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

Perez, Enrique; Gonzalez Delgado, Rosa M.
Referencia bibliográfica

Astrophysical Journal Supplement v.108, p.199

Fecha de publicación:
1
1997
Número de autores
2
Número de autores del IAC
1
Número de citas
52
Número de citas referidas
49
Descripción
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.