The mass loss of C-rich giants

Abstract

(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.

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

References in corpus (8)

• Models of circumstellar molecular radio line emission: Mass loss rates for a sample of bright carbon stars
• Probing the mass loss history of carbon stars using CO line and dust continuum emission
• Dust formation in winds of long-period variables. V. The influence of micro-physical dust properties in carbon stars
• The superwind mass-loss rate of the metal-poor carbon star LI-LMC 1813 in the LMC cluster KMHK 1603
• Long Period Variable Stars: galactic populations and infrared luminosity calibrations
• Three-component modeling of C-rich AGB star winds III. Micro-physics of drift-dependent dust formation
• MgS in detached shells around carbon stars. Mining the mass-loss history
• Australia Telescope Compact Array imaging of circumstellar HCN line emission from R Scl

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