Constraining the very high-redshift tail of Submillimeter Galaxies
Helmut DANNERBAUER
CEA
Résumé :
The last years impressively showed that to understand the
assembly and formation of massive galaxies, it is critical
to study Submillimeter Galaxies (SMGs). Since their first
detection more than ten years ago, several hundred dust-enshrouded
high-z sources have been selected through ground-based
submm/mm imaging with bolometer cameras like SCUBA, LABOCA,
AzTEC or MAMBO, opening a new exciting era in observational
cosmology and giving an important route to investigate star
formation and the formation of spheroids in the distant universe.
One of the current key topics in galaxy formation and assembly
is to obtain an accurate estimate of the number of SMGs at z>4,
thus to get a complet census of the star-formation at the most
distant redshifts and add missing bits on the obscured universe
at extreme redshifts to the Lilly-Madau Plot. I will discuss
different approaches to find dusty starbursts at redshifts
beyond z=4 and present our on-going Herschel and IRAM efforts
on this research topic. Finally, I will discuss the prospects
of ALMA studies on dusty starbursts in the very high-z universe.
