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Modelling chromospheric line profiles as diagnostics of velocity fields in ω Centauri red giant stars
line profiles globular clusters individual atmospheres mass loss
2010/11/11
Context. Mass loss of ∼ 0.1-0.3 M⊙ from Population II red giant stars (RGB) is a requirement of stellar evolution theory in order to account for several observational evidences in globular clust...
David vs. Goliath: pitfalls and prospects in abundance analyses of dwarf vs. giant stars
Solar and Stellar Astrophysics (astro-ph.SR) Galaxy Astrophysics (astro-ph.GA)
2010/12/29
I review some of the current limitations in modelling stellar atmospheres of solar-type stars and approaches to overcome them.