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AAS Electronic Announcement #96 -- MAY 2001

[Mailed from aas.org at 4:25pm 9 MAY 2001]

CONTENTS

  1. PASADENA HOTELS ADD ENERGY CHARGE
  2. TRITON WATCH SOLICITS OBSERVERS
  3. SOFIA NEWS
  4. IR SOURCE PHOTOMETRY FROM COBE DIRBE DATA

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1. PASADENA HOTELS ADD ENERGY CHARGE

We have just been informed that there will be a $3.00/room per night energy charge added to the negotiated rate at all the hotels in Pasadena.

For more information on the 198th AAS Meeting, 3-7 June 2001, in Pasadena, California see:

http://www.aas.org/meetings/aas198/program/

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2. TRITON WATCH SOLICITS OBSERVERS

The Triton Watch project is preparing for this year's Neptune/Triton observing season and is soliciting observers to join the effort. The primary goal of the campaign is to monitor the photometric behavior of Triton, and to provide a quick and robust mechanism to follow up observed color changes. You can obtain more information about the Triton Watch project and sign up at:

http://www.boulder.swri.edu/TritonWatch

If you have questions, you can contact the project administrators (Alan Stern, Joel Parker, Dirk Terrell) at mailto:TritonWatch@boulder.swri.edu

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3. SOFIA NEWS

Those wishing to stay current on the progress of SOFIA may subscribe to an electronic news note by emailing mailto:SOFIA@usra.edu.

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4. IR SOURCE PHOTOMETRY FROM COBE DIRBE DATA

Flux densities of unresolved sources observed by the COBE Diffuse Infrared Background Experiment (DIRBE) can readily be extracted from the DIRBE time-ordered data thanks to a new research tool located on the web at

http://cobe.gsfc.nasa.gov/cio/browser.html

The DIRBE surveyed the sky with a 0.7 degree beam in ten wavelength bands ranging from 1.25 to 240 microns. For reasons given in the DIRBE Explanatory Supplement one must use the time-ordered data, not the DIRBE sky maps, to obtain accurate point source photometry. Users of the new tool provide source coordinates and can request source crossing data for periods ranging from one day to the entire
ten-month cryogenic mission (December 1989 to September 1990). The tool returns photometric data and error estimates for individual source scans, as well as intensity plots that can be used to discern whether nearby confusing sources are present along a particular scan direction. Sample light curves for Sirius and Mira can be viewed at the URL given above.

Please direct questions or comments to Dave Leisawitz, mailto:leisawitz@stars.gsfc.nasa.gov (301-286-0807).

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An AAS Electronic Announcement is mailed to all members around the 10th of each month. Included are important items that do not fit into the schedule of the AAS Newsletter. Because of volume, Meeting Announcements are generally not included.

Items for possible inclusion in this announcement series should be sent to mailto:johnson@aas.org. Keep announcement short and refer readers to sources of additional information.

Address corrections should be sent to mailto:address@aas.org.

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