Development of A New Background Reduction Method for WXM/HETE-2 and Its Application for Bright GRB Spectra
Creators
- 1. Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 229-8558 (Japan)
- 2. Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)
- 3. Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551 (Japan)
- 4. ISAS/JAXA, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510 (Japan)
- 5. National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588 (Japan)
- 6. Center for Space Research, MIT, 77 Vassar Street, Cambridge, MA 02139-4307 (United States)
Description
HETE-2 detected gamma-ray bursts (GRBs) since its launch on 9 October 2000. For spectral analyses using data of WXM on-board HETE-2, background spectra are conventionally obtained with time regions before and/or after prompt emission. In some cases, the background spectra change during the prompt emission and/or the downlink trouble causes a loss of data around the prompt emission. If this is the case, the problem seems to lie in the fact that the conventional method cannot obtain correct background spectra. To make more appropriate background spectra, we develop a new analysis method using mask patterns of the WXM. The background spectra are estimated with shaded regions by the WXM mask pattern using the prompt emission data. Our new method might obtain a reliable result for a spectrum of GRB 030329. In this paper, we introduce our new analysis method and show a preliminary spectral result
Additional details
Identifiers
- DOI
- 10.1063/1.2943438;
Publishing Information
- Journal Title
- AIP Conference Proceedings
- Journal Volume
- 1000
- Journal Issue
- 1
- Journal Page Range
- p. 174-177
- ISSN
- 0094-243X
- CODEN
- APCPCS
Conference
- Title
- Santa Fe conference on gamma-ray bursts 2007
- Dates
- 5-9 Nov 2007
- Place
- Santa Fe, NM (United States)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40017840
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COSMIC GAMMA BURSTS; COSMIC GAMMA SOURCES; COSMIC PHOTONS; DATA ANALYSIS; GAMMA ASTRONOMY; GAMMA DETECTION; GAMMA SPECTRA; LUMINESCENCE; MEASURING METHODS; PHOTON EMISSION
- Descriptors DEC
- ASTRONOMY; BOSONS; COSMIC RADIATION; COSMIC RAY SOURCES; DETECTION; ELEMENTARY PARTICLES; EMISSION; IONIZING RADIATIONS; MASSLESS PARTICLES; PHOTON EMISSION; PHOTONS; PRIMARY COSMIC RADIATION; RADIATION DETECTION; RADIATIONS; SPECTRA
Optional Information
- Notes
- (c) 2008 American Institute of Physics