Spectroscopy of H II regions in the late-type spiral galaxy NGC 6946

被引:0
作者
A. S. Gusev
F. H. Sakhibov
S. N. Dodonov
机构
[1] Lomonosov Moscow State University,Sternberg State Astronomical Institute
[2] University of Applied Sciences of Mittelhessen,Special Astrophysical Observatory
[3] Russian Academy of Sciences,undefined
来源
Astrophysical Bulletin | 2013年 / 68卷
关键词
galaxies: abundances; galaxies: interstellar medium; galaxies: spiral; galaxies: individual: NGC6946;
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摘要
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 2.1 Å/px and spectral resolution of 10 Å. 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.
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页码:40 / 52
页数:12
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