3 keV to 2 MeV observations of four gamma-ray bursts
Journal Article
·
· Astrophys. J.; (United States)
Four cataloged ..gamma..-ray bursts that occurred between 1979 March 7 and 1979 July 31 have been observed over the 3-10 keV range by a joint Naval Research Laboratory/Los Alamos experiment on the Air Force P78-1 satellite. The bursts also were well observed above approx.100 keV by members of the interplanetary network. Additionally, the 1979 July 31 event (GB 790731) was observed from 25 keV to 2 MeV by the University of California at Berkeley/Los Alamos experiment on the third International Sun-Earth Explorer (ISEE 3). In this paper we present hardness ratios, X-ray/..gamma..-ray luminosity ratios, time histories, and the GB 790731 spectrum. The most significant results presented here are summarized in the seven points listed below. The first five of these are derived mainly from our new 3-10 keV data, while points 6 and 7 relate to higher energy work similar to what has been done by others. (1) Gamma-ray bursters can emit fairly strongly at X-ray energies near the time of the ..gamma..-ray burst with L/sub X//L/sub ..gamma../approx.0.02 (L/sub X/*10/sup 37/ ergs s/sup -1/, 3-10 keV, assuming a distance of 1 kpc). (2) The centroid of the X-ray emission generally lags the ..gamma..-ray centroid, but there also is evidence for one or more types of X-ray precursor activity.
- Research Organization:
- Los Alamos National Laboratory
- OSTI ID:
- 6055542
- Journal Information:
- Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 286:2; ISSN ASJOA
- Country of Publication:
- United States
- Language:
- English
Similar Records
3-10 keV and 0. 1 to 2 MeV observations of four gamma-ray bursts
3-10 keV and 0. 1 to 2 MeV observations of four gamma-ray bursts
3-10 keV and 0. 1- to 2-MeV observations of four gamma-ray bursts
Journal Article
·
Sat May 26 00:00:00 EDT 1984
· AIP Conf. Proc.; (United States)
·
OSTI ID:6238885
3-10 keV and 0. 1 to 2 MeV observations of four gamma-ray bursts
Journal Article
·
Sat May 26 00:00:00 EDT 1984
· AIP Conf. Proc.; (United States)
·
OSTI ID:6390045
3-10 keV and 0. 1- to 2-MeV observations of four gamma-ray bursts
Conference
·
Fri Dec 31 23:00:00 EST 1982
·
OSTI ID:5651249
Related Subjects
640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC GAMMA BURSTS
COSMIC GAMMA SOURCES
COSMIC RADIATION
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
GAMMA SPECTRA
IONIZING RADIATIONS
LUMINOSITY
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PRIMARY COSMIC RADIATION
RADIATIONS
SPECTRA
X-RAY SPECTRA
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC GAMMA BURSTS
COSMIC GAMMA SOURCES
COSMIC RADIATION
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
GAMMA SPECTRA
IONIZING RADIATIONS
LUMINOSITY
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PRIMARY COSMIC RADIATION
RADIATIONS
SPECTRA
X-RAY SPECTRA