An H I bubble related to the WC star HD 88500

Details An H I bubble related to the WC star HD 88500 An H I bubble related to the WC star HD 88500

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986aj.....92.1414c&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 92, Dec. 1986, p. 1414-1419.

Astronomy and Astrophysics

Astronomy

19

Bubbles, Hydrogen Clouds, Spatial Distribution, Stellar Mass Ejection, Stellar Spectrophotometry, Wolf-Rayet Stars, Mass Distribution, O Stars, Radio Spectra, Stellar Evolution, Stellar Winds, Visible Spectrum

Scientific paper

The observed H I distribution in the neighborhood of the Wolf-Rayet star HD 88500 = WR 17 shows the presence of a nonspherical cavity, most probably related to the star. This H I void has a radius of 50 pc, an expansion velocity of 8 km s-1 and missing mass of 6×103M_sun;. These observed parameters are remarkably coincident with those predicted theoretically by the action of a strong stellar wind (of the now WR star and its massive O type progenitor) in a cloudy interstellar medium allowing for the effects of the star's ionizing radiation. The observed H I bubble seems to be in the momentum conserving case.

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