Sgr A* Companion S0-2: A Probe of Very High-Mass Star Formation
| dc.creator | Gould, Andrew | |
| dc.creator | Quillen, Alice C. | |
| dc.date | 2003-02-20 | |
| dc.date.accessioned | 2026-07-07T10:26:52Z | |
| dc.date.available | 2026-07-07T10:26:52Z | |
| dc.description | The star S0-2, which is orbiting Sgr A* with a 15-yr period, almost certainly did not form in situ. We propose that it was injected into this close orbit by the tidal disruption of a massive-star binary, whose primary was more massive than S0-2 and at least 60 Msun. From numerical integrations we find that 1-2% of incoming binaries with closest approach equal to 130 AU leave the secondary in an orbit with eccentricity within 0.01 of that of SO-2. If additional stars are found orbiting Sgr A* with relatively short periods, they could be used to probe the formation of massive stars in the Galactocentric region, even though the massive stars themselves have long since perished. | |
| dc.description | Submitted to ApJ, 12 pages including 2 figures | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0302437 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0302437 | |
| dc.identifier | Astrophys.J.592:935-940,2003 | |
| dc.identifier | doi:10.1086/375840 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/176988 | |
| dc.subject | Astrophysics | |
| dc.title | Sgr A* Companion S0-2: A Probe of Very High-Mass Star Formation | |
| dc.type | text |