We present our analysis of K2 observations of the binary system, HW Vir. 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 HW Vir system.
Physics, Astronomy, and Materials Science
© 2017 the authors. Published by DeGruyter Open. This work is licensed under the Creative Commons Attribution Non Commercial-No Derivatives 4.0 License.
Stars: Oscillations (including pulsations), Subdwarfs
Baran, Andrzej S., Roy H. Østensen, and John H. Telting. "Detection of stellar oscillations in HWVir." Open Astronomy 26, no. 1 (2016): 199-201.