1996A&A...312..283C

Query : 1996A&A...312..283C

1996A&A...312..283C - Astronomy and Astrophysics, volume 312, 283-288 (1996/8-1)

The HI bubble surrounding the Wolf-Rayet star WR149.

CAPPA C.E., NIEMELA V.S., HERBSTMEIER U. and KORIBALSKI B.

Abstract (from CDS):

Neutral hydrogen 21-cm observations obtained with the 100-m Effelsberg telescope have disclosed a HI bubble surrounding the WN6-7 star WR149, located in the far side of the Perseus spiral arm. With a radius of 57pc and an expansion velocity of about 10km/s, this new bubble appears similar to those previously found around other Wolf-Rayet stars. Since stars of WN6-7 spectral sub-type are often found in open clusters and associations, we suggest that the observed HI bubble may be related to an undetected OB association. A second HI void in the neighbourhood is briefly discussed.

Abstract Copyright: ∼

Journal keyword(s): ISM: bubbles - stars: individual: WR 149 - stars: Wolf-Rayet - radio lines: ISM

Simbad objects: 11

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Number of rows : 11
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 Ass Per OB 1 As* 02 21 +57.6           ~ 174 1
2 Ass Per OB 2 As* 03 42.2 +33 26           ~ 338 0
3 NAME Rosette OB Association As* 06 31.7 +04 58           ~ 144 0
4 Ass Car OB 1 As* 10 38 -59.0           ~ 162 0
5 Ass Car OB 2 As* 11 08 -60.2           ~ 82 0
6 NAME Upper Centaurus Lupus As* 15 24 -41.9           ~ 472 1
7 NAME Upper Sco Association As* 16 12 -23.4           ~ 1369 1
8 Ass Ara OB 1 As* 16 39.5 -46 46           ~ 93 0
9 WR 149 WR* 21 07 11.6933616840 +48 25 36.238552680   15.90 14.70     WN5-s 45 0
10 NAME I Lac As* 22 41 +38.5           ~ 151 0
11 NAME III CEP ASSOC As* 23 04.2 +63 24           ~ 322 0

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