Scientific Seminars

The galaxy population of the most star forming protoclusters at cosmic noon

Mari Polletta
INAF - IASF Milano

2021-11-23    11:00    Brera - CUPOLA FIORE + sala virtuale -meet.google.com/voo-iecc-eko

At cosmic noon the universe was extremely active, galaxies experienced the heyday of their star formation activity, the first structures started to assemble, and the intergalactic medium shaped up. Overdensities of highly star forming galaxies during such an epoch are thought to be the progenitors of today's galaxy clusters, the so-called protoclusters. Taking advantage of the bright sub-mm emission of these galaxies, and of the all-sky sub-mm images obtained with the Planck satellite, more than 2000 protocluster candidates at z~2-3 have been identified. I will present the results obtained through an on-going multi-wavelength follow-up program of some of these protoclusters and our current understanding of the origin of their prodigious star forming activity, of their evolution, and of the properties of the member galaxies.