X-RAYS FROM THE FIRST MASSIVE BLACK HOLES
W.N. Brandt, C. Vignali
Penn State University
X-ray studies of high-redshift (z > 4) active galaxies have advanced
substantially over the past two years, largely due to results from the
new generation of X-ray observatories. We will review these results
and discuss their implications for the first massive black holes and
their young host galaxies. In particular, we will focus on constraints
on quasar energetics and environments from a systematic Chandra and
XMM-Newton study of the highest redshift known quasars, mostly found
by the Sloan Digital Sky Survey. We will also present results from
the Chandra Deep Field North Survey which constrain the number density
of extreme redshift active galaxies at z = 6-10. Finally, we will
describe how these studies are laying crucial observational groundwork
for future missions including Constellation-X, XEUS, and Generation-X.
astro-ph/0203511