A planet on an inclined orbit as an explanation of the warp in the β Pictoris disc

被引:262
作者
Mouillet, D
Larwood, JD
Papaloizou, JCB
Lagrange, AM
机构
[1] Univ Grenoble 1, Observ Grenoble, Astrophys Lab, UMR 5571, F-38041 Grenoble 09, France
[2] Queen Mary Univ London, Sch Math Sci, Astron Unit, London E1 4NS, England
关键词
circumstellar matter; stars; individual; beta Pictoris; planetary systems;
D O I
10.1093/mnras/292.4.896
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We consider the deformation that has recently been observed in the inner part of the circumstellar disc around beta Pictoris with the HST. Our recent ground-based, adaptive optics coronographic observations confirm that the inner disc is warped. We investigate the hypothesis that a yet undetected planet is responsible for the observed warp, through simulations of the effect of the gravitational perturbation resulting from a massive companion on the disc. The physical processes assumed in the simulations are discussed: since the observed particles do not survive collisions, the apparent disc shape is driven by the underlying collisionless parent population. The resulting possible parameters for the planet that are consistent with the observed disc deformation are reviewed.
引用
收藏
页码:896 / 904
页数:9
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