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

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

Apr 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...205l..79h&link_type=abstract

Astrophysical Journal, vol. 205, Apr. 15, 1976, pt. 2, p. L79-L82.

Astronomy and Astrophysics

Astronomy

7

Eclipsing Binary Stars, Shot Noise, X Ray Astronomy, X Ray Stars, Ariel Satellites, Data Reduction, Flares

Scientific paper

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.

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