Speaker
Dr
David Mkrtichian
(NARIT)
Description
I will give a review on pulsation properties of the group of mass-accreting components of Algols (oEA stars). I will discuss the importance of detection of high-degree nonradial pulsations (NRP). The precise monitoring of frequencies of high-degree NRPs allows tracking the micro-variations (acceleration and braking) of the surface layers of oEA stars under high mass-transfer events. I will report about first results of the ongoing high-resolution spectroscopic survey of oEA stars started in 2017 using the SALT telescope and aimed to detect the high-degree NRP in Southern oEA stars.
Primary author
Dr
David Mkrtichian
(NARIT)
Co-author
Dr
Engelbrecht Chris
(University of Johanesburg, South Africa)
