Astronomy and Astrophysics – Astrophysics – Galaxy Astrophysics
Scientific paper
2012-01-06
Astronomy and Astrophysics
Astrophysics
Galaxy Astrophysics
8 pages, 5 figures, 2 tables, accepted for publication in MNRAS
Scientific paper
The disruption of a binary star system by the massive black hole at the Galactic Centre, SgrA*, can lead to the capture of one star around SgrA* and the ejection of its companion as a hypervelocity star (HVS). We consider the possibility that these stars may have planets and study the dynamics of these planets. Using a direct $N$-body integration code, we simulated a large number of different binary orbits around SgrA*. For some orbital parameters, a planet is ejected at a high speed. In other instances, a HVS is ejected with one or more planets orbiting around it. In these cases, it may be possible to observe the planet as it transits the face of the star. A planet may also collide with its host star. In such cases the atmosphere of the star will be enriched with metals. In other cases, a planet is tidally disrupted by SgrA*, leading to a bright flare.
Ginsburg Idan
Loeb Abraham
Wegner Gary. A.
No associations
LandOfFree
Hypervelocity Planets and Transits Around Hypervelocity Stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Hypervelocity Planets and Transits Around Hypervelocity Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hypervelocity Planets and Transits Around Hypervelocity Stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-663171