Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002rmxac..12..238c&link_type=abstract
Ionized Gaseous Nebulae, a Conference to Celebrate the 60th Birthdays of Silvia Torres-Peimbert and Manuel Peimbert, Mexico City
Astronomy and Astrophysics
Astronomy
1
Galaxies: Individual (Ngc 628, Ngc 925, Ngc 1232, Ngc 1637), H Ii Regions
Scientific paper
We have made long-slit spectrophotometric observations in the optical and near infrared of 15 H II regions in different spiral galaxies (NGC 628, NGC 925, NGC 1232 and NGC 1637). These spectrophotometric observations were performed with a wide spectral coverage and at a resolution high enough to detect and measure both weak auroral forbidden lines and Wolf-Rayet features. Electron temperatures have been derived in order to investigate the ionization structure and to derive the chemical composition of the gas in these regions. Therefore, we have selected from the literature (Van Zee et al. 1998) those H II regions with solar or oversolar abundance, as deduced from empirical calibrations based on the optical oxygen forbidden lines.
Castellanos Marcelo
Diaz Angeles I.
Terlevich Elena
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