The H II region luminosity function of the Milky Way

Details The H II region luminosity function of the Milky Way The H II region luminosity function of the Milky Way

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989pasp..101..649s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 101, July 1989, p. 649-652.

Astronomy and Astrophysics

Astronomy

19

H Alpha Line, H Ii Regions, Luminosity, Milky Way Galaxy, Radio Astronomy, Molecular Clouds, Spiral Galaxies

Scientific paper

Published radio surveys of H-II regions in the Milky Way are used to derive the radio continuum and equivalent H-alpha luminosity function for the Galaxy. It is found that the Galactic luminosity function can be fitted by a power-law function N(L) proportional to L exp -2.3 + or - 0.5. The luminosity function and the physical properties of the H-II regions are consistent with a Hubble type intermediate between Sb and Sc, based on comparisons with external galaxies. The qualitative resemblance of the Galactic luminosity function with the mass function of Galactic giant molecular clouds is also discussed.

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