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Infrared imaging spectroscopy of the Galactic center - Distribution and motions of the ionized gasHigh spatial spectral resolution IR images of the Galactic center in the Br-gamma recombination line of hydrogen were taken. A coherent filament of gas extending from north of IRS 1, curving around IRS 16/Sgr A complex, and continuing to the southwest, is seen. Nine stellar sources have associated Br-gamma emission. The total Br-gamma line flux in the filament is approximately 3 x 10 exp -15 W/sq m. The distribution and kinematics of the northern arm suggest orbital motion; the observations are accordingly fit with elliptical orbits in the field of a central point of mass.
Document ID
Document Type
Reprint (Version printed in journal)
External Source(s)
Herbst, T. M. (Hawaii Univ. Honolulu; Cornell Univ., Ithaca, NY, United States)
Beckwith, S. V. W. (Max-Planck-Inst. fuer Astronomie, Heidelberg, Germany; Cornell Univ. Ithaca, NY, United States)
Forrest, W. J. (NASA Headquarters Washington, DC United States)
Pipher, J. L. (Rochester Univ. NY, United States)
Date Acquired
August 16, 2013
Publication Date
March 1, 1993
Publication Information
Publication: Astronomical Journal
Volume: 105
Issue: 3
ISSN: 0004-6256
Subject Category
Distribution Limits