3 citations · 4 across the 8 of their papers we have counts for
5 papers · 1 filter
X-rays from the First Massive Black Holes
W. N. Brandt, C. Vignali, D. P. Schneider +7
X-ray studies of high-redshift (z > 4) active galaxies have advanced substantially over the past few years, largely due to results from the new generation of X-ray observatories. A…
X-ray emission from the most luminous z>4 Palomar Digital Sky Survey Quasars: the Chandra view
C. Vignali, W. N. Brandt, D. P. Schneider +2
We present the results obtained from exploratory Chandra observations of nine high-redshift (z=4.09-4.51) quasars, selected from among the optically brightest Palomar Digital Sky S…
On the nature of Extremely Red Objects: the 2 Ms Chandra Deep Field-North Survey results
C. Vignali, D. M. Alexander, F. E. Bauer +4
Understanding the nature of Extremely Red Objects [EROs; (I-K)>=4] is one of the most challenging issues in observational cosmology. Here we report on the X-ray constraints provide…
Chandra Observations and the Mass Distribution of EMSS1358+6245: Toward Constraints on Properties of Dark Matter
M. W. Bautz, J. S. Arabadjis, G. P. Garmire
Chandra observations of lensing galaxy clusters have now provided accurate dark matter profiles for several objects in which the intracluster medium is likely to be in hydrostatic…
Exotic sources detected in the 1 Ms Chandra Deep Field North Survey
D. M. Alexander, F. E. Bauer, W. N. Brandt +4
We provide constraints on optically faint (I>=24) X-ray sources, z>6 AGN, Very Red Objects (VROs; I-K>=4), and optically faint radio sources using the 1 Ms Chandra Deep Field North…