Detached eclipsing binaries from the Kepler field: radii and photometric masses of components in short-period systems
| Autor: | Patricia Cruz, John F Aguilar, Hernán E Garrido, Marcos P Diaz, Enrique Solano |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Astrophysics - Solar and Stellar Astrophysics
Space and Planetary Science FOS: Physical sciences Astrophysics::Solar and Stellar Astrophysics Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics::Earth and Planetary Astrophysics Solar and Stellar Astrophysics (astro-ph.SR) Astrophysics::Galaxy Astrophysics |
| Popis: | The characterisation of detached eclipsing binaries with low mass components has become important when verifying the role of convection in stellar evolutionary models, which requires model-independent measurements of stellar parameters with great precision. However, spectroscopic characterisation depends on single-target radial velocity observations and only a few tens of well-studied low-mass systems have been diagnosed in this way. We characterise eclipsing detached systems from the {\it Kepler} field with low mass components by adopting a purely-photometric method. Based on an extensive multi-colour dataset, we derive effective temperatures and photometric masses of individual components using clustering techniques. We also estimate the stellar radii from additional modelling of the available {\it Kepler} light curves. Our measurements confirm the presence of an inflation trend in the mass-radius diagram against theoretical stellar models in the low-mass regime. 11 pages, 7 figures, accepted for publication in MNRAS |
| Databáze: | OpenAIRE |
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