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Title:
The temperature of large dust grains in molecular clouds
Authors:
Clark, F. O.; Laureijs, R. J.; Prusti, T.
Affiliation:
AA(USAF, Geophysics Laboratory, Hanscom AFB, MA), AB(JPL, Pasadena, CA), AC(Laboratory for Space Research, Groningen, Netherlands)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 371, April 20, 1991, p. 602-606. (ApJ Homepage)
Publication Date:
04/1991
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Cosmic Dust, Infrared Radiation, Interstellar Gas, Molecular Clouds, Temperature Distribution, Emission Spectra, Infrared Astronomy Satellite, Interstellar Extinction, Temperature Measurement
DOI:
10.1086/169924
Bibliographic Code:
1991ApJ...371..602C

Abstract

The temperature of the large dust grains is calculated from three molecular clouds ranging in visual extinction from 2.5 to 8 mag, by comparing maps of either extinction derived from star counts or gas column density derived from molecular observations to I(100). Both techniques show the dust temperature declining into clouds. The two techniques do not agree in absolute scale.

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