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The Size Distribution of HII Regions as a New Variant to Determine the Distances of Galaxies
Author(s) -
Issa I. A.
Publication year - 1981
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.2103020509
Subject(s) - physics , astrophysics , galaxy , hubble sequence , astronomy , luminous infrared galaxy
The apparent radii of some HII regions in the galaxies NGC 224, NGC 2403, NGC 300, NGC 598 and NGC 1313 were determined. The size distribution of the apparent radii of the HII regions in these galaxies were studied. Two variants are suggested to determine the distances of these galaxies. The reliability of these variants could be seen by comparison with the distances determined by other methods.