Large-scale Galactic dust morphology and physical conditions from IRAS observations

Abstract

view Abstract Citations (67) References (37) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Large-Scale Galactic Dust Morphology and Physical Conditions from IRAS Observations Sodroski, T. J. ; Dwek, E. ; Hauser, M. G. ; Kerr, F. J. Abstract The authors present IRAS observations of the 60 and 100 μm Galactic plane emission, from which the contribution of the zodiacal light has been subtracted. Assuming an isothermal dust distribution along each line of sight in the Galactic plane, the authors derive temperature, optical depth, and total far-infrared brightness profiles of the emission. Combining these quantities with available 12CO, 5 GHz radio continuum, and H I data, the authors then derive longitude profiles of the dust-to-gas mass ratio, the infrared luminosity per hydrogen mass, and the infrared excess ratio in the Galaxy. Publication: The Astrophysical Journal Pub Date: November 1987 DOI: 10.1086/165707 Bibcode: 1987ApJ...322..101S Keywords: Astronomical Spectroscopy; Galactic Structure; Infrared Spectra; Interstellar Matter; Milky Way Galaxy; Spaceborne Astronomy; Far Infrared Radiation; Infrared Astronomy Satellite; Optical Thickness; Temperature Distribution; Zodiacal Light; Astrophysics; GALAXIES: THE GALAXY; INTERSTELLAR: GRAINS; INTERSTELLAR: MATTER; INTERSTELLAR: MOLECULES; INFRARED: SOURCES full text sources ADS |