Do giant H II regions preferentially form in the outer disks of galaxies?

Details Do giant H II regions preferentially form in the outer disks of galaxies? Do giant H II regions preferentially form in the outer disks of galaxies?

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pasp...96..944k&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 96, Dec. 1984, p. 944-946.

Astronomy and Astrophysics

Astronomy

10

Galactic Structure, H Ii Regions, Stellar Evolution, Abundance, Cosmic Dust, Disk Galaxies, Galactic Nuclei, Statistical Tests

Scientific paper

Published data on the H II region distributions in 65 galaxies (Hodge and Kennicutt, 1983) are used to test the commonly quoted observation that the largest star-forming regions in galaxies preferentially occur in the outer disk. Although a few nearby and well-studied galaxies do exhibit this effect, simple statistical tests indicate that in general there is no significant difference between the radial locations of the large star-forming regions and the general disk population. It is suggested that radially varying parameters such as metal abundance and dust content may not be the key parameters influencing the number and size of star-forming regions in a galaxy.

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