An absorption feature in the spectrum of a gamma ray burst on 25 March 1978
Abstract
The High Energy X-ray and Low Energy Gamma Ray Experiment on HEAO-1 detected a gamma ray burst on March 25, 1978. The main peak of the event lasted 10 seconds, while less intense emission was observed for approximately 100 seconds. The burst spectrum shows an apparent absorption feature at 55 +/- 5 keV with an equivalent width of 13 +/- 3 keV, values commensurate with those reported for bursts recorded by the KONUS experiment. The integrated fluence between 30 keV and 6.1 Mev was 0.000015 ergs/sq cm. The detection syste has localized the burst source to within a degree of RA = 237.2 deg and Dec. = 76.4 deg.
- Publication:
-
Accreting Neutron Stars
- Pub Date:
- October 1982
- Bibcode:
- 1982ans..conf..213H
- Keywords:
-
- Absorption Spectra;
- Gamma Ray Bursts;
- Gamma Ray Spectra;
- Cyclotron Radiation;
- Heao 1;
- Neutron Stars;
- Optical Measuring Instruments;
- Spectrum Analysis;
- Space Radiation