Radial Velocity Studies of Close Binary Stars.III

Details Radial Velocity Studies of Close Binary Stars.III Radial Velocity Studies of Close Binary Stars.III

2000-02-08

arxiv.org/abs/astro-ph/0002173v1

Astronomy and Astrophysics

Astrophysics

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

Scientific paper

10.1086/301458

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.

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