Molecular gas content and star formation modes in high redshift massive galaxies
Emanuele DADDI
CEA
Résumé :
I will present results from our ongoing surveys probing the molecular
gas content of distant galaxies with the IRAM Plateau de Bure and VLA
interferometers. We recently discovered that ordinary $near-IR$ selected
galaxies at $z>1$ are very luminous CO emitters and can be routinely observed
and studied already with existing facilities. We also unveiled
a substantial population of $z>4$ bright submm galaxies in the $GOODS-N$ field
Star formation modes in the distant Universe can be understood in terms
of the spiral/ULIRG duality that is well characterized locally.