Spectral feature of 31 December 1981 gamma-ray burst not confirmed

Details Spectral feature of 31 December 1981 gamma-ray burst not confirmed Spectral feature of 31 December 1981 gamma-ray burst not confirmed

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.311..360n&link_type=abstract

Nature (ISSN 0028-0836), vol. 311, Sept. 27, 1984, p. 360-362. Sponsorship: Bundesminsterium für Forschung und Technologie.

Computer Science

14

Bremsstrahlung, Gamma Ray Bursts, Gamma Ray Spectra, Neutron Stars, Positron Annihilation, Red Shift, Emission Spectra, Gamma Ray Spectrometers, Histograms, Monte Carlo Method, Solar Maximum Mission

Scientific paper

The emission lines reported at 400 - 500 keV in the spectra of γ-ray bursts have been interpreted as redshifted positron annihilation lines, and, together with the lower-energy cyclotron lines, are the most direct evidence that bursts occur on the surface of neutron stars. So far, the most significant detections of emission features have been reported from the Konus experiments on Veneras 11-14. Here the authors compare measurements of a γ-ray burst at 01:37 UT on 31 December 1981, using the SMM γ-ray spectrometer with those made by the Konus instruments. The SMM spectra exhibit no evidence for the presence of emission features reported by the Konus group.

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