Hypervelocity planets and transits around hypervelocity stars
Wegner, Gary A.
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CitationGinsburg, Idan, Abraham Loeb, and Gary A. Wegner. 2012. “Hypervelocity Planets and Transits around Hypervelocity Stars.” Monthly Notices of the Royal Astronomical Society 423 (1): 948–54. https://doi.org/10.1111/j.1365-2966.2012.20930.x.
AbstractThe 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.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41412204
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