Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.170..297c&link_type=abstract
(IAU, European Regional Astronomy Meeting, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics and Space Science (ISSN 0004-640
Astronomy and Astrophysics
Astrophysics
2
Astronomical Photometry, H Ii Regions, Spiral Galaxies, Stellar Luminosity, Telescopes, Accretion Disks, Electron Density (Concentration), Galactic Structure, H Alpha Line, Star Formation
Scientific paper
High-resolution maps of the spiral galaxies NGC 3992 and NGC 4321, obtained with the Taurus camera at the 4.2-m William Herschel Telescope are analyzed. The results obtained include (1) the total number of separately identifiable H II regions in their disks (classified according to their membership of a spiral arm or the interarm disk, (2) the radial distribution of H II regions, (3) the frequency distribution of diameters of H II regions, and (4) the luminosity function.
Beckman John E.
Cepa Jordi
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