Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· On-line Data
· References in the article
· Citations to the Article (1515) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (54)
· NED Objects (38)
· Associated Articles
· Also-Read Articles (Reads History)
· HEP/Spires Information
· Translate This Page
BATSE observations of gamma-ray burst spectra. I - Spectral diversity
Band, D.; Matteson, J.; Ford, L.; Schaefer, B.; Palmer, D.; Teegarden, B.; Cline, T.; Briggs, M.; Paciesas, W.; Pendleton, G.; Fishman, G.; Kouveliotou, C.; Meegan, C.; Wilson, R.; Lestrade, P.
AA(California Univ., La Jolla), AB(California Univ., La Jolla), AC(California Univ., La Jolla), AD(NASA, Goddard Space Flight Center, Greenbelt, MD), AE(NASA, Goddard Space Flight Center, Greenbelt, MD), AF(NASA, Goddard Space Flight Center, Greenbelt, MD), AG(NASA, Goddard Space Flight Center, Greenbelt, MD), AH(Alabama Univ., Huntsville, AL), AI(Alabama Univ., Huntsville, AL), AJ(Alabama Univ., Huntsville, AL)
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 413, no. 1, p. 281-292. (ApJ Homepage)
Publication Date:
Space Radiation
NASA/STI Keywords:
Galactic Halos, Gamma Ray Bursts, Gamma Ray Spectra, Statistical Analysis, Radiation Distribution, Transient Response
Bibliographic Code:


We studied the time-averaged gamma-ray burst spectra accumulated by the spectroscopy detectors of the Burst and Transient Source Experiment. The spectra are described well at low energy by a power-law continuum with an exponential cutoff and by a steeper power law at high energy. However, the spectral parameters vary from burst to burst with no universal values. The break in the spectrum ranges from below 100 keV to more than 1 MeV, but peaks below 200 keV with only a small fraction of the spectra breaking above 400 keV; it is therefore unlikely that a majority of the burst spectra are shaped directly by pair processes, unless bursts originate from a broad redshift range. The correlations among burst parameters do not fulfill the predictions of the cosmological models of burst origin. No correlations with burst morphology or the spatial distribution were found. We demonstrate the importance of using a complete spectral description even if a partial description (e.g., a model without a high-energy tail) is statistically satisfactory.

Associated Articles

Part  1     Part  2     Part  3     Part  4    

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences

More Article Retrieval Options

HELP for Article Retrieval

Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)


Find Similar Abstracts:

Use: Authors
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
arXiv e-prints