The origin of the far-infrared luminosity from spiral galaxies

Abstract

view Abstract Citations (128) References (38) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Origin of the Far-Infrared Luminosity from Spiral Galaxies Devereux, Nicholas A. ; Young, Judith S. Abstract The relationship between the far-infrared and Hα luminosity has been investigated for a sample of 124 spiral galaxies. After correcting the Hα luminosities for an average 1 mag of extinction and extrapolating the IRAS 40-120 micron luminosity to 1000 microns, we find that the mean ratio of Hα to far-infrared luminosity is comparable to that expected from H II regions powered by stars with masses > 6 M_sun_. This result constitutes strong evidence in support of the view that high-mass (> 6 M_sun_) O and B stars are responsible for both the Hα and far-infrared emission in spiral galaxies of high, >= 1 x 10^9^ L_sun_, far-infrared luminosity. Publication: The Astrophysical Journal Pub Date: February 1990 DOI: 10.1086/185659 Bibcode: 1990ApJ...350L..25D Keywords: Far Infrared Radiation; H Alpha Line; Interstellar Extinction; Luminosity; Spiral Galaxies; B Stars; H Ii Regions; Stellar Mass; Astrophysics; GALAXIES: STELLAR CONTENT; INFRARED: GENERAL full text sources ADS |

Keywords

Related Publications