Evidence for noncircular orbits in X-ray binaries

Details Evidence for noncircular orbits in X-ray binaries Evidence for noncircular orbits in X-ray binaries

Nov 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...226..264h&link_type=abstract

Astrophysical Journal, Part 1, vol. 226, Nov. 15, 1978, p. 264-270.

Astronomy and Astrophysics

Astronomy

23

Binary Stars, Orbital Mechanics, Stellar Motions, X Ray Astronomy, X Ray Binaries, X Ray Stars, Eccentricity, Light Curve, Magellanic Clouds, O Stars

Scientific paper

Published observations of several OB X-ray binary systems have yielded mean light curves and colors accurate to 0.01 mag or better. These are examined using models computed for circular and noncircular orbits by a computer code developed by Hill. X-ray and spectroscopic evidence is reviewed, and it is concluded that 4U 1700-37 and Cyg X-1 data are fitted by noncircular orbits. No support is found for noncircularity in the orbit of 4U 0900-40. Other systems are also discussed.

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