GRB980923; a Burst with the MeV-spectral Component of GRB941017

Journal Article · Mon May 25 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3155934· OSTI ID:21304965

Gonzalez, M M; Sacahui, J R ^[1]; Dingus, B L ^[2]

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1. Instituto de Astronomia, Universidad Nacional Autonoma de Mexico, D. F., Mexico, 04510 (Mexico)
2. Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, N. M. 87545 (United States)

A detailed joint analysis of BATSE-LAD and EGRET-TASC data yielded to the discovery of an anomalous MeV-component in the spectra of GRB941017. The detailed description and time evolution, as well as the lack of other GRBs with the MeV-component have made difficult the description of such MeV-component. Previous analyses by Kaneko and Gonzalez, showed that the spectrum of GRB980923 beyond 10 MeV is not consistent with a smooth continuation of the spectra at keV-energies along the whole burst. We have deeply analyzed GRB980923 and found the presence of a MeV-component with similar spectral features to the one found in GRB941017. In this work we compare GRB941017 and GRB980923.

• OSTI ID: 21304965
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1133; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
99 GENERAL AND MISCELLANEOUS
COMPARATIVE EVALUATIONS
COSMIC GAMMA BURSTS
COSMIC GAMMA SOURCES
COSMIC PHOTONS
DATA ANALYSIS
GAMMA ASTRONOMY
GAMMA DETECTION
GAMMA SPECTRA
KEV RANGE
MEV RANGE
SUPERNOVA REMNANTS
TELESCOPE COUNTERS