HIGH METALLICITY GIANT HII-REGIONS

Authors
TERLEVICH E
Citation
E. Terlevich, HIGH METALLICITY GIANT HII-REGIONS, Revista Mexicana de Astronomia y Astrofisica, 27, 1993, pp. 29-31
Citations number
15
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Revista Mexicana de Astronomia y Astrofisica → ACNP
ISSN journal
01851101
Volume
27
Year of publication
1993
Pages
29 - 31
Database
ISI
SICI code
0185-1101(1993)27:<29:HMGH>2.0.ZU;2-U
Abstract
Abundances of high metallicity (low excitation) HII regions are diffic ult to derive, as the temperature sensitive lambda 4363 angstrom line is very weak or absent in these objects. Empirical methods using stron g emission lines covering a wide spectral range (lambda 3700 to lambda 9600 angstrom) combined with photoionization models provide reliable abundances for these objects.