Joint Discussion 10: 3D views on cool stellar atmospheres - theory meets observation

Details Joint Discussion 10: 3D views on cool stellar atmospheres - theory meets observation Joint Discussion 10: 3D views on cool stellar atmospheres - theory meets observation

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010hia....15..331n&link_type=abstract

Highlights of Astronomy, Volume 15, p. 331-343

Astronomy and Astrophysics

Astronomy

Scientific paper

Much of what we know about the chemical composition of the Universe actually stems from the chemical composition of stars, which is often deciphered from the spectra emerging from their atmospheres. Cool, low-mass and long-living stars allow to study the evolution of the Universe's chemistry from a time shortly after the big bang until today. The observation and interpretation of stellar spectra is a classical field in astronomy but is still undergoing vivid developments. The enormous increase in available computational resources opened-up possibilities which led to a revolution in the degree of realism to which modelers can mimic Nature. High-resolution, high-stability, high-efficiency spectrographs are now routinely providing stellar spectra whose full information content can only be exploited if a very much refined description of a stellar atmosphere is at hand.

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