1.25-mm observations of luminous infrared galaxies
Abstract
Measurements at a wavelength of 1.25 mm have been obtained for 17 IRAS galaxies selected on the basis of high far-infrared luminosity. These measurements are used to estimate the lower and upper limits to the mass of cold dust in infrared galaxies. As a lower limit on dust mass, all of the galaxies can be successfully modeled without invoking any dust colder than the dust responsible for the 60 and 100 um emission that was detected by IRAS. As an upper limit, it is possible that the dust mass in a number of galaxies may actually be dominated by cold dust. This large difference between the lower and upper limits is due primarily to uncertainty in the long wavelength absorption efficiency of the astrophysical dust grains.
Additional Information
© 1992 Astronomical Society of the Pacific. Received 1992 February 18; accepted 1992 July 24. We thank the staff at Mauna Kea for their assistance during the observing runs. Support for the CSO is provided by the NSF under Contract No. AST 9015755. David P. Carico, B. T. Soifer, and G. Neugebauer are supported by grants from NASA and the NSF.Attached Files
Published - 1992PASP__104_1086C.pdf
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Additional details
- Eprint ID
- 74632
- Resolver ID
- CaltechAUTHORS:20170301-092036585
- NSF
- AST-9015755
- NASA
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2017-03-01Created from EPrint's datestamp field
- Updated
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2021-11-11Created from EPrint's last_modified field