Clockwise Stellar Disk and the Dark Mass in the Galactic Center

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dc.creatorBeloborodov, A. M.
dc.creatorLevin, Y.
dc.creatorEisenhauer, F.
dc.creatorGenzel, R.
dc.creatorPaumard, T.
dc.creatorGillessen, S.
dc.creatorOtt, T.
dc.date2006-01-12
dc.date2006-07-07
dc.date.accessioned2026-07-07T10:43:33Z
dc.date.available2026-07-07T10:43:33Z
dc.descriptionTwo disks of young stars have recently been discovered in the Galactic Center. The disks are rotating in the gravitational field of the central black hole at radii r=0.1-0.3 pc and thus open a new opportunity to measure the central mass. We find that the observed motion of stars in the clockwise disk implies M=4.3+/-0.5 million solar masses for the fiducial distance to the Galactic Center R_0=8 kpc and derive the scaling of M with R_0. As a tool for our estimate we use orbital roulette, a recently developed method. The method reconstructs the three-dimensional orbits of the disk stars and checks the randomness of their orbital phases. We also estimate the three-dimensional positions and orbital eccentricities of the clockwise-disk stars.
dc.descriptionComments: 16 pages, 5 figures, ApJ, in press
dc.identifierhttps://arxiv.org/abs/astro-ph/0601273
dc.identifierhttp://arxiv.org/abs/astro-ph/0601273
dc.identifierAstrophys.J.648:405-410,2006
dc.identifierdoi:10.1086/504279
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182279
dc.subjectAstrophysics
dc.titleClockwise Stellar Disk and the Dark Mass in the Galactic Center
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