Document Detail

Disruption of a proto-planetary disc by the black hole at the milky way centre.
MedLine Citation:
PMID:  22968695     Owner:  NLM     Status:  In-Data-Review    
Recently, an ionized cloud of gas was discovered plunging towards the supermassive black hole, SgrA*, at the centre of the Milky Way. The cloud is being tidally disrupted along its path to closest approach at ∼3,100 Schwarzschild radii from the black hole. Here we show that the observed properties of this cloud of gas can naturally be produced by a proto-planetary disc surrounding a low-mass star, which was scattered from the observed ring of young stars orbiting SgrA*. As the young star approaches the black hole, its disc experiences both photoevaporation and tidal disruption, producing a cloud. Our model implies that planets form in the Galactic centre, and that tidal debris from proto-planetary discs can flag low-mass stars, which are otherwise too faint to be detected.
Ruth A Murray-Clay; Abraham Loeb
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Nature communications     Volume:  3     ISSN:  2041-1723     ISO Abbreviation:  Nat Commun     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-09-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101528555     Medline TA:  Nat Commun     Country:  England    
Other Details:
Languages:  eng     Pagination:  1049     Citation Subset:  IM    
Institute for Theory & Computation, Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138, USA.
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