The broad-line region at the center of the Galaxy

Details The broad-line region at the center of the Galaxy The broad-line region at the center of the Galaxy

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...320..562g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 320, Sept. 15, 1987, p. 562-569.

Astronomy and Astrophysics

Astronomy

33

Galactic Nuclei, Infrared Sources (Astronomy), Infrared Spectra, Interstellar Gas, Milky Way Galaxy, Spectral Line Width, Broadband, Ionized Gases, Mass Flow, Radiant Flux Density, Spatial Distribution, Velocity Distribution

Scientific paper

The high-velocity wings of the Brα (4.05 μm) line at the Galactic center have been mapped with a 2arcsec.5 beam and at a velocity resolution of 400 km s-1. The broad-line region is spatially resolved, with a characteristic linear dimension of ≡3arcsec. The peak intensity of the high-velocity line emission is coincident with the position of the source IRS 16 Center, and its intensity distribution about that object is approximately symmetric. The observed motions appear to be neither rotational nor due to well-collimated jets. The authors suggest that the broad-line emission either is from more than one compact wind source or is the result of an interaction between an ultrahigh velocity wind and slower moving ionized gas in the "bar".

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