Stellar kinematics in the Galactic center

Abstract

view Abstract Citations (131) References (48) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Stellar Kinematics in the Galactic Center McGinn, M. T. ; Sellgren, K. ; Becklin, E. E. ; Hall, D. N. B. Abstract The results of a project to map extensively the stellar kinematics on the central 10 pc of the Galaxy are presented. The spatial dependence of the integrated stellar velocity and velocity dispersion are determined. The stars in the region move with a combination of ordered rotation and chaotic motion. The random component of the motion generally dominates the systemic component, particular at small radii. The stars and the gas are found to have different kinematics. Analysis of the stellar kinematics confirms that the dynamical center of the Galaxy is coincident with IRS 16 within + or - 10 deg. The observations and the theory of stellar hydrodynamics are used to obtain an estimate of the mass distribution between a Galactocentric radius of 0.5 and 5 pc. Publication: The Astrophysical Journal Pub Date: March 1989 DOI: 10.1086/167239 Bibcode: 1989ApJ...338..824M Keywords: Galactic Nuclei; Milky Way Galaxy; Star Clusters; Stellar Motions; Brightness Distribution; Density Distribution; Error Analysis; Fabry-Perot Spectrometers; Faint Objects; Galactic Rotation; Mass Distribution; Astrophysics; GALAXIES: THE GALAXY; GALAXIES: INTERNAL MOTIONS; GALAXIES: NUCLEI full text sources ADS | data products SIMBAD (4)