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Last name: BERNARD
First name: Edouard
International audience
Context. Apparent deviations between properties of dwarf galaxies from observations and simulations are known to exist, such as the "Missing Dwarfs" problem, the too-big-to-fail problem, and the cusp-core problem, to name a few. Recent studies have shown that these issues can at least be partially resolved by taking into account the systematic...
Accurate distances to individual Milky Way stars provided by Gaia have allowed us to derive stellar age distributions from colour-magnitude diagrams (CMD) representative of the thick disc and the local halo. The CMD for the kinematically selected halo stars showed an enigmatic double main sequence. The blue sequence had been linked to a major...
International audience