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Dust emission from high latitude cirrus cloudsIn order to study dust emission from grains in the interstellar medium, the infrared properties were analyzed in a number of isolated high latitude dust clouds which contain no dominant internal heating sources. The clouds are spatially resolved, have a simple geometry, and are mapped in the IRAS bands at 12, 25, 60, and 100 microns. For a number of these clouds, extinction data (A sub B) were obtained from starcounts. A large part (30 to 50 percent) of the infrared radiation of the clouds in the IRAS wavelength range of 8 to 130 micron is emitted in the short wavelength bands at 12 and 25 micron. The 60/100 micron ratios for the integrated fluxes of the clouds have a typical value of 0.19 + or - 0.05.
Document ID
19910005617
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Laureijs, Rene J.
(Kapteyn Astronomical Lab. Groningen, Netherlands)
Chlewicki, Grzegorz
(Kapteyn Astronomical Lab. Groningen, Netherlands)
Clark, F. O.
(Kapteyn Astronomical Lab. Groningen, Netherlands)
Wesselius, P. R.
(Kapteyn Astronomical Lab. Groningen, Netherlands)
Date Acquired
September 6, 2013
Publication Date
December 1, 1989
Publication Information
Publication: NASA, Ames Research Center, Interstellar Dust: Contributed Papers
Subject Category
Astrophysics
Accession Number
91N14930
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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