Oct 9 – 12, 2018
Royal Observatory of Belgium
UTC timezone
<br>2nd BINA Workshop<br><br>BINA as an expanding international collaboration<P><img src="https://events.oma.be/indico/event/48/picture/0.jpg" width="279" height="75">

The spectroscopic survey of southern oEA stars

Oct 12, 2018, 12:10 PM
20m
Meridian Room (Royal Observatory of Belgium)

Meridian Room

Royal Observatory of Belgium

Ringlaan 3, 1180 Brussels, Belgium
Contributed Talk 3.2. Data & Science with other telescopes of interest 3. Data & Science with other telescopes of interest

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)

Presentation materials