Ghosh, S. K. ; Drapatz, S. ; Peppel, U. C. (1986) Very small particles in spiral galaxies Astronomy and Astrophysics, 167 . pp. 341-350. ISSN 0004-6361
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Abstract
The existence of a hot component of very small dust particles in normal spiral galaxies has been inferred from a statistical study of their infrared emission as measured by IRAS. Our galaxy has been demonstrated to be a typical spiral and is used to investigate various emission sources for mid-infrared radiation. Young and evolved discrete objects are shown to be of minor importance. Rather, evidence is presented for the diffuse nature of the mid-infrared radiation of galaxies. A fairly quantitative treatment of the emission process leads to the observed quantities.
Item Type: | Article |
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Source: | Copyright of this article belongs to EDP Sciences. |
Keywords: | Interstellar Dust; Spiral Galaxies; Mid-Infrared Emission; H II Regions; IRAS |
ID Code: | 97149 |
Deposited On: | 23 Jan 2013 09:26 |
Last Modified: | 19 May 2016 09:21 |
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