NDLI: The origin of the diffuse galactic ir/submm emission: revisited after iras

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The origin of the diffuse galactic ir/submm emission: revisited after iras

Content Provider	NASA Technical Reports Server (NTRS)
Author	Cox, P. Mezger, P. G.
Copyright Year	1987
Description	Balloon observations are compared with Infrared Astronomy Satellite observations. There was good agreement for the longitudinal profiles. However, the dust emission observed by IRAS, contrary to the balloon observations which show dust emission only within the absolute value of b is equal to or less than 3 degrees, extends all the way to the galactic pole. The model fits were repeated using more recent parameters for the distribution of interstellar matter in the galactic disk and central region. The IR luminosities are derived for the revised galactic distance scale of solar radius - 8.5 Kpc. A total IR luminosity of 1.2 E10 solar luminosity is obtained, which is about one third of the estimated stellar luminosity of the Galaxy. The dust emission spectrum lambdaI(sub lambda) attains it maximum at 100 microns. A secondary maximum in the dust emission spectrum occurs at 10 microns, which contains 15% of the total IR luminosity of the Galaxy. The galactic dust emission spectrum was compared with the dust emission spectra of external IRAS galaxies. The warm dust luminosity relates to the present OB star formation rate, while flux densities observed at longer submm wavelengths are dominated by cold dust emission and thus can be used to estimate gas masses.
File Size	751875
Page Count	13
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19870014836
Archival Resource Key	ark:/13960/t3227sv09
Language	English
Publisher Date	1987-05-01
Access Restriction	Open
Subject Keyword	Space Radiation Interstellar Radiation Balloon-borne Instruments Diffuse Radiation Infrared Astronomy Infrared Astronomy Satellite Stellar Luminosity Star Formation Rate Galactic Structure Dust Radio Astronomy Star Formation Emission Spectra Astronomical Models Submillimeter Waves Interstellar Matter Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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