Radial Velocity Studies of Close Binary Stars.III

Abstract

Radial velocity measurements and simple sine-curve fits to the orbital velocity variations are presented for the third set of ten contact binary systems: CN And, HV Aqr, AO Cam, YY CrB, FU Dra, RZ Dra, UX Eri, RT LMi, V753 Mon, OU Ser. All systems but two are contact, double-line spectroscopic binaries with four of them (YY CrB, FU Dra, V753 Mon, OU Ser) being the recent discoveries of the Hipparcos satellite project. The most interesting object is V753 Mon with the mass-ratio closest to unity among all contact systems (q = 0.970 pm 0.003) and large total mass ((M1+M2)sin^3i = 2.93 pm 0.06). Several of the studied systems are prime candidates for combined light and radial-velocity synthesis solutions.

submitted for publication in Astronomical Journal; 3 figures, 2 tables

References in corpus (1)

• Radial Velocity Studies of Close Binary Stars.II

Cited by in corpus (26)

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• Radial Velocity Studies of Close Binary Stars.V
• Radial Velocity Studies of Close Binary Stars.VI
• Radial Velocity Studies of Close Binary Stars.VIII
• Radial Velocity Studies of Close Binary Stars. XI
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• Radial Velocity Studies of Close Binary Stars. IX
• Radial Velocity Studies of Close Binary Stars.X
• The structure of contact binaries
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• Radial Velocity Studies of Southern Close Binary Stars.II
• Starspots in contact and semi-detached binary systems
• Physical parameters of close binary systems: VIII
• Spectroscopic metallicity determinations for W~UMa-type binary stars
• Radial Velocity Studies of Southern Close Binary Stars.I
• Assessment of evolutionary status of eclipsing binaries using light-curve parameters and spectral classification
• Comparative study of TESS photometry and radial velocities on six early K-type contact binaries with similar periods around 0.268 days
• New absolute magnitude calibrations for W Ursa Majoris type binaries
• Chromospheric activity in bright contact binary stars
• A Multicolour Photometric Study of the neglected eclipsing binary FT Ursae Majoris