Workshop on diffuse emission and LAT source catalog at SLAC

Last updated:  25 May 2005 23:33

Monday, May 23, 2005: General session. Orange Room. Each talk 20' by default + 10' discussion

Possibly of interest:  Public lecture "The Assasin of Relativity" by Peter Galison at 8:00 pm on the Stanford campus

Tuesday, May 24, 2005: Splinter meetings (2 in parallel).

The idea is to discuss issues around precise cases, possibly testing ideas and running software on the spot. The goal is to identify the way forward and how the work may be shared. In each case, define where we want to stand for the DC2 milestone, now expected to be at the end of this year. In the framework of the LAT science groups related to this meeting ("Catalogs" and "Diffuse emission"), identify work worth publishing before launch (August 2007).

• Source detection and catalog pipeline architecture (9:30 - 12:30). Moderator: J.-L. Starck (Green Room, building 40, room R319)  summary of session
  • Relative merits of the algorithms under consideration
  • Review of selection criteria and time scale for selection
  • '3D' methods (map + energy, map + time)
  • Inclusion of a 'source finder' tool into the Science Analysis Environment ?
  • Pipeline script, interfaces between the successive stages
  • Operational issues (scheduler, database, computational requirements)

   

• Overall distribution of gas and light in the Galaxy (9:30 - 12:30). Moderator: S. Digel (GLAST III Conf. Room, building 234) summary of session
  • Summary of the conference on the Galactic Center at UCSB (Elliott Bloom), and modeling the Galactic center for GLAST
  • the Interstellar Radiation Field
  • Distance estimates for the gas (rotation curve, resolving the ambiguity)
  • Existing CO and HI surveys, other data which would be useful and strategies for obtaining it
  • Optical depth corrections for cold gas
  • 'Dark' molecular gas (not seen in CO)
  • Ionized gas

   

• Source identification and characterization, catalog contents (13:30 - 16:30). Moderator: S. Digel (Green Room, building 40, room R319) summary of session
  • Relevant external catalogs for identification, potential populations
  • Identification criteria, beyond positional coincidence
  • Making optimal use of the multi wavelength information
  • What to include in the catalog for each source (for DC2 and for real): which spectral information, which light curve(s)

   

• Using GALPROP for GLAST (13:30 - 15:00). Moderator: I. Moskalenko (GLAST III Conf. Room, building 234) summary of session
  • Updates we need for the LAT interstellar emission model
  • Obtaining and running GALPROP, or obtaining precomputed GALPROP runs

   

• Extragalactic diffuse emission (15:00 - 16:30). Moderator: J. Chiang (GLAST III Conf. Room, building 234) summary of session
  • Simulation strategies for the weak source contribution (from a luminosity function and redshift distribution)
  • Analysis strategies

17:00: Short report by the moderators (10' each long splinter, 5' each short splinter) (GLAST III Conf. Room, building 234)