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| Paper: |
The Benchmark Eclipsing Binary V530 Ori: A Critical Test of
Magnetic Evolution Models for Low-Mass Stars |
| Volume: |
496, Living Together: Planets, Host Stars and Binaries |
| Page: |
169 |
| Authors: |
Torres, G.; Lacy, C. H. S.; Pavlovski, K.; Feiden, G. A.; Sabby, J. A.; Bruntt, H.; Clausen, J. V. |
| Abstract: |
We report accurate measurements of the physical properties (mass,
radius, temperature) of components of the G+M eclipsing binary
V530 Ori. The M-type secondary shows a larger radius and a cooler
temperature than predicted by standard stellar evolution models, as
has been found for many other low-mass stars and ascribed to the
effects of magnetic activity and/or spots. We show that models from
the Dartmouth series that incorporate magnetic fields are able to
match the observations with plausible field strengths of 1-2 kG,
consistent with a rough estimate we derive for that star. |
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