Spectroscopy of H II Regions in the Late-Type Spiral Galaxy NGC 6946

Abstract

We present the results of spectroscopy of 39 H II regions in the spiral galaxy NGC 6946. The spectral observations were carried out at the 6-m BTA telescope of the SAO RAS with the SCORPIO focal reducer in the multi-slit mode with the dispersion of 2.1A/px and spectral resolution of 10A. The absorption estimates for 39 H II regions were obtained. Using the "strong line" method (NS-calibration) we determined the electron temperature, and the abundances of oxygen and nitrogen for 30 H II regions. The radial gradients of O/H and N/H were constructed.

arXiv comment11 pages, 9 figures, 5 tables. Published in Astrophysical Bulletin

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• A spectral and photometric study of 102 star forming regions in seven spiral galaxies
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