H II Region Population in a Sample of Nearby Galaxies with Nuclear Activity. II. Luminosity Function, Size, and Radial Distributions

Details H II Region Population in a Sample of Nearby Galaxies with Nuclear Activity. II. Luminosity Function, Size, and Radial Distributions H II Region Population in a Sample of Nearby Galaxies with Nuclear Activity. II. Luminosity Function, Size, and Radial Distributions

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apjs..108..199g&link_type=abstract

Astrophysical Journal Supplement v.108, p.199

Astronomy and Astrophysics

Astronomy

33

Galaxies: Active, Galaxies: Ism, Galaxies: Nuclei, Galaxies: Photometry, Galaxies: Seyfert

Scientific paper

This paper presents the second part of an extensive study of the properties of the H II region population in a sample of spiral galaxies with active nucleus. This study comprises some 2000 H II regions, distributed in 27 out of the 55 galaxies in the original sample, observed in narrow-band H alpha CCD imaging. About 70% of these H II regions are calibrated in absolute flux. We present the luminosity function, size distribution, the relationship between the H alpha flux and the size, the emission measure, and the radial distribution of the H II regions in each galaxy. We analyze the main properties of the H II regions attending to the Hubble type and to the level of nuclear activity of the host galaxy.

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