Detection of stellar oscillations in HWVir

Baltic astronomy

article

Andrzej S. Baran¹  Roy H. Østensen²  John H. Telting³ 

[1] Uniwersytet Pedagogiczny;Department of Physics, and Materials Science, Missouri State University;Nordic Optical Telescope, Rambla José Ana Fernández Pérez 7

关键词: subdwarfs;    stars oscillations (including pulsations);   

DOI  :  10.1515/astro-2017-0437

来源: Institute of Theoretical Physics and Astronomy

【 摘 要 】

We present our analysis of K2 observations of the binary system, HWVir. We processed the raw Kepler data and used Fourier analysis to search for periodic signals that could be associated with pulsations. We detect the binary frequency and its harmonic and discovered tens of peaks at both low and high frequencies. We interpreted those to be caused by stellar pulsations. Our discovery means we can apply the tools of asteroseismology to the HWVir system.

【 授权许可】

Unknown