Binary evolution pulsating star - new evolutionary channel to produce RR Lyr-like pulsations

• Published in: Advances in Astronomy and Space Physics
• Date: 2012
• Main Author: Karczmarek, P.
• Format: Article
• Language: English
• Published: Головна астрономічна обсерваторія НАН України 2012
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/119184
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Binary evolution pulsating star - new evolutionary channel to produce RR Lyr-like pulsations / P. Karczmarek // Advances in Astronomy and Space Physics. — 2012. — Т. 2., вип. 2. — С. 135-138. — Бібліогр.: 10 назв. — англ.

In 2011 a promising candidate for an RR Lyrae star in an eclipsing binary system was found. Till that time not even one case of RR Lyrae star in a binary system has been known. The pulsator's mass is 0.26 Mꙩ which is not enough to burn helium in the core, as RR Lyrae stars do. The presence of...