AGB mass loss and carbon stars in the Galactic halo

Details AGB mass loss and carbon stars in the Galactic halo AGB mass loss and carbon stars in the Galactic halo

Nov 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sf2a.conf..511m&link_type=abstract

"SF2A-2008: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: C. Charbonnel, F. Combes

Astronomy and Astrophysics

Astrophysics

Scientific paper

The mass loss of stars on the asymptotic giant branch (AGB) is a critical phenomenon for stellar evolution, but the AGB superwinds are not fully understood and physically modelled. One of the important characteristics that we would like to know is how mass loss depends on metallicity. At low metallicity, evolved AGB stars are carbon stars. From a systematic survey for cool carbon stars in the Galactic halo, we have identified 16 very dusty objects located far (> 2 kpc) from the Galactic plane and at distances of 2 to 20 kpc (Mauron 2008). One of these objects had been detected in CO by Groenewegen et al. (1997), its circumstellar expansion velocity is very small (3 km/s), and it is deficient in oxygen. We suggest that detection of CO from these 16 halo very dusty C stars might yield key information on mass loss at low metallicity.

Affiliated with

Also associated with

No associations

Rating

AGB mass loss and carbon stars in the Galactic halo 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 AGB mass loss and carbon stars in the Galactic halo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and AGB mass loss and carbon stars in the Galactic halo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1287885