Dynamics of the Star S0‐1 and the Nature of the Compact Dark Object at the Galactic Center
Open Access
- 1 December 1999
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 526 (2) , 744-751
- https://doi.org/10.1086/308026
Abstract
It has recently been shown that analysis of the orbits of the fast-moving stars close to Sgr A* provides a valuable tool to probe the gravitational potential near the Galactic center. As an example, we present here the results of a calculation of possible orbits of the star S0-1 in both the black hole and the degenerate neutrino ball scenarios of the central mass, based on the recent measurements of stellar proper motions at the Galactic center by Ghez et al. Taking into account the error bars of their analysis, it is shown that within a few years, the orbit of S0-1 may indeed reveal the nature of the supermassive compact dark object at the Galactic center.Keywords
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This publication has 42 references indexed in Scilit:
- General-Relativistic Thomas-Fermi ModelGeneral Relativity and Gravitation, 1999
- Gravitational phase transition of heavy neutrino matterProgress in Particle and Nuclear Physics, 1998
- Stars and halos of degenerate relativistic heavy-neutrino and neutralino matterPhysical Review D, 1998
- On the formation of heavy neutrino stars during a gravitational phase transitionNuclear Physics B - Proceedings Supplements, 1998
- On the nature of the dark mass in the centre of the Milky WayMonthly Notices of the Royal Astronomical Society, 1997
- Gravitational phase transition of fermionic matterPhysics Letters B, 1997
- Stellar proper motions in the central 0.1 pc of the GalaxyMonthly Notices of the Royal Astronomical Society, 1997
- Observations of stellar proper motions near the Galactic CentreNature, 1996
- Unsolved Problems of the Milky WayPublished by Springer Nature ,1996
- Narrowband HST images of M87: Evidence for a disk of ionized gas around a massive black holeThe Astrophysical Journal, 1994