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Eclipsing binary systems as tests of low-mass stellar evolution theory
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Astrophysics.ORCID iD: 0000-0002-2012-7215
2015 (English)In: Living Together: Planets, Host Stars, and Binaries / [ed] S. Rucinski, G. Torres, & M. Zejda, 2015, Vol. 496, 137-152 p.Conference paper (Other academic)
Abstract [en]

Stellar fundamental properties (masses, radii, effective temperatures) can be extracted from observations of eclipsing binary systems with remarkable precision, often better than 2%. Such precise measurements afford us the opportunity to confront the validity of basic predictions of stellar evolution theory, such as the mass-radius relationship. A brief historical overview of confrontations between stellar models and data from eclipsing binaries is given, highlighting key results and physical insight that have led directly to our present understanding. The current paradigm that standard stellar evolution theory is insufficient to describe the most basic relation, that of a star's mass to its radius, along the main sequence is then described. Departures of theoretical expectations from empirical data, however, provide a rich opportunity to explore various physical solutions, improving our understanding of important stellar astrophysical processes.

Place, publisher, year, edition, pages
2015. Vol. 496, 137-152 p.
, Astronomical Society of the Pacific Conference Series
National Category
Astronomy, Astrophysics and Cosmology
Research subject
Astronomy with specialization in Astrophysics; Astronomy
URN: urn:nbn:se:uu:diva-254679ISI: 000369467900019ISBN: 978-1-58381-877-0ISBN: 978-1-58381-876-3OAI: oai:DiVA.org:uu-254679DiVA: diva2:819257
"Living Together: Planets, Host Stars, and Binaries." Litomysl, Czech Republic, 08 - 12 September 2014. Convened in honor of Zdenek Kopal's 100th birthday.
Available from: 2015-06-10 Created: 2015-06-10 Last updated: 2016-06-20Bibliographically approved

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