WR stars with the O VI 3811, 3834 A emission doublet. I - The catalog of the WR-O VI stars and spectroscopic studies of the WR-O VI stars HD 16523, HD 17638, and HD 192103

Details WR stars with the O VI 3811, 3834 A emission doublet. I - The catalog of the WR-O VI stars and spectroscopic studies of the WR-O VI stars HD 16523, HD 17638, and HD 192103 WR stars with the O VI 3811, 3834 A emission doublet. I - The catalog of the WR-O VI stars and spectroscopic studies of the WR-O VI stars HD 16523, HD 17638, and HD 192103

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.167..281c&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 167, no. 2, May 1990, p. 281-296.

Astronomy and Astrophysics

Astrophysics

2

Companion Stars, Emission Spectra, Planetary Nebulae, Stellar Spectra, Wolf-Rayet Stars, Astronomical Catalogs, Light (Visible Radiation), Stellar Mass, Stellar Mass Ejection

Scientific paper

The catalog of the classical WR stars which have the emission doublet Ovi 223811, 3834 in their optical spectra (the catalog of the WR-Ovi stars) and the results of the spectroscopic investigations of the WR-Ovi stars HD 16523, HD 17638, and HD 192103 are presented. Rapid spectral variability of the emission doublet Ovi 223811, 3834 in the spectra of WR-OvI stars HD 16523, HD 17638, and of the emission band 223680-3780 A in the spectra of the WR-Ovi star HD 16523 is observed. It is shown that spectral sub-types of the stars HD 16523 and HD 17638 as estimated from different criteria are uncertain. We argue that the WR-Ovi stars HD 16523 and HD 17638, the optical spectra of which display emission doublet Ovi 223811, 3834, may be considered as W05 stars. The sub-type W05 is proposed for the first time. Classification criteria of the W05 sub-type are represented. The possible contribution of the ions HeII to the emission at 23811 A and 23834 A is investigated. The z-distributions of WR-O vi stars and WR stars with the probable relativistic companions are found to be similar

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