Abstract

view Abstract Citations (18) References (11) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A 2.2 Second Period in the 1984 August 3 Gamma-Ray Burst Kouveliotou, C. ; Desai, U. D. ; Cline, T. L. ; Dennis, B. R. ; Fenimore, E. E. ; Klebesadel, R. W. ; Laros, J. G. Abstract A time history and Fourier power spectrum are presented for the August 5, 1984 gamma-ray burst (GRB) observed with the SMM Hard X-ray Burst Spectrometer and the Pioneer Venus Orbiter spacecraft. A significant complex feature of the event is identifiable in both data sets: a gradual ripple with a well-defined 2.2-sec period lasting for seven cycles, with a series of narrow spikes, which appear always on the ascending phase of the sinusoidal ripple. This event is unusual in both its temporal and spectral attributes: it exhibits coexistence of periodic and nonperiodic features, and it was also reported as the most intense GRB event observed with the SMM Gamma-Ray Spectrometer, extending up to 100 MeV. Publication: The Astrophysical Journal Pub Date: July 1988 DOI: 10.1086/185214 Bibcode: 1988ApJ...330L.101K Keywords: Fourier Analysis; Gamma Ray Bursts; Periodic Variations; Power Spectra; Pioneer Venus Spacecraft; Ripples; Solar Maximum Mission; Time Measurement; X Ray Spectroscopy; Space Radiation; GAMMA RAYS: BURSTS full text sources ADS | data products SIMBAD (1)

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