Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aj....120.3192c&link_type=abstract
The Astronomical Journal, Volume 120, Issue 6, pp. 3192-3200.
Astronomy and Astrophysics
Astronomy
7
Ism: Bubbles, Stars: Individual (Wr 143), Stars: Winds, Outflows, Stars: Wolf-Rayet
Scientific paper
As part of a systematic study of the environment of Galactic WR stars, a region along the line of sight to Cygnus (l=77.5°,b=0°) has been studied. The neutral hydrogen 21 cm line distribution shows the existence of a cavity expanding from the Wolf-Rayet star WR 143. This cavity, created by the stellar wind of the star, has a mean radius of 7 pc (assuming a distance of about 1 kpc), an expansion velocity of more than 8 km s-1, and a missing mass of some 150 Msolar and seems to be surrounded by an H I shell, likely made up of the gas pushed by the star. Although this hole (also called bubble) is quite conspicuous in H I, there seems to be no trace of it at the other wavelengths studied (radio continuum and infrared). All radio observations were obtained at the Dominion Radio Astrophysical Observatory as part of the Canadian Galactic Plane Survey.
Cazzolato François
Pineault Serge
No associations
LandOfFree
The Interstellar Environment of the Wolf-Rayet Star WR 143 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Interstellar Environment of the Wolf-Rayet Star WR 143, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Interstellar Environment of the Wolf-Rayet Star WR 143 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1730759