Decomposition of the FIR Milky Way observed by IRAS

Details Decomposition of the FIR Milky Way observed by IRAS Decomposition of the FIR Milky Way observed by IRAS

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...233..437b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 233, no. 2, July 1990, p. 437-455.

Astronomy and Astrophysics

Astronomy

73

Cosmic Dust, Far Infrared Radiation, Infrared Astronomy Satellite, Milky Way Galaxy, Molecular Clouds, Astronomical Models, Carbon Monoxide, H I Regions, H Ii Regions, Hydrogen

Scientific paper

A comparison is made between IRAS observations of dust emitting in the 60- and 100-micron FIR bands and H I and CO surveys covering the entire Milky Way. It is suggested that most of the FIR luminosity of the Galactic disk in the 60 and 100-micron bands at R greater than 2 kpc originates from dust associated with neutral atomic gas and molecular gas heated by the general interstellar radiation field. It is found that the FIR dust emissivity per nucleon decreases dramatically with increasing Galactocentric distance.

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