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

被引：7
|
作者：
Vasileiou, Vlasios [1 ]
机构：
[1] Univ Montpellier 2, CNRS, IN2P3, Lab Univers & Particules Montpellier, Montpellier, France
来源：
ASTROPARTICLE PHYSICS | 2013年 / 48卷
关键词：
Gamma Ray Bursts; Space-born observatory; Gamma ray astronomy; Background estimation; GAMMA-RAY EMISSION; BURST;
D O I：
10.1016/j.astropartphys.2013.07.002
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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 (less than or similar to 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. (c) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：61 / 74
页数：14
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