Spectral Line Surveys of Evolved Stars

Details Spectral Line Surveys of Evolved Stars Spectral Line Surveys of Evolved Stars

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..280..237c&link_type=abstract

The Molecular Universe, Proceedings of the International Astronomical Union, IAU Symposium, Volume 280, p. 237-248

Astronomy and Astrophysics

Astronomy

Astrochemistry, Line: Identification, Surveys, Stars: Agb And Post-Agb

Scientific paper

The observation of evolved stars in selected evolutionary stages allow us to track the evolution of the physical properties and chemical composition of the matter that is being returned to the interstellar medium during these last stages of the life of stars. While the dust component can be characterized through the observation of the spectral energy distribution in the infrared part of the spectrum, spectral line surveys carried out in a wide spectral band provide the best probe of the physical properties and chemical composition of the gas phase. In this lecture we review the different line surveys carried out toward these objects and their impact in our understanding of the chemical complexity evolution in the circumstellar envelopes around evolved stars.

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