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Cold dust in galaxies

Eales, Stephen Anthony, Wynn-Williams, C. G. and Duncan, W. D. 1989. Cold dust in galaxies. Astrophysical Journal 339 , pp. 859-871. 10.1086/167341

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This paper presents 350-1100-micron continuum observations of the central regions of 11 spiral galaxies. Combining the submillimeter fluxes with IRAS data, it is found that the 60-1100-micron energy distributions of these galaxies can be well fitted by thermal emission from dust at a single temperature (T about 30-50 K). No direct evidence is found for the cold (T less than about 20 K) dust expected if dust is being heated by the interstellar radiation field of a normal galaxy. Estimates of the total mass of interstellar matter in these galaxies are lower than those estimated from CO 1-0 line measurements.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: astronomical photometry, cosmic dust, interstellar matter, spiral galaxies; carbon monoxide; infrared astronomy satellite; radiation distribution; spectral energy distribution; temperature distribution; thermal emission
Publisher: IOP Science
ISSN: 0004-637X
Last Modified: 04 Jun 2017 05:03

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