The Carbon Abundance in the Wolf-Rayet Shell Nebula NGC 6888

Details The Carbon Abundance in the Wolf-Rayet Shell Nebula NGC 6888 The Carbon Abundance in the Wolf-Rayet Shell Nebula NGC 6888

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..348..334m&link_type=abstract

Astrophysics in the Far Ultraviolet: Five Years of Discovery with FUSE ASP Conference Series, Vol. 348, Proceedings of the Confe

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present FUSE observations of HD 192163, the Wolf-Rayet star responsible for the shell nebula NGC 6888. In particular we focus on the spectrum over 974-979 Å, which we use to probe the carbon abundance within a rarefied shell external to the visible nebula. Absorption in the C III 977 Å line permits an estimate of the C2+ column density from the circumstellar material. Using a model for the shell in conjunction with previous study of the nebula, we infer a total carbon abundance of 12 + log(C/H) = 7.6 ± 0.3, about one-tenth the solar value. Comparison with models of the chemical evolution of massive stars shows agreement with the expected mass of the progenitor star, but only for models with high stellar rotation rates.

Affiliated with

Also associated with

No associations

Rating

The Carbon Abundance in the Wolf-Rayet Shell Nebula NGC 6888 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 Carbon Abundance in the Wolf-Rayet Shell Nebula NGC 6888, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Carbon Abundance in the Wolf-Rayet Shell Nebula NGC 6888 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1860287