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A Catalog of Broad Absorption Line Quasars in Sloan Digital Sky Survey Data Release 5
Robert R. Gibson, Linhua Jiang, W. N. Brandt +9
We present a catalog of 5039 broad absorption line (BAL) quasars (QSOs) in the Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5) QSO catalog that have absorption troughs coverin…
Evidence for a parsec scale X-ray jet from the accreting neutron star Circinus X-1
S. Heinz, N. S. Schulz, W. N. Brandt +1
We analyzed the zero-order image of a 50 ks Chandra gratings observation of Circinus X-1, taken in 2005 during the source's low-flux state. Circinus X-1 is an accreting neutron sta…
The Sloan Digital Sky Survey Quasar Catalog IV. Fifth Data Release
Donald P. Schneider, Patrick B. Hall, Gordon T. Richards +41
We present the fourth edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The catalog contains 77,429 objects; this is an increase of over 30,000 entries since the previ…
Probing the Evolution of IR Properties of z~6 Quasars: Spitzer Observations
Linhua Jiang, Xiaohui Fan, Dean C. Hines +14
We present Spitzer observations of thirteen z~6 quasars using the Infrared Array Camera (IRAC) and Multiband Imaging Photometer for Spitzer (MIPS). All the quasars except SDSS J000…
The Hard X-ray Spectral Slope as an Accretion-Rate Indicator in Radio-Quiet Active Galactic Nuclei
Ohad Shemmer, W. N. Brandt, Hagai Netzer +2
We present new XMM-Newton observations of two luminous and high accretion-rate radio-quiet active galactic nuclei (AGNs) at z~2. Together with archival X-ray and rest-frame optical…
X-ray Insights Into Interpreting CIV Blueshifts and Optical/UV Continua
S. C. Gallagher, G. T. Richards, P. B. Hall +3
We present 0.5-8.0 keV Chandra observations of six bright quasars that represent extrema in quasar emission-line properties -- three quasars each with small and large blueshifts of…