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Determining the evolutionary stage of HD163899 on the basis of its oscillation spectrum

Published online by Cambridge University Press:  27 October 2016

Jakub Ostrowski ,
Jadwiga Daszyńska-Daszkiewicz  and
Henryk Cugier
Jakub Ostrowski
Affiliation:
Instytut Astronomiczny, Uniwersytet Wrocławski, ul. Kopernika 11, 51-622 Wrocław, Poland email: ostrowski@astro.uni.wroc.pl, daszynska@astro.uni.wroc.pl, cugier@astro.uni.wroc.pl
Jadwiga Daszyńska-Daszkiewicz
Affiliation:
Instytut Astronomiczny, Uniwersytet Wrocławski, ul. Kopernika 11, 51-622 Wrocław, Poland email: ostrowski@astro.uni.wroc.pl, daszynska@astro.uni.wroc.pl, cugier@astro.uni.wroc.pl
Henryk Cugier
Affiliation:
Instytut Astronomiczny, Uniwersytet Wrocławski, ul. Kopernika 11, 51-622 Wrocław, Poland email: ostrowski@astro.uni.wroc.pl, daszynska@astro.uni.wroc.pl, cugier@astro.uni.wroc.pl
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Abstract

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We present the new interpretation of the oscillation spectrum of HD 163899 based on the new determinations of the effective temperature, mass-luminosity ratio and rotational velocity. These new parameters strongly prefer the more massive models than previously considered. Now it is also possible that the star could be in the main sequence stage. Using the oscillation spectrum as a gauge, we intend to establish which stage of evolution corresponds better to HD 163899.

Keywords

stars: early-typestars: supergiantsstars: oscillations
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , General Assembly A29B: Astronomy in Focus , August 2015 , pp. 567 - 572
Copyright
Copyright © International Astronomical Union 2016 

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