000002760 001__ 2760
000002760 005__ 20160701171710.0
000002760 037__ $$aASTROimport-917
000002760 100__ $$aGroenewegen, M.
000002760 245__ $$aLuminosities and mass-loss rates of Local Group AGB stars and Red Supergiants
000002760 260__ $$c2013
000002760 520__ $$aDusty radiative transfer models are presented for 210 carbon stars and 166 oxygen-rich evolved stars in the Magellanic Clouds and other nearby dwarf galaxies for which Spitzer IRS spectra are available. The spectra are complemented with available optical and infrared photometry to construct spectral energy distributions. A dust radiative transfer code and a minimisation procedure are used to determine the best-fitting luminosity and mass-loss rate. This presentation focuses on the mass-loss rates determined for the carbon stars. The potentially most interesting result is that a significant number of stars, about 5% of the sam˙ exp )/(L/c) (the ratio of the matterple, has a mass-loss rate that translates to a value of β ≡ (Mv momentum flux to the photon-momentum flux) which is larger than the single-scattering limit and up to a value of ˜10. If confirmed, this result would impact stellar evolution models which sometimes limit the mass-loss rate to β = 1. A full paper will follow with a more complete presentation for the larger sample. 
000002760 700__ $$a Sloan, G. C.
000002760 773__ $$c94$$pProceedings of The Life Cycle of Dust in the Universe: Observations, Theory, and Laboratory Experiments (LCDU2013). 18-22 November, 2013. Taipei, Taiwan. Editors: Anja Andersen (University of Copenhagen, Denmark), Maarten Baes (Universiteit Gent, Belgium), Haley Gomez (Cardiff University, UK), Ciska Kemper (Academia Sinica, Taiwan), Darach Watson (University of Copenhagen, Denmark). Online at http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=207, id.94$$y2013
000002760 85642 $$ahttp://esoads.eso.org/abs/2013lcdu.confE..94G
000002760 905__ $$apublished in
000002760 980__ $$aNONREF