Infrared observations of the galactic center. IV - The interstellar extinction

Details Infrared observations of the galactic center. IV - The interstellar extinction Infrared observations of the galactic center. IV - The interstellar extinction

Mar 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...220..831b&link_type=abstract

Astrophysical Journal, Part 1, vol. 220, Mar. 15, 1978, p. 831-835.

Astronomy and Astrophysics

Astronomy

226

Galactic Nuclei, Infrared Astronomy, Interstellar Extinction, Interstellar Matter, M Stars, Molecular Absorption, Infrared Radiation, Silicates, Supergiant Stars

Scientific paper

Infrared observations of the compact sources and background in the galactic center are used to derive the 1.25-12.5-micron interstellar extinction law. The depth of the interstellar 10-micron silicate absorption feature is derived from observations of the M supergiant IRS 7. The ratio of visual to silicate extinction is found to be 8 + or - 3. From the colors of individual sources and the background, it is concluded that there are no more than 6 mag of visual extinction within the central 3 pc of the galactic center.

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