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Title: A tool to estimate the Fermi Large Area Telescope background for short-duration observations

Abstract

Here, the proper estimation of the background is a crucial component of data analyses in astrophysics, such as source detection, temporal studies, spectroscopy, and localization. For the case of the Large Area Telescope (LAT) on board the Fermi spacecraft, approaches to estimate the background for short (≲1000 s duration) observations fail if they ignore the strong dependence of the LAT background on the continuously changing observational conditions. We present a (to be) publicly available background-estimation tool created and used by the LAT Collaboration in several analyses of Gamma Ray Bursts. This tool can accurately estimate the expected LAT background for any observational conditions, including, for example, observations with rapid variations of the Fermi spacecraft’s orientation occurring during automatic repointings.

Authors:
 [1]
  1. Univ. Montpellier, Montpellier (France)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1356564
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Astroparticle Physics
Additional Journal Information:
Journal Volume: 48; Journal Issue: C; Journal ID: ISSN 0927-6505
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; gamma ray bursts; space-born observatory; gamma ray astronomy; background estimation

Citation Formats

Vasileiou, Vlasios. A tool to estimate the Fermi Large Area Telescope background for short-duration observations. United States: N. p., 2013. Web. doi:10.1016/j.astropartphys.2013.07.002.
Vasileiou, Vlasios. A tool to estimate the Fermi Large Area Telescope background for short-duration observations. United States. doi:10.1016/j.astropartphys.2013.07.002.
Vasileiou, Vlasios. Thu . "A tool to estimate the Fermi Large Area Telescope background for short-duration observations". United States. doi:10.1016/j.astropartphys.2013.07.002. https://www.osti.gov/servlets/purl/1356564.
@article{osti_1356564,
title = {A tool to estimate the Fermi Large Area Telescope background for short-duration observations},
author = {Vasileiou, Vlasios},
abstractNote = {Here, the proper estimation of the background is a crucial component of data analyses in astrophysics, such as source detection, temporal studies, spectroscopy, and localization. For the case of the Large Area Telescope (LAT) on board the Fermi spacecraft, approaches to estimate the background for short (≲1000 s duration) observations fail if they ignore the strong dependence of the LAT background on the continuously changing observational conditions. We present a (to be) publicly available background-estimation tool created and used by the LAT Collaboration in several analyses of Gamma Ray Bursts. This tool can accurately estimate the expected LAT background for any observational conditions, including, for example, observations with rapid variations of the Fermi spacecraft’s orientation occurring during automatic repointings.},
doi = {10.1016/j.astropartphys.2013.07.002},
journal = {Astroparticle Physics},
number = C,
volume = 48,
place = {United States},
year = {2013},
month = {7}
}

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Cited by: 6 works
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