Cosmological Challenges of Dwarf Galaxies

Cosmological Challenges of Dwarf Galaxies A prime challenge to our understanding of galaxy formation concerns the scarcity of dwarf galaxies compared with the numerous low-mass halos expected in the current LCDM paradigm. This is usually accounted for by assuming that...

Signatures of the coupling between dark energy and dark matter

Signatures of the coupling between dark energy and dark matter I will first introduce the motivations for studying the interaction between dark energy and dark matter. Then I will report on the signatures of the interaction between dark energy and dark matter coming...