The Benchmark Eclipsing Binary V530 Ori: A Critical Test of Magnetic Evolution Models for Low-Mass Stars
2015 (English)In: Living Together: Planets, Host Stars, and Binaries, 2015, Vol. 496, 169-173 p.Conference paper (Refereed)Text
We report accurate measurements of the physical properties (mass, radius, temperature) of components of the G+M eclipsing binary V530 On. 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.
Place, publisher, year, edition, pages
2015. Vol. 496, 169-173 p.
, Astronomical Society of the Pacific Conference Series
Astronomy, Astrophysics and Cosmology
IdentifiersURN: urn:nbn:se:uu:diva-282746ISI: 000369467900024ISBN: 978-1-58381-877-0ISBN: 978-1-58381-876-3OAI: oai:DiVA.org:uu-282746DiVA: diva2:940057
"Living Together: Planets, Host Stars, and Binaries." Litomysl, Czech Republic, 08 - 12 September 2014. Convened in honor of Zdenek Kopal's 100th birthday.