在白矮星周围碎屑盘内运行的星子
地球与行星天体物理
2019-04-05 v1 太阳与恒星天体物理
摘要
许多白矮星显示出吸积较小天体的迹象，意味着它们可能拥有行星系统。其中少数系统含有气态碎屑盘，可通过发射线观测到。我们报告了源自白矮星 SDSSJ122859.93+104032.9 周围碎屑盘的 CaII 发射线轮廓强度与形状存在稳定的 123.4 分钟周期变化。我们将这一短周期信号解释为由其内禀强度维系在一起的固体天体的特征。
引用
@article{arxiv.1904.02163,
title = {A planetesimal orbiting within the debris disc around a white dwarf star},
author = {Christopher J. Manser and Boris T. Gänsicke and Siegfried Eggl and Mark Hollands and Paula Izquierdo and Detlev Koester and John D. Landstreet and Wladimir Lyra and Thomas R. Marsh and Farzana Meru and Alexander J. Mustill and Pablo Rodríguez-Gil and Odette Toloza and Dimitri Veras and David J. Wilson and Matthew R. Burleigh and Melvyn B. Davies and Jay Farihi and Nicola Gentile Fusillo and Domitilla de Martino and Steven G. Parsons and Andreas Quirrenbach and Roberto Raddi and Sabine Reffert and Melania Del Santo and Matthias R. Schreiber and Roberto Silvotti and Silvia Toonen and Eva Villaver and Mark Wyatt and Siyi Xu and Simon Portegies Zwart},
journal= {arXiv preprint arXiv:1904.02163},
year = {2019}
}
备注
11 Figures, 3 Tables