RCSLenS: The Red Cluster Sequence Lensing Survey

被引:73
|
作者
Hildebrandt, H. [1 ]
Choi, A. [2 ]
Heymans, C. [2 ]
Blake, C. [3 ]
Erben, T. [1 ]
Miller, L. [4 ]
Nakajima, R. [1 ]
van Waerbeke, L. [5 ]
Viola, M. [6 ]
Buddendiek, A. [1 ]
Harnois-Deraps, J. [2 ,5 ]
Hojjati, A. [5 ]
Joachimi, B. [7 ]
Joudaki, S. [3 ]
Kitching, T. D. [8 ]
Wolf, C. [9 ]
Gwyn, S. [10 ]
Johnson, N. [11 ]
Kuijken, K. [6 ]
Sheikhbahaee, Z. [1 ]
Tudorica, A. [1 ]
Yee, H. K. C. [12 ]
机构
[1] Argelander Inst Astron, Hugel 71, D-53121 Bonn, Germany
[2] Univ Edinburgh, Inst Astron, Scottish Univ Phys Alliance, Royal Observ, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland
[3] Swinburne Univ Technol, Ctr Astrophys & Supercomp, POB 218, Hawthorn, Vic 3122, Australia
[4] Univ Oxford, Dept Phys, Keble Rd, Oxford OX1 3RH, England
[5] Univ British Columbia, Dept Phys & Astron, 6224 Agr Rd, Vancouver, BC V6T 1Z1, Canada
[6] Leiden Univ, Leiden Observ, Niels Bohrweg 2, NL-2333 CA Leiden, Netherlands
[7] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England
[8] Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England
[9] Australian Natl Univ, Res Sch Astron & Astrophys, Canberra, ACT 2611, Australia
[10] NRC Herzberg Astron & Astrophys, 5071 West Snanich Rd, Victoria, BC V9E 2E7, Canada
[11] Univ Edinburgh, EPCC, Kings Bldg, Edinburgh EH9 3JZ, Midlothian, Scotland
[12] Univ Toronto, Dept Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada
基金
澳大利亚研究理事会; 欧洲研究理事会; 加拿大创新基金会; 加拿大自然科学与工程研究理事会;
关键词
gravitational lensing: weak; surveys; galaxies: photometry; cosmology: observations; FRANCE-HAWAII-TELESCOPE; GALAXY SHAPE MEASUREMENT; DIGITAL SKY SURVEY; PHOTOMETRIC REDSHIFTS; CATALOG CONSTRUCTION; COVARIANCE MATRICES; SURVEY DESIGN; DATA RELEASE; IMAGING DATA; DARK-MATTER;
D O I
10.1093/mnras/stw2013
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present the Red Cluster Sequence Lensing Survey (RCSLenS), an application of the methods developed for the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS) to the similar to 785 deg(2), multi-band imaging data of the Red-sequence Cluster Survey 2. This project represents the largest public, sub-arcsecond seeing, multi-band survey to date that is suited for weak gravitational lensing measurements. With a careful assessment of systematic errors in shape measurements and photometric redshifts, we extend the use of this data set to allow cross-correlation analyses between weak lensing observables and other data sets. We describe the imaging data, the data reduction, masking, multi-colour photometry, photometric redshifts, shape measurements, tests for systematic errors, and a blinding scheme to allow for more objective measurements. In total, we analyse 761 pointings with r-band coverage, which constitutes our lensing sample. Residual large-scale B-mode systematics prevent the use of this shear catalogue for cosmic shear science. The effective number density of lensing sources over an unmasked area of 571.7 deg(2) and down to a magnitude limit of r similar to 24.5 is 8.1 galaxies per arcmin(2) (weighted: 5.5 arcmin(-2)) distributed over 14 patches on the sky. Photometric redshifts based on four-band griz data are available for 513 pointings covering an unmasked area of 383.5 deg(2). We present weak lensing mass reconstructions of some example clusters as well as the full survey representing the largest areas that have been mapped in this way. All our data products are publicly available through Canadian Astronomy Data Centre at http://www.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/en/community/rcslens/query.html in a format very similar to the CFHTLenS data release.
引用
收藏
页码:635 / 654
页数:20
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