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Related papers: QSO clustering and the AAT 2dF redshift survey

200 papers

Since the late 1970's, redshift surveys have been vital for progress in understanding large-scale structure in the Universe. The original CfA redshift survey collected spectra of 20-30 galaxies per clear night on a 1.5 meter telescope; over…

Astrophysics · Physics 2009-11-06 Marc Davis , Jeffrey Newman

We measure the two-point clustering of spectroscopically confirmed quasars from the final sample of the Baryon Oscillation Spectroscopic Survey (BOSS) on comoving scales of 4 < s < 22 Mpc/h. The sample covers 6950 deg^2 (~ 19 (Gpc/h)^3)…

Galaxy clusters at high redshift present a superb opportunity to study galaxy evolution, with large galaxy samples at fixed distances. Several lines of evidence point towards large formation redshifts and passive evolution for cluster…

Astrophysics · Physics 2009-03-02 S. C. Chapman , P. McCarthy , S. E. Persson

The clustering properties of objects in 3 different radio surveys (NVSS, FIRST and BOOTES-WSRT) and 2 near-infrared surveys (the ``Daddi field'' and the FIRES survey) are investigated and compared with studies of various samples of…

Astrophysics · Physics 2009-11-10 Huub Rottgering , Emanuele Daddi , Roderik Overzier , Richard Wilman

We present an analysis of galaxy and QSO absorption line pairs toward 24 QSOs at redshifts between z~0.2 and 1 in an effort to establish the relationship between galaxies and absorption lines in physical proximity to QSOs. We demonstrate…

Astrophysics · Physics 2009-11-06 Sebastian M. Pascarelle , Kenneth M. Lanzetta , Hsiao-Wen Chen , John K. Webb

We present results of an investigation of clustering evolution of field galaxies between a redshift of z\~1 and the present epoch. The current analysis relies on a sample of ~14000 galaxies in two fields of the COMBO-17 survey. The redshift…

Astrophysics · Physics 2009-11-07 S. Phleps , K. Meisenheimer

Understanding the clustering of galaxies has long been a goal of modern observational cosmology. Utilizing our photometric redshift technique a volume limited sample containing more than 2 million galaxies is constructed from the SDSS…

Observed high-redshift QSOs, at z~6, may reside in massive dark matter (DM) halos of more than 10^{12} Msun and are thus expected to be surrounded by overdense regions. In a series of 10 constrained simulations, we have tested the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Emilio Romano-Diaz , Isaac Shlosman , Michele Trenti , Yehuda Hoffman

We describe the aims, strategy and status of the AAO 2dF QSO redshift survey. This goal of the survey is to obtain redshifts for 30000 QSOs in a homogeneous magnitude limited (B<21) survey. The survey began in early 1997 and should be…

Astrophysics · Physics 2007-05-23 Boyle , R. J. Smith , T. Shanks , S. M. Croom , L. Miller

We have analyzed the clustering of C IV absorption line systems in an extensive new catalog of heavy element QSO absorbers. The catalog permits exploration of clustering over a large range in both scale (from about 1 to over 300 Mpc) and…

Astrophysics · Physics 2009-05-29 Jean M. Quashnock , Daniel E. Vanden Berk , Donald G. York

We present a catalogue comprising over 10000 QSOs covering an effective area of 289.6 sq. degrees, based on spectroscopic observations with the 2-degree Field instrument at the Anglo-Australian Telescope. This catalogue forms the first…

Astrophysics · Physics 2009-11-06 S. M. Croom , R. J. Smith , B. J. Boyle , T. Shanks , N. S. Loaring , L. Miller , I. J. Lewis

We report the possible discovery of multiple gravitationally-lensed images of QSOs with angular separations on arcminute scales. The QSOs were selected from the completed 2dF QSO survey as having redshifts and optical colours which are…

Astrophysics · Physics 2011-03-10 L. Miller , A. M. Lopes , R. J. Smith , S. M. Croom , B. J. Boyle , T. Shanks , P. Outram

In this thesis, I present an investigation into the environments of quasars with respect to galaxy clusters, and environment evolution with redshift and luminosity. The orientation of the quasar with respect to the major axis of the closest…

Cosmology and Nongalactic Astrophysics · Physics 2012-01-30 Kathryn A. Harris

This paper presents the evolution of the clustering of the main population of galaxies from z=2.1 to z=0.2, from the first epoch VIMOS VLT Deep Survey (VVDS), a magnitude limited sample with 17.5<=I_{AB}<=24. We have computed the…

The VIMOS-VLT Deep Survey (VVDS) currently offers a unique combination of depth, angular size and number of measured galaxies among surveys of the distant Universe: ~ 11,000 spectra over 0.5 deg2 to I_{AB}=24 (VVDS-Deep), 35,000 spectra…

We present the angular correlation function measured from photometric samples comprising 1,562,800 luminous red galaxies (LRGs). Three LRG samples were extracted from the Sloan Digital Sky Survey (SDSS) imaging data, based on colour-cut…

Cosmology and Nongalactic Astrophysics · Physics 2011-10-03 U. Sawangwit , T. Shanks , F. B. Abdalla , R. D. Cannon , S. M. Croom , A. C. Edge , Nicholas P. Ross , D. A. Wake

We measure the spatial clustering of galaxies as a function of their morphological type at z~0.8, for the first time in a deep redshift survey with full morphological information. This is obtained by combining high-resolution HST imaging…

We investigate the evolution of galaxy clustering for galaxies in the redshift range 2.0<$z$<5.0 using the VIMOS Ultra Deep Survey (VUDS). We present the projected (real-space) two-point correlation function $w_p(r_p)$ measured by using…