| Description |
Using data from the NASA Wide-field Infrared Survey Explorer (WISE) mission
coupled with deep optical spectroscopy, we have discovered a new population
of dusty zvirgul2 galaxies surrounded by large spatially extended Lyman-alpha
emission (40-100kpc). These galaxies have redder mid-IR colors than any
other high-z dusty populations, inferred IR luminosities of L_FIR>10^13, are
unlensed, and are experiencing intense AGN/supernova feedback. These unique
properties, and rarity on the sky, make them strong candidates for being one of
the ..missing links. in the evolution of massive ellipticals. They have opened
up a new regime where spatially extended Ly-alpha and large amounts of dust
are likely linked at the key transition from a dusty starburst to a QSO.
We request 5.6 hours to obtain Herschel-PACS and SPIRE imaging of *all* 18
spectroscopically confirmed WISE Ly-alpha blobs. Herschel is the only facility
that fully probes the peak of the bolometric emission at this redshift. These
observations are required in order to 1) derive precise FIR luminosities 2) place
robust constraints on the starburst and AGN components 3) study how feedback
effects the shape of far-IR seds at high-z 4) uncover what is driving the winds
responsible for powering the Ly-alpha clouds around these dusty galaxies and
5) place this new class of extreme object in context with the other well studied
zvirgul2 dusty galaxies. |
