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arXiv · 1401.3698

The Double Contact Nature of TT Herculis

Dirk Terrell·Robert H. Nelson
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Abstract

We present new radial velocities and photometry of the short-period Algol TT Herculis. Previous attempts to model the light curves of the system have met with limited success, primarily because of the lack of a reliable mass ratio. Our spectroscopic observations are the first to result in radial velocities for the secondary star, and thus provide a spectroscopic mass ratio. Simultaneous analysis of the radial velocities and new photometry shows that the system is a double contact binary, with a rapidly rotating primary that fills its limiting lobe.

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Dirk Terrell, Robert H. Nelson. 2014-01-15. The Double Contact Nature of TT Herculis. https://doi.org/10.1088/0004-637x/783/1/35

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