Sub-mm observations of IRAS galaxies

Details Sub-mm observations of IRAS galaxies Sub-mm observations of IRAS galaxies

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...166l...8c&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 166, no. 1-2, Sept. 1986, p. L8-L10.

Astronomy and Astrophysics

Astronomy

77

Galactic Nuclei, Infrared Astronomy Satellite, Spiral Galaxies, Star Formation, Astronomical Catalogs, Peculiar Galaxies, Point Sources, Star Formation Rate, Submillimeter Waves

Scientific paper

26 galaxies from the IRAS point source catalogue have been observed at 350 and 1300 μm. The FIR spectra from 25 to 1300 μm are interpreted in terms of two dust components of about 16 and 53K. Flux densities at 1300 μm are used to estimate the total gas mass Mg. The warm dust luminosity LW is considered to be proportional to the star formation rate of massive stars. LW is found to be proportional to Mg0.9 in the mass range 3×108 ≤ Mg/M_sun; ≤ 1012. The efficiency of star formation seems to be four times higher in barred and peculiar galaxies than in Sc types.

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