The mass-loss history of carbon stars probed by CO line and dust continuum emission

Details The mass-loss history of carbon stars probed by CO line and dust continuum emission The mass-loss history of carbon stars probed by CO line and dust continuum emission

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003assl..283..229s&link_type=abstract

In: Mass-losing pulsating stars and their circumstellar matter. Workshop, May 13-16, 2002, Sendai, Japan, edited by Y. Nakada, M

Astronomy and Astrophysics

Astrophysics

Circumstellar Matter, Stars: Agb And Post-Agb, Stars: Late-Type, Mass Loss, Infrared: Stars

Scientific paper

An extensive modeling of CO line emission from the circumstellar envelopes around a number of carbon stars is performed. By combining radio observations and infrared observations obtained by ISO the circumstellar envelope characteristics are probed over a large radial range. The combined data set gives better determined envelope parameters, and puts constraints on the mass loss history of these carbon stars. Moreover, analysis of the dust emission puts further constraints on the mass-loss rate history. The stars presented here are not likely to have experienced any drastic long-term, mass-loss rate modulations, at least less than a factor of about 5, over the past thousands of years.

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