Mkrtichian, D. ; Engelbrecht, C. ; Lampens, P. ; Lehmann, H. ; A-thano, N. ; Gunsriwiwa, K.

published in Bulletin de la Société Royale des Sciences de Liège, 88 issue October 2019, pp. 256-261 (2019)

Abstract: We present the first results of a spectroscopic survey of southern and equatorial Algol-type eclipsing binary systems with mass-accreting pulsating components (oEA stars) using the 2.4-m Thai National Telescope (TNT) and the 10-m South African Large Telescope (SALT). The survey aims to find orbital and binary parameters and to detect the high-degree non-radial pulsations (NRPs). We report the detection of high-degree NRPs in AS Eri, WYCet, VYHya, GQTrA, BDVir, and UWVir.

Keyword(s): binaries, eclipsing, Stars: oscillations, oEA stars