High-resolution spectroscopy of detached solar-type eclipsing binaries observed during the Kepler K2 mission
Küçük Resim Yok
Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Oxford Univ Press
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Solar-type stars in eclipsing binaries are proving to be a remarkable resource of knowledge for testing models of stellar evolution, as spectroscopic and photometric studies have opened up a window into their interiors. Until recently, many cases have been worked out with Kepler data. in an ongoing effort to elucidate this research, we examine five detached eclipsing binaries, selected from the Kepler catalogue. There is a well-known stellar parameter discrepancy for low-mass stars, in that the observed radii and masses are often larger and stars overluminous than predicted by theory by several per cent. in our samples, we found five double-lined binaries, with solar-type stars dominating the spectrum. the orbital and light-curve solutions were found for them, and compared with isochrones, in order to estimate absolute physical parameters and evolutionary status of the components. An important aspect of this work is that the calculated stellar radii and masses are consistent with theoretical models within the uncertainties, whereas the estimated temperatures from the disentangled spectra of the components are no different than predicted.
Açıklama
Anahtar Kelimeler
binaries: eclipsing, binaries: spectroscopic, stars: evolution, stars: fundamental parameters, stars: individual: EPIC 201408204, EPIC 201648133, EPIC 202674012, EPIC 210822691, EPIC 210734337, stars: late-type
Kaynak
Monthly Notices of the Royal Astronomical Society
WoS Q Değeri
Q1
Scopus Q Değeri
Cilt
493
Sayı
2
