English

Radial Velocity Studies of Close Binary Stars.III

Astrophysics 2009-10-31 v1

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.

Keywords

Cite

@article{arxiv.astro-ph/0002173,
  title  = {Radial Velocity Studies of Close Binary Stars.III},
  author = {Slavek M. Rucinski and Wenxian Lu and Stefan W. Mochnacki},
  journal= {arXiv preprint arXiv:astro-ph/0002173},
  year   = {2009}
}

Comments

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