Detalles de publicación
PP 020150
Asteroseismology of the heartbeat star KIC 5006817
1 Astronomical Institute, Faculty of Mathematics and Physics, Charles University, V Holesovickach;
2 Institute of Physics, Faculty of Science, P. J. Safarik University;
3 Konkoly Observatory, Research Centre for Astronomy and Earth Sciences,
Konkoly;
4 Department of Astronomy, Eotvos University, Pazmany Peter setany, Budapest, Hungary;
5 Nicolaus Copernicus Astronomical Centre, Polish Academy of Sciences, Warszawa, Poland;
6 Astronomical Institute, Academy of Sciences of Czech Republic;
7 Institut für Physik, Universität Graz, Austria
8 Instituto de Astrofısica de Canarias, La Laguna, Tenerife, Spain
This paper summarizes the project work on asteroseismology at the ERASMUS+ GATE 2020 Summer school on space satellite data. The aim was to do a global asteroseismic analysis of KIC 5006817 and quantify its stellar properties using the high-quality, state of the art space missions data. We employed the aperture photometry to analyze the data from the Kepler space telescope and the Transiting Exoplanet Survey Satellite (TESS). Using the lightkurve Python package, we have derived the asteroseismic parameters and calculated the stellar parameters using the scaling relations. Our analysis of KIC 5006817 confirmed its classification as a heartbeat binary. The rich oscillation spectrum facilitate estimating power excess ($\nu_{\rm max}$) at 145.50$\pm$0.50 $\mu$Hz and large frequency separation ($\Delta\nu$) to be 11.63$\pm$0.10 $\mu$Hz. Our results showed that the primary component is a low-luminosity, red-giant branch star with a mass, radius, surface gravity, and luminosity of 1.53$\pm$0.07 M$_\odot$, 5.91$\pm$0.12 R$_\odot$, 3.08$\pm$0.01 dex, and 19.66$\pm$0.73 L$_\odot$, respectively. The orbital period of the system is 94.83$\pm$0.05 d.

