CARS: the CFHTLS-Archive-Research Survey; I. Five-band multi-colour data from 37 sq. deg. CFHTLS-Wide observations

Abstract

We present the CFHTLS-Archive-Research Survey (CARS). It is a virtual multi-colour survey based on public archive images from the CFHT-Legacy-Survey. Our main scientific interests in CARS are optical searches for galaxy clusters from low to high redshift and their subsequent study with photometric and weak-gravitational lensing techniques. As a first step of the project we present multi-colour catalogues from 37 sq. degrees of the CFHTLS-Wide component. Our aims are to create astrometrically and photometrically well calibrated co-added images. Second goal are five-band (u*, g', r', i', z') multi-band catalogues with an emphasis on reliable estimates for object colours. These are subsequently used for photometric redshift estimates. The article explains in detail data processing, multi-colour catalogue creation and photometric redshift estimation. Furthermore we apply a novel technique, based on studies of the angular galaxy cross-correlation function, to quantify the reliability of photo-z's. The accuracy of our high-confidence photo-z sample (10-15 galaxies per sq. arcmin) is estimated to ${\sigma }_{{\Delta }_z/(1+z)}\approx 0.04-0.05$ up to i'<24 with typically only 1-3% outliers. Interested users can obtain access to our data by request to the authors.

31 pages, 18 figures, 6 tables; accepted for publication by A&A main journal

References in corpus (12)

• The All-wavelength Extended Groth Strip International Survey (AEGIS) Data Sets
• The Zurich Extragalactic Bayesian Redshift Analyzer (ZEBRA) and its first application: COSMOS
• MegaPipe: the MegaCam image stacking pipeline at the Canadian Astronomical Data Centre
• The Vimos VLT Deep Survey: Global properties of 20000 galaxies in the I_AB<=22.5 WIDE survey
• Precision photometric redshift calibration for galaxy-galaxy weak lensing
• Cosmological Constraints from the Red-Sequence Cluster Survey
• GaBoDS: The Garching-Bonn Deep Survey -- IX. A sample of 158 shear-selected mass concentration candidates
• Using Galaxy Two-point Correlation Functions to Determine the Redshift Distributions of Galaxies Binned by Photometric Redshift
• A blind test of photometric redshifts on ground-based data
• GaBoDS: The Garching-Bonn Deep Survey -- I. Anatomy of galaxy clusters in the background of NGC 300
• BLOX: The Bonn Lensing, Optical, and X-ray selected galaxy clusters -- I. Cluster catalog construction
• Redshift and Shear Calibration: Impact on Cosmic Shear Studies and Survey Design

Cited by in corpus (42)

• 3D-HST WFC3-selected Photometric Catalogs in the Five CANDELS/3D-HST Fields: Photometry, Photometric Redshifts and Stellar Masses
• PRIMUS: Constraints on Star Formation Quenching and Galaxy Merging, and the Evolution of the Stellar Mass Function From z=0-1
• The FourStar Galaxy Evolution Survey (ZFOURGE): ultraviolet to far-infrared catalogs, medium-bandwidth photometric redshifts with improved accuracy, stellar masses, and confirmation of quiescent galaxies to z~3.5
• Lensing is Low: Cosmology, Galaxy Formation, or New Physics?
• Reionization Era Bright Emission Line Survey: Selection and Characterization of Luminous Interstellar Medium Reservoirs in the z>6.5 Universe
• KiDS-450: The tomographic weak lensing power spectrum and constraints on cosmological parameters
• Photometric Redshift with Bayesian Priors on Physical Properties of Galaxies
• Normal, Dust-Obscured Galaxies in the Epoch of Reionization
• KiDS-450: Cosmological Constraints from Weak Lensing Peak Statistics-I: Inference from Analytical Prediction of High Signal-to-Noise Ratio Convergence Peaks
• Galaxy environment in the 3D-HST fields. Witnessing the onset of satellite quenching at z ~ 1-2
• The 2-degree Field Lensing Survey: design and clustering measurements
• No overdensity of Lyman Alpha Emitting Galaxies around a quasar at z~5.7
• Significant Dust-Obscured Star Formation in Luminous Lyman-break Galaxies at $z$$\sim$$7$$-$$8$
• Evidence for the inside-out growth of the stellar mass distribution in galaxy clusters since z~1
• Photometric redshifts: estimating their contamination and distribution using clustering information
• 2dFLenS and KiDS: Determining source redshift distributions with cross-correlations
• HST imaging of the brightest z~8-9 galaxies from UltraVISTA: the extreme bright end of the UV luminosity function
• A skewer survey of the Galactic halo from deep CFHT and INT images
• One Plane for All: Massive Star-Forming and Quiescent Galaxies Lie on the Same Mass Fundamental Plane at z~0 and z~0.7
• The Impact of Strong Gravitational Lensing on Observed Lyman-Break Galaxy Numbers at 4<z<8 in the GOODS and the XDF Blank Fields
• CFHTLenS: A Weak Lensing Shear Analysis of the 3D-Matched-Filter Galaxy Clusters
• Mass, Light and Colour of the Cosmic Web in the Supercluster SCL2243-0935 (z=0.447)
• The Next Generation Virgo Cluster Survey. XV. The photometric redshift estimation for background sources
• CODEX Weak Lensing: Concentration of Galaxy Clusters at z ~ 0.5
• A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE).X. Formation of a red ultra-diffuse galaxy and an almost dark galaxy during a ram-pressure stripping event
• Galaxy clusters and groups in the ALHAMBRA Survey
• The PAU Survey: Measurement of Narrow-band galaxy properties with Approximate Bayesian Computation
• 3D-HST Emission Line Galaxies at z ~ 2: Discrepancies in the Optical/UV Star Formation Rates
• J0454-0309: Evidence for a strong lensing fossil group falling into a poor galaxy cluster
• Using angular two-point correlations to self-calibrate the photometric redshift distributions of DECaLS DR9
• Weak lensing magnification of SpARCS galaxy clusters
• CODEX Weak Lensing Mass Catalogue and implications on the mass-richness relation
• The bright end of the galaxy luminosity function at $z\simeq 7$ from the VISTA VIDEO survey
• Galaxy clusters in the SDSS Stripe 82 based on galaxy photometric redshifts
• SEEDisCS I. Molecular gas in galaxy clusters and their large scale structure: the case of CL1411.1$-$1148 at $z\sim 0.5$
• Tightening weak lensing constraints on the ellipticity of galaxy-scale dark matter haloes
• Avoiding the Geometric Boundary Effect in Shear Measurement
• Optimizing Redshift Distribution Inference through Joint Self-Calibration and Clustering-Redshift Synergy
• ALMA measures molecular gas reservoirs comparable to field galaxies in a low-mass galaxy cluster at z=1.3
• Chasing the peak: optimal statistics for weak shear analyses
• Lensing Without Borders. I. A Blind Comparison of the Amplitude of Galaxy-Galaxy Lensing Between Independent Imaging Surveys
• AMICO galaxy clusters in KiDS-DR3: the impact of estimator statistics on the luminosity-mass scaling relation