Cygnus X-1 - an interpretation of the spectrum and its variability

Details Cygnus X-1 - an interpretation of the spectrum and its variability Cygnus X-1 - an interpretation of the spectrum and its variability

Feb 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...195l.101t&link_type=abstract

Astrophysical Journal, vol. 195, Feb. 1, 1975, pt. 2, p. L101-L105.

Astronomy and Astrophysics

Astronomy

153

Astronomical Models, Black Holes (Astronomy), Stellar Spectra, Variable Stars, X Ray Astronomy, X Ray Stars, Radiant Flux Density, Stellar Evolution, Stellar Rotation, X Ray Spectra

Scientific paper

X-ray observations of Cygnus X-1 are compared with the 'standard' model (accretion disk surrounding a rotating black hole). Attention focuses on the shape of the X-ray spectrum, the fluctuations in X-ray intensity, and the 1971 transition in the spectrum. There are several encouraging agreements of model and data, but a detailed comparison awaits further theoretical and observational studies. Several predictions of the standard model are listed as suggestive guides for future work.

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