The mass loss of C-rich giants

Details The mass loss of C-rich giants The mass loss of C-rich giants

2006-01-17

arxiv.org/abs/astro-ph/0601366v1

Astron.Astrophys. 429 (2005) 235-246

Astronomy and Astrophysics

Astrophysics

12 pages, 2 figures, electronic table 3 (2 files included in the archive), A&A, accepted 23 July 2004

Scientific paper

10.1051/0004-6361:20041280

(Shortened version): The mass loss rates, expansion velocities and dust-to-gas density ratios from millimetric observations of 119 carbon-rich giants are compared, as functions of stellar parameters, to the predictions of recent hydrodynamical models. Distances and luminosities previously estimated from HIPPARCOS data, masses from pulsations and C/O abundance ratios from spectroscopy, and effective temperatures from a new homogeneous scale, are used. Predicted and observed mass loss rates agree fairly well, as functions of effective temperature.(shortened). Four stars with detached shells, i.e. episodic strong mass loss, and five cool infrared carbon-rich stars with optically-thick dust shells, have mass loss rates much larger than predicted values.(shortened). Recent drift models can contribute to minimize the discrepancy since they include more dust. Simple approximate formulae are proposed.

Affiliated with

Also associated with

No associations

Rating

The mass loss of C-rich giants 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 mass loss of C-rich giants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The mass loss of C-rich giants will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-228689