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Stellar kinematics in the galactic centreThe observations of the stellar kinematics in the central 8 pc of the Galaxy are presented. It is shown that the spectroscopy of the 2.3 microns CO absorption feature, in late type stars, yields the stellar velocity dispersion and the average stellar radial velocity as a function of galactocentric distance. A sample spectra that illustrates the observed velocity shifrs and velocity dispersion is given. The analysis shows that the velocity dispersion of the stars is large, and that it dominates the stellar kinematics. The use of these kinematic data, to probe the mass distribution in the Galactic center, is considered.
Document ID
19900009825
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mcginn, M. T.
(Hawaii Univ. Honolulu, HI, United States)
Sellgren, K.
(Hawaii Univ. Honolulu, HI, United States)
Becklin, E. E.
(Hawaii Univ. Honolulu, HI, United States)
Hall, D. N. B.
(Hawaii Univ. Honolulu, HI, United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1989
Publication Information
Publication: ESA, Infrared Spectroscopy in Astronomy
Subject Category
Astrophysics
Accession Number
90N19141
Funding Number(s)
CONTRACT_GRANT: NASW-3159
CONTRACT_GRANT: NSF AST-87-00618
Distribution Limits
Public
Copyright
Other
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