The effects of a departure from co-rotation in X-ray binaries

Details The effects of a departure from co-rotation in X-ray binaries The effects of a departure from co-rotation in X-ray binaries

Oct 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975mnras.173...21w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 173, Oct. 1975, p. 21-31.

Astronomy and Astrophysics

Astronomy

7

Eclipsing Binary Stars, Light Curve, Stellar Rotation, X Ray Binaries, X Ray Sources, Amplitudes, Early Stars, Error Analysis, Inclination, Interpolation, Light (Visible Radiation), Mass Ratios, Stellar Luminosity, Stellar Mass, Tables (Data)

Scientific paper

A basic assumption inherent in all calculations of light curves for X-ray binaries with early-type components is that the primary star is in synchronous rotation (co-rotation) with the orbital period. There is a possibility that massive X-ray binaries with low mass ratio may not have had sufficient time to achieve co-rotation. The effects of departure from co-rotation on the light curve of the optical counterpart HD 77581 of the X-ray binary 3U 0900-40 is investigated, and it is concluded that a breakdown of the co-rotation assumption could result in significant errors in the mass ratio and orbital inclination derived from a conventional Roche-lobe analysis of the light curve.-

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