SMM hard X-ray observations of the soft gamma-ray repeater 1806-20

Abstract

view Abstract Citations (72) References (15) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS SMM Hard X-Ray Observations of the Soft Gamma-Ray Repeater 1806-20 Kouveliotou, C. ; Norris, J. P. ; Cline, T. L. ; Dennis, B. R. ; Desai, U. D. ; Orwig, L. E. ; Fenimore, E. E. ; Klebesadel, R. W. ; Laros, J. G. ; Atteia, J. -L. ; Boer, M. ; Hurley, K. ; Neil, M. ; Vedrenne, G. ; Kuznetsov, A. V. ; Sunyaev, R. A. ; Terekhov, O. V. Abstract A new type of gamma-ray source has been recently discovered. Six bursts from this source were recorded with the Hard X-Ray Burst Spectrometer on the Solar Maximum Mission during a highly active phase in 1983. High time resolution measurements of one burst show rise and decay times of less than 5 ms, the fastest yet observed from this source. Time profiles of these events are simple, but indicate low-level emission before and after the main peaks. Two transients in the series show no spectral evolution over their durations of fractions of a second. Bursts from soft gamma-ray repeaters (SGRs) appear to form a separate class of events. The characteristic properites of the three known SGRs are briefly reviewed. Publication: The Astrophysical Journal Pub Date: November 1987 DOI: 10.1086/185029 Bibcode: 1987ApJ...322L..21K Keywords: Astronomical Spectroscopy; Gamma Ray Bursts; Solar Maximum Mission; Spaceborne Astronomy; X Ray Spectroscopy; Spatial Distribution; Spectrum Analysis; Temporal Distribution; Temporal Resolution; Astrophysics; GAMMA RAYS: BURSTS full text sources ADS | data products SIMBAD (3) NED (1)