror Telescope
F. H. Chaffee and D. Fabricant (MMT Observatory and Smithsonian Astrophysical Observatory)

Session 42. Metallicity in the Near/Active Galactic Nuclear Environment - I

Oral, Wednesday, 8:30am - 12:30pm, Allegheny III

42.01 Chemical Abundances in Active Galactic Nuclei
G. A. Shields (Univ Tx Austin)
42.02 Anomalous star formation and metal enrichment in the central parsec of a quasar
P. Artymowicz (Stockholm U.), D. N. C. Lin (UCSC) and J. Wampler (ESO)
42.03 Molecular Gas in the Host Galaxies of AGN
R. Barvainis (MIT Haystack Observatory)
42.04 Metallicity of AGN Emission Line Regions -- problems and pitfalls
G. J. Ferland (Univ Ky)
42.05 Comparisons of Abundances Derived from Quasar Emission and Absorption Lines
F. Hamann, E. A. Beaver, E. M. Burbidge, R. D. Cohen, V. Junkkarinen, R. Lyons (CASS/UCSD), T. A. Barlow (Caltech) and J. C. Shields (Steward)
42.06 Galactic Scale Hurricane in NGC 2992
Z. Tsvetanov (JHU), M. Dopita and M. Allen (MSSSO)
42.07 Broad Absorption Line QSOs and Constraints on BAL Gas Abundances
D. Turnshek (University of Pittsburgh)
42.08 A Probable Overabundance of Phosphorus in the Broad Absorption Line Region of the QSO PG 0946+301
V. T. Junkkarinen, E. A. Beaver, E. M. Burbidge, R. D. Cohen, F. Hamann, R. W. Lyons (CASS/UCSD) and T. A. Barlow (Caltech)
42.09 Keck HIRES Observations of Intrinsic QSO Absorption Systems
T. A. Barlow (California Institute of Technology)
42.10 The Chemical Enrichment of Gas in BALQSOs: Rapid Star Formation in the Early History of Galaxies
K. Korista (Univ. of Ky), F. Hamann (UCSD), J. Ferguson (Univ. of Ky) and G. Ferland (Univ. of Ky)

Session 43. Planetariums and Science Centers in Teaching Astronomy

Oral, Wednesday, 8:30am - 12:30pm, Westmoreland

43.01 Research Astronomers and Planetarians: Complementary Communities
D. W. Smith (Bowling Green State U)
43.02 A Relationship Worth Cultivating: Astronomers and Planateria
A. L. Kinney (STScI)
43.03 Your Planetarium: A Friend Indeed; or How to improve the public understanding of Science
M. Ratcliffe (Henry Buhl Jr. Planetarium \char38\ Observatory)
43.04 The Planetarium and the Astronomer (An Overview)
C. C. Petersen (University of Colorado)
43.05 Creating the Public Connection: Real-Time Internet Resources for Museums and Planetaria
R. J. Wyatt (Houston Museum of Natural Science)
43.06 Astronomer and Educator: Friend or Foe?
D. K. Duncan (U. of Chicago and Adler Planetarium) and A. Singel (Adler Planetarium)

Session 44. The Status of Large Telescope Projects, Instrumentation and Plans for Large Science Programs in the Areas of Wide-Field Surveys - II

Oral, Wednesday, 2:00pm - 5:30pm, Allegheny I and II

44.01 The Hobby-Eberly Telescope; Status and Science Capability
L. W. Ramsey (Pennsylvania State University and Hobby-Eberly Telescope Project)
44.02 The Progress Report of SUBARU Telescope Project
H. Takami (National Astronomical Observatory)
44.03 WIYN: A New Technology Telescope on Kitt Peak
D. R. Silva (NOAO/KPNO)
44.04 The 3.5 Meter at Apache Point Observatory
D. G. York (University of Chicago)
44.05 The Sloan Digital Sky Survey
J. E. Gunn (Princeton University)
44.06 The Anglo-Australian Telescope's 2dF Facility
K. Taylor (Anglo-Australian Observatory)

Session 45. Metallicity in the Near/Active Galactic Nuclear Environment - II

Oral, Wednesday, 2:00pm - 5:30pm, Allegheny III

45.01 Associated Absorption in X-rays
S. Mathur, M. Elvis and B. Wilkes (SAO)
45.02 Metallicity and nature of {$z_{\rm abs} \approx z_{\rm em}$} systems
P. M{\o}ller (STScI, Baltimore. On assignment from the Space Science Department of ESA)
45.03 Associated Absorption in Radio-Loud Quasars
T. Aldcroft (CfA)
45.04 On the Relationship between Galaxies and Absorption Systems in the Vicinities of QSOs
A. Yurchenko, K. M. Lanzetta (State University of New York at Stony Brook) and J. K. Webb (University of New South Wales)
45.05 Abundances in the Associated System of HS 1946+7658
T. M. Tripp (U.Wisconsin-Madison), L. Lu (Caltech) and B. D. Savage (U.Wisconsin-Madison)