Light-curve solutions for S CANCRI and TT Hydrae with rapid rotation

Details Light-curve solutions for S CANCRI and TT Hydrae with rapid rotation Light-curve solutions for S CANCRI and TT Hydrae with rapid rotation

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.262..220v&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 262, no. 1, p. 220-230.

Astronomy and Astrophysics

Astronomy

24

Eclipsing Binary Stars, Light Curve, Radial Velocity, Stellar Mass Ejection, Stellar Rotation, Iue, Line Spectra

Scientific paper

Physical model light- and velocity-curve solutions for S Cancri and TT Hydrae are obtained, and analyses with incorporation of asynchronous rotation are carried out. A photometric rotation rate for the primary star of TT Hya is determined, and excellent agreement with results from spectral line profiles is found. Both separate light- and velocity-curve solutions and simultaneous light-velocity solutions are listed. The photometric rotation for S Cnc from existing light curves is indeterminate, but is compatible with line profile measures. Evidence for third light from the light curves of S Cnc is found. An explanation for the apparent conflict between the rotational states and mass-transfer activities of the two binaries is suggested.

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