期刊
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS
卷 33, 期 1, 页码 34-37出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1063773707010045
关键词
stellar effective temperature; HII regions; radio recombination lines
We analyze the calibrations (the dependence of the spectral type of a star on its effective temperature) by comparing the calculated ionization structure of an H II region with that obtained from observations for the source Orion A in radio recombination H and He lines. The effective temperature of the star theta 1 Ori C (the ionization source) is most likely approximate to 37 000 K.
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