Infrared imaging spectroscopy of the Galactic center - Distribution and motions of the ionized gas

Details Infrared imaging spectroscopy of the Galactic center - Distribution and motions of the ionized gas Infrared imaging spectroscopy of the Galactic center - Distribution and motions of the ionized gas

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....105..956h&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 105, no. 3, p. 956-970, 1224.

Astronomy and Astrophysics

Astronomy

34

Astronomical Maps, Galactic Nuclei, Gas Ionization, Infrared Imagery, Infrared Spectroscopy, Radio Sources (Astronomy), Hydrogen, Infrared Telescopes, Line Spectra, Pixels, Stellar Spectra

Scientific paper

High 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.

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