Spectroscopic orbits and variations of RS Oph

  title={Spectroscopic orbits and variations of RS Oph},
  author={E. E. Brandi and C. Quiroga and Joanna Mikołajewska and O. E. Ferrer and L. G. Garc{\'i}a},
  journal={arXiv: Solar and Stellar Astrophysics},
The aims of our study are to improve the orbital elements of the giant and to derive the spectroscopic orbit for the white dwarf companion. Spectral variations related to the 2006 outburst are also studied. The spectroscopic orbits have been obtained by measuring the radial velocities of the cool component absorption lines and the broad Halpha emission wings, which seem to be associated with the hot component. A set of cF-type absorption lines were also analyzed for a possible connection with… 
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