Distribution, sizes, and luminosity function of the HII regions in NGC 4321

Bibcode
1990A&AS...83..211C
Cepa, J.; Beckman, J. E.
Bibliographical reference

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 83, no. 2, May 1990, p. 211-223.

Advertised on:
5
1990
Number of authors
2
IAC number of authors
2
Citations
41
Refereed citations
37
Description
From H-alpha CCD observations taken with the 4.2-m William Herschel Telescope, a catalog of 456 H II regions of the inner zone of the spiral galaxy NGC 4321 has been compiled. The radial distribution, the distribution of diameters, and the luminosity function for the arm and the interarm H II regions are presented, together with the spatial dependence of the product of the filling factor and the electron density of the H II regions. Newly discovered H-alpha emission features are shown surrounding the nuclear zone, which itself seems to be an H-alpha emitter.
Type
Refereed
H II regions
Spiral galaxies
Telescopes

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