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Long-term X-ray studies of Scorpius X-1. II - Evidence for flare-dominated intensity variations (1976)

Serlemitsos, P. J. ; Kaluzienski, L. J. ; Boldt, E. A. ; [et al.]

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Publication Date: 2011-08-16

Description: Data on Sco X-1 obtained with the Ariel-5 All-Sky Monitor are analyzed for variability, and it is found that a large fraction of the X-ray emission at 3 to 6 keV can be represented by shot noise. The results indicate that almost all the emission in this range can be sensibly associated with a multiplicity of shotlike flares (about 200 a day), each having a duration of about 0.33 day. It is concluded that the overall consistency with a multiplicity of long-duration shots (rather than single flares superposed on a baseline continuum) may be generally characteristic of sources with an accretion disk.

Keywords: ASTROPHYSICS

Type: Astrophysical Journal; 205; Apr. 15

Format: text

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