Interactions between planets and evolved stars

11th Pacific Rim Conference on Stellar Astrophysics: Physics and Chemistry of the Late Stages of Stellar Evolution

物理学;天文学

Shengbang, Qian^1,2,3 ; Zhongtao, Han^1,2,3 ; Fernández Lajús, E.^4,5 ; Liying, Zhu^1,2,3 ; Wenping, Liao^1,2 ; Miloslav, Zejda^6 ; Linjia, Li^1,2 ; Voloshina, Irina^7 ; Liang, Liu^1,2,3 ; Jiajia, He^1,2

Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming

650216, China^1

Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, Kunming

650216, China^2

University of the Chinese Academy of Sciences, Yuquan Road 19#, Shijingshan Block, Beijing

100049, China^3

Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de la Plata, La Plata, Buenos Aires

1900, Argentina^4

Instituto de Astrofisica de la Plata, CCT la Plata-CONICET/UNLP, Argentina^5

Department of Theoretical Physics and Astrophysics, Masaryk University, Kotláská 2, Brno

CZ-611 37, Czech Republic^6

Sternberg Astronomical Institute, Moscow State University, Universitetskij prospect 13, Moscow

119992, Russia^7

关键词: Binary star;    Cataclysmic variables;    Evolved stars;    In-orbit;    Planetary system;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/728/4/042006/pdf
DOI  :  10.1088/1742-6596/728/4/042006

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

Searching for planetary companions to evolved stars (e.g., white dwarfs (WD) and Cataclysmic Variables (CV)) can provide insight into the interaction between planets and evolved stars as well as on the ultimate fate of planets. We have monitored decades of CVs and their progenitors including some detached WD binaries since 2006 to search for planets orbiting these systems. In the present paper, we will show some observational results of circumbinary planets in orbits around CVs and their progenitors. Some of our findings include planets with the shortest distance to the central evolved binaries and a few multiple planetary systems orbiting binary stars. Finally, by comparing the observational properties of planetary companions to single WDs and WD binaries, the interaction between planets and evolved stars and the ultimate fate of planets are discussed.