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Accueil > Séminaires > Milky Way Archaeology from Cepheids

Milky Way Archaeology from Cepheids

Bertrand Lemasle

Cepheids are excellent tracers of young stellar populations (20-300
Myr). They are famous for providing very accurate distances, their ages
are also very well known and, more generally, their physics is well
understood. Moreover, their spectra show well-defined absorption lines
leading to reliable abundances for numerous elements. For all these
reasons they have been used for almost 30 years to study the Milky Way
chemical evolution. In this talk I will discuss specific challenges
related to the analysis of Cepheid spectra and present some recent
results using Galactic Cepheids. I will also say a few words about
future perspectives in terms of observing facilities and analysis