β Cephei pulsators in eclipsing binaries observed with TESS
The Astrophysical Journal Supplement Series(2024)
摘要
The combined strength of asteroseismology and empirical stellar basic
parameter determinations for in-depth asteroseismic analysis of massive
pulsators in eclipsing binaries shows great potential for treating the
challenging and mysterious discrepancies between observations and models of
stellar structure and evolution of massive stars. This paper compiles a
comprehensive list of massive pulsators in eclipsing binary systems observed
with TESS. The TESS light curves and Discrete Fourier Transforms (DFT) of a
sample of 8055 stars of spectral type B0–B3 were examined for eclipses and
stellar pulsations and the ephemerides of the resulting sub-sample of massive
pulsators in eclipsing binaries were computed. This sub-sample was also
cross-matched with existing catalogues of massive pulsators. Until now, fewer
than 30 β Cep pulsators in eclipsing binaries have been reported in the
literature. Here we announce a total of 78 pulsators of the β Cephei type
in eclipsing binaries, 59 of which are new discoveries. Forty-three are
recognized as definite and 35 are candidate pulsators. Our sample of pulsating
massive stars in eclipsing binaries allows for future asteroseismic modelling
to better understand the internal mixing profile and to resolve the mass
discrepancy in massive stars. We have already started follow-up of some of the
most interesting candidates.
更多查看译文
关键词
Asteroseismology,Beta Cephei variable stars,Binary stars,Eclipsing binary stars,Massive stars,Multi-periodic pulsation
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要