Fine time structure in the 1979 March 5 gamma ray burst

Details Fine time structure in the 1979 March 5 gamma ray burst Fine time structure in the 1979 March 5 gamma ray burst

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...126..400b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 126, no. 2, Oct. 1983, p. 400-402. Sponsorship: Centre National d'Etudes Spati

Astronomy and Astrophysics

Astrophysics

53

Fine Structure, Gamma Ray Bursts, Neutron Stars, Power Spectra, Prognoz Satellites, Stellar Oscillations, Stellar Rotation, Torsional Vibration, Venera Satellites

Scientific paper

Data on the impulsive phase of the 1979 March 5 gamma ray burst, taken by three identical detectors aboard the Prognoz 7, Venera 11, and Venera 12 spacecraft with 2 ms time resolution, are presented. The first 200 ms of the time history may be described by an exponential decay with time constant of approximately 120 ms up to approximately 100 ms, and time constant of approximately 30 ms thereafter; at low energies, a pulsating component with a period of approximately 23 ms appears. The data could be consistent with torsional vibrations of a neutron star, the rotation of a rapidly spinning neutron star, or oscillations caused by interactions between hot plasma and a magnetic field.

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