activity
19982002
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13 papers · 1 filter

astro-ph2008

Broad-line region size and black hole mass in high-z AGN

Ismael Botti, Paulina Lira, Hagai Netzer +3

In this contribution we briefly review the reverberation mapping technique and its results for low and intermidiate luminosity AGNs. Then we present a monitoring campaign of high-l…

astro-ph2007

Advances in Reverberation Mapping

Shai Kaspi

This contribution briefly reviews the reverberation mapping technique which leads to determination of black hole masses. I focus on the emerging relation between the broad-line reg…

astro-ph2002

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…

astro-ph2002

Reverberation Mapping of High-Redshift, High-Luminosity Quasars

Shai Kaspi, Hagai Netzer, Dan Maoz +3

We present preliminary results from a reverberation mapping program to measure the Broad Line Region size in high-redshift, high-luminosity quasars. The observations are carried ou…

astro-ph2002

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…

astro-ph2002

Chandra and XMM-Newton Observations of the Highest Redshift Quasars: X-rays from the Dawn of the Modern Universe

W. N. Brandt, C. Vignali, X. Fan +2

We review X-ray studies of the highest redshift (z > 4) quasars, focusing on recent advances enabled largely by the capabilities of Chandra and XMM-Newton. Included are discussions…