LAT Onboard Science: Gamma-Ray Burst Identification

Journal Article · Thu Jul 12 04:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2757449· OSTI ID:21067312

Kuehn, Frederick; Hughes, Richard; Smith, Patrick; Winer, Brian ^[1]; Bonnell, Jerry ^[2]; Norris, Jay ^[3]; Ritz, Steven ^[2]; Russell, James ^[4]

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1. Ohio State University (United States)
2. NASA Goddard Space Flight Center (United States)
3. University of Denver (United States)
4. Stanford Linear Accelerator Center (United States)

The main goal of the Large Area Telescope (LAT) onboard science program is to provide quick identification and localization of Gamma Ray Bursts (GRB) onboard the LAT for follow-up observations by other observatories. The GRB identification and localization algorithm will provide celestial coordinates with an error region that will be distributed via the Gamma ray burst Coordinate Network (GCN). We present results that show our sensitivity to bursts as characterized using Monte Carlo simulations of the GLAST observatory. We describe and characterize the method of onboard track determination and the GRB identification and localization algorithm. Onboard track determination is considerably different than in the on-ground case, resulting in a substantially altered point spread function. The algorithm contains tunable parameters which may be adjusted after launch when real bursts characteristics at very high energies have been identified.

• OSTI ID: 21067312
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 921; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALGORITHMS
COMPUTERIZED SIMULATION
COORDINATES
COSMIC GAMMA BURSTS
COSMIC GAMMA SOURCES
COSMIC PHOTONS
GAMMA DETECTION
MONTE CARLO METHOD
PARTICLE IDENTIFICATION
PARTICLE TRACKS
PHOTON EMISSION
SENSITIVITY