New spectral classifications for O-type stars in the Northern Hemisphere

Details New spectral classifications for O-type stars in the Northern Hemisphere New spectral classifications for O-type stars in the Northern Hemisphere

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pasp..103..347g&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 103, April 1991, p. 347-354.

Astronomy and Astrophysics

Astronomy

11

O Stars, Spectrum Analysis, Stellar Spectra, Helium, Parallax, Star Clusters, Stellar Luminosity, Visible Spectrum, Wolf-Rayet Stars

Scientific paper

In order to update the classifications of O and B stars in the vicinity of the sun, moderate-resolution spectra have been obtained in the wavelength region about 4000 A to about 5000 A of 32 O and B stars without published luminosity classifications. Normalized spectra and revised spectral classifications are presented. Two of the stars are found to be members of the O3 spectral class.

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