A spectroscopic survey of oEA stars

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


Publication : Bulletin de la Société Royale des Sciences de Liège, in Proceedings of the Second Belgo-Indian Network for Astronomy & Astrophysics (BINA) workshop, October 2018, held in Brussels, Belgium, Vol. 88, pp. 256-261
DOI : 10.25518/0037-9565.8946​
Keywords : binaries; eclipsing; Stars: oscillations; oEA stars