Molecular gas in intermediate luminosity IRAS galaxies

Details Molecular gas in intermediate luminosity IRAS galaxies Molecular gas in intermediate luminosity IRAS galaxies

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...362..473t&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 362, Oct. 20, 1990, p. 473-479. Research supported by NASA IRAS Extended Mi

Astronomy and Astrophysics

Astronomy

66

Carbon Monoxide, Far Infrared Radiation, Galactic Structure, Infrared Astronomy Satellite, Interstellar Gas, Stellar Luminosity, Hydrogen, Infrared Radiation, Interstellar Matter, Rotational Spectra, Virgo Galactic Cluster

Scientific paper

Single dish CO (J = 1-0) measurements are reported for 29 galaxies of intermediate IR lumionosity in the IRAS Bright Galaxy sample, at distances in the range 20-40 Mpc. Most of the galaxies were mapped at 3-7 points with a 55 arcsec beam. The total H2 masses, assuming a standard Galactic CO-to-H2 conversion ratio, lie in the range of 500 million to 20 billion solar masses. The mean ratio of L(FIR)/M(H2) for this intermediate luminosity sample is approximately three times that found for Virgo spirals and approximately one-third of that found for a sample of higher-luminosity IRAS Bright Galaxies.

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