LAT Onboard Science: Gamma-Ray Burst Identification

Conference · Mon Oct 15 04:00:00 EDT 2007 · AIP Conf.Proc.921:556-557,2007

DOI:https://doi.org/10.1063/1.2757449· OSTI ID:918036

Kuhn, Frederick; Bonnell, Jerry; Hughes, Richard; Norris, Jay; Ritz, Steven; Russell, James; Smith, Patrick; Winer, Brian

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 onground 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.

• Research Organization: Stanford Linear Accelerator Center (SLAC)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 918036
• Report Number(s): SLAC-PUB-12888
• Conference Information: Journal Name: AIP Conf.Proc.921:556-557,2007 Journal Volume: 921
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
ALGORITHMS
COSMIC GAMMA BURSTS
DETECTION
Instrumentation
INST
MONTE CARLO METHOD
SENSITIVITY
TELESCOPES