One-millimeter continuum observations of galactic and extragalactic sources

Details One-millimeter continuum observations of galactic and extragalactic sources One-millimeter continuum observations of galactic and extragalactic sources

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...137..117c&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 137, no. 1, Aug. 1984, p. 117-127.

Astronomy and Astrophysics

Astrophysics

54

Astronomical Spectroscopy, Continuous Spectra, Cosmic Dust, Extragalactic Radio Sources, Galactic Radio Waves, Millimeter Waves, Data Reduction, Emission Spectra, H Ii Regions, Molecular Clouds, Planetary Nebulae, Spiral Galaxies

Scientific paper

The results of continuum measurements at mm and sub-mm wavelengths made with a bolometer in October-November 1982 and February-March 1983 are reported. The campaign was carried out to examine the suitability of the Mt. Lemmon site for construction of a 10 m sub-mm telescope. The survey covered H II regions, warm and cold clouds, spiral galaxies and other objects. Atention was focused on dust properties and linking the radio calibration system with the system used for sub-mm/FIR observations. A summary of the data for the 40 objects observed is provided. Skies free of clouds permitted 1 mm observations. A fast switching mode reduced the sky noise levels to the point that radiometer noise was dominant. Dust color temperatures were 50-60 K for H II regions, 40-50 K for warm clouds and about 20 K for normal spiral galaxies. The cold cloud masses were estimated using flux densities at 1 mm.

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