Scientific Seminars

Star formation in dark matter halos

Aurelie Penin
Laboratoire d'Astrophysique de Marseille

2014-07-02    11:30    Merate - POE

The cosmic star formation rate has been decreasing from the episode of intense star formation undergone by the Universe at z~1-2 implying the existence of a global process of the quenching of star formation. Similarly there exist local processes of quenching at the scale of the dark matter halo. Indeed, it is well known that star formation is triggered below a preferential halo mass while it is suppressed above. I will show how clustering can be revealing about the link between star formation and dark matter halo mass. First, I will focus on dusty star-forming galaxies through power spectra and bispectra of the anisotropies of the Cosmic Infrared Background. Second, I will introduce a new theoretical framework enabling the understanding of the variation of clustering between blue star-forming and red passive galaxies, thus the quantification of star formation quenching in satellite and central galaxies.