TY - JOUR
T1 - The 2-degree Field Lensing Survey: design and clustering measurements
AU - Blake, Chris
AU - Amon, Alexandra
AU - Childress, Michael
AU - Erben, Thomas
AU - Glazebrook, Karl
AU - Harnois-Deraps, Joachim
AU - Heymans, Catherine
AU - Hildebrandt, Hendrik
AU - Hinton, Samuel R.
AU - Janssens, Steven
AU - Joudaki, Shahab
AU - Klaes, Dominik
AU - Kuijken, Konrad
AU - Lidman, Chris
AU - Marin, Felipe A.
AU - Parkinson, David
AU - Poole, Gregory B.
AU - Wolf, Christian
PY - 2016/11/1
Y1 - 2016/11/1
N2 - We present the 2-degree Field Lensing Survey (2dFLenS), a new galaxy
redshift survey performed at the Anglo-Australian Telescope. 2dFLenS is
the first wide-area spectroscopic survey specifically targeting the area
mapped by deep-imaging gravitational lensing fields, in this case the
Kilo-Degree Survey. 2dFLenS obtained 70 079 redshifts in the range z
<0.9 over an area of 731 deg2, and is designed to extend
the data sets available for testing gravitational physics and promote
the development of relevant algorithms for joint imaging and
spectroscopic analysis. The redshift sample consists first of 40 531
Luminous Red Galaxies (LRGs), which enable analyses of galaxy-galaxy
lensing, redshift-space distortion, and the overlapping source redshift
distribution by cross-correlation. An additional 28 269 redshifts form a
magnitude-limited (r <19.5) nearly complete subsample, allowing
direct source classification and photometric-redshift calibration. In
this paper, we describe the motivation, target selection, spectroscopic
observations, and clustering analysis of 2dFLenS. We use power spectrum
multipole measurements to fit the redshift-space distortion parameter of
the LRG sample in two redshift ranges 0.15 <z <0.43 and 0.43
<z <0.7 as β = 0.49 ± 0.15 and β = 0.26
± 0.09, respectively. These values are consistent with those
obtained from LRGs in the Baryon Oscillation Spectroscopic Survey.
2dFLenS data products will be released via our website
http://2dflens.swin.edu.au.
AB - We present the 2-degree Field Lensing Survey (2dFLenS), a new galaxy
redshift survey performed at the Anglo-Australian Telescope. 2dFLenS is
the first wide-area spectroscopic survey specifically targeting the area
mapped by deep-imaging gravitational lensing fields, in this case the
Kilo-Degree Survey. 2dFLenS obtained 70 079 redshifts in the range z
<0.9 over an area of 731 deg2, and is designed to extend
the data sets available for testing gravitational physics and promote
the development of relevant algorithms for joint imaging and
spectroscopic analysis. The redshift sample consists first of 40 531
Luminous Red Galaxies (LRGs), which enable analyses of galaxy-galaxy
lensing, redshift-space distortion, and the overlapping source redshift
distribution by cross-correlation. An additional 28 269 redshifts form a
magnitude-limited (r <19.5) nearly complete subsample, allowing
direct source classification and photometric-redshift calibration. In
this paper, we describe the motivation, target selection, spectroscopic
observations, and clustering analysis of 2dFLenS. We use power spectrum
multipole measurements to fit the redshift-space distortion parameter of
the LRG sample in two redshift ranges 0.15 <z <0.43 and 0.43
<z <0.7 as β = 0.49 ± 0.15 and β = 0.26
± 0.09, respectively. These values are consistent with those
obtained from LRGs in the Baryon Oscillation Spectroscopic Survey.
2dFLenS data products will be released via our website
http://2dflens.swin.edu.au.
KW - surveys
KW - cosmology: observations
KW - large-scale structure of Universe
U2 - 10.1093/mnras/stw1990
DO - 10.1093/mnras/stw1990
M3 - Article
SN - 0035-8711
VL - 462
SP - 4240
EP - 4265
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 4
ER -