The properties of intensely star-forming galaxies 1 Gyr after the Big Bang
by
Matthew Lehnert(Observatoire Paris-Meudon)
→
Europe/Stockholm
Klein Auditorium
Klein Auditorium
Description
I discuss the properties of Lyman Break galaxies (LBGs) at z > 5 as
determined from desperate fields covering approximately 500 arcmin2. I focus on the
detailed physical properties of the sources
in this large survey (~100 with spectroscopic redshifts). Specifically,
I discuss ensemble mass estimates, stellar mass surface densities, core
phase space densities, star-formation intensities, characteristics of
their stellar populations, etc as obtained from multi-wavelength data
(rest-frame UV through optical). I also discuss some caveats in the current
interpretations often cited in the literature. The general picture that emerges from
these studies is that these galaxies, observed about 1 Gyr after the Big Bang, have
properties consistent with being the progenitors of the densest stellar systems in the
local Universe -- the centers of old bulges and early type galaxies.