The HI bubble surrounding the "field" O-type star HD 155913: disclosing a new OB association?

C. E. CAPPA; V. S. NIEMELA; P. BENAGLIA

Congreso; LARIM 1998; 1998

The authors study the distribution of the neutral gas in the neighbourhood of the O5 Vn((f)) star HD 155913 based on observations of the 21 cm H I line. The distribution of neutral gas in the environs of the O5 star shows an interstellar bubble probably created by the stellar wind. Several other early type stars at comparable distances, are seen projected onto the borders of the H I bubble. The authors suggest that they may belong to an unknown OB association.