Synchronization of the G Giant Rotation in the Symbiotic Binary StHa 190?

Details Synchronization of the G Giant Rotation in the Symbiotic Binary StHa 190? Synchronization of the G Giant Rotation in the Symbiotic Binary StHa 190?

2011-02-25

arxiv.org/abs/1102.5211v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Scientific paper

We present an analysis of high resolution spectral observations of the symbiotic star StHa 190. A 30 days period has been derived from radial velocities of the G-type absorption lines and the HeII 4686A emission line. The main aim of this work was to look for explanation of the very wide absorption lines of the yellow giant. The very low mass function obtained from the absorption lines radial velocities suggests that the observed changes probably do not corespond to the orbital motion of this star.

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