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Heartbeat Stars and the Ringing of Tidal Pulsations

التفاصيل البيبلوغرافية
العنوان: Heartbeat Stars and the Ringing of Tidal Pulsations
المؤلفون: Hambleton Kelly, Kurtz Don, Prša Andrej, Fuller Jim, Thompson Susan
المصدر: EPJ Web of Conferences, Vol 101, p 04007 (2015)
بيانات النشر: EDP Sciences
سنة النشر: 2015
المجموعة: Directory of Open Access Journals: DOAJ Articles
مصطلحات موضوعية: Physics, QC1-999
الوصف: With the advent of high precision photometry from satellites such as Kepler and CoRoT, a whole new layer of interesting and astounding astronomical objects has been revealed: heartbeat stars are an example of such objects. Heartbeat stars are eccentric ellipsoidal variables that undergo strong tidal interactions when the stars are almost in contact at the time of closest approach. These interactions deform of the stars and cause a notable light curve variation in the form of a tidal pulse. A subset of these objects (~20%) show prominent tidally induced pulsations: pulsations forced by the binary orbit. We now have a fully functional code that models binary star features (using PHOEBE) and stellar pulsations simultaneously, enabling a complete and accurate heartbeat star model to be determined. In this paper we show the results of our new code, which uses emcee, a variant of mcmc, to generate a full set of stellar parameters. We further highlight the interesting features of KIC 8164262, including its tidally induced pulsations and resonantly locked pulsations.
نوع الوثيقة: article in journal/newspaper
اللغة: English
تدمد: 2100-014X
العلاقة: http://dx.doi.org/10.1051/epjconf/201510104007Test; https://doaj.org/toc/2100-014XTest; https://doaj.org/article/c4055db9cab3487ab373f27e1da68053Test
DOI: 10.1051/epjconf/201510104007
الإتاحة: https://doi.org/10.1051/epjconf/201510104007Test
https://doaj.org/article/c4055db9cab3487ab373f27e1da68053Test
رقم الانضمام: edsbas.86CCA786
قاعدة البيانات: BASE
الوصف
تدمد:2100014X
DOI:10.1051/epjconf/201510104007