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Analysis and interpretation of SOAR spectra of symbiotic stars in the Magellanic Clouds

Grant number: 09/08235-1
Support type:Research Grants - Visiting Researcher Grant - International
Duration: September 11, 2009 - October 01, 2009
Field of knowledge:Physical Sciences and Mathematics - Astronomy
Principal Investigator:Roberto Dell'Aglio Dias da Costa
Grantee:Roberto Dell'Aglio Dias da Costa
Visiting researcher: Gerardo Juan Manuel Luna
Visiting researcher institution: Harvard Smithsonian Center for Astrophysics (CfA), United States
Home Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

The study of symbiotic stars makes possible a particularly convenient approach to investigate the chemical enrichment processes of intermediate mass stars and interstellar medium for a given stellar system. Using SOAR and the high throughput Goodman spectrograph, we observed, for the first time, a sample of faint symbiotic stars in the Magellanic Clouds. Results derived from this sample will allows us to better describe the chemical enrichment processes in the MC and compare them to previous results obtained from planetary nebulae samples in these galaxies. (AU)