195 citations · 695 across the 14 of their papers we have counts for
6 papers · 2 filters
A Gravitationally Lensed Quasar with Quadruple Images Separated by 14.62 Arcseconds
N. Inada, M. Oguri, B. Pindor +29
Gravitational lensing is a powerful tool for the study of the distribution of dark matter in the Universe. The cold-dark-matter model of the formation of large-scale structures pre…
Imaging and spectroscopy of galaxies associated with two z~0.7 damped Lyman-alpha absorption systems
Mark Lacy, Robert H. Becker, Lisa J. Storrie-Lombardi +4
We have identified galaxies near two quasars which are at the redshift of damped Lyman-alpha (DLA) systems in the UV spectra of the quasars. Both galaxies are actively forming star…
SDSS J0903+5028: A New Gravitational Lens
David E. Johnston, Gordon T. Richards, Joshua A. Frieman +22
We report the discovery of a new gravitationally lensed quasar from the Sloan Digital Sky Survey, SDSS J090334.92+502819.2. This object was targeted for SDSS spectroscopy as a Lumi…
An I-Band-Selected Sample of Radio-Emitting Quasars: Evidence for a Large Population of Red Quasars
Richard L. White, David J. Helfand, Robert H. Becker +4
We present a new sample of 35 quasars selected from the FIRST radio survey and the Deeprange I-band survey (Postman et al. 1998, 2002). A comparison with the FIRST Bright Quasar su…
Uncovering High-z Clusters Using Wide-Angle Tailed Radio Sources
E. L. Blanton, M. D. Gregg, D. J. Helfand +2
The morphologies of wide-angle tailed (WAT) radio sources (edge-darkened, C-shaped, FR I radio sources) are the result of confinement and distortion of the radio lobes by the dense…
A Survey of z>5.7 Quasars in the Sloan Digital Sky Survey II: Discovery of Three Additional Quasars at z>6
Xiaohui Fan, Michael A. Strauss, Donald P. Schneider +14
We present the discovery of three new quasars at z>6 in 1300 deg^2 of SDSS imaging data, J114816.64+525150.3 (z=6.43), J104845.05+463718.3 (z=6.23) and J163033.90+401209.6 (z=6.05)…