CFHTLenS: the Canada-France-Hawaii Telescope Lensing Survey - imaging data and catalogue products

被引：334

作者：

Erben, T. ^{[1
]}

Hildebrandt, H. ^{[1
,2
]}

Miller, L. ^{[3
]}

van Waerbeke, L. ^{[2
]}

Heymans, C. ^{[4
]}

Hoekstra, H. ^{[5
,6
]}

Kitching, T. D. ^{[4
]}

Mellier, Y. ^{[7
]}

Benjamin, J. ^{[2
]}

Blake, C. ^{[8
]}

Bonnett, C. ^{[9
]}

Cordes, O. ^{[1
]}

Coupon, J. ^{[10
]}

Fu, L. ^{[11
]}

Gavazzi, R. ^{[7
]}

Gillis, B. ^{[12
,13
]}

Grocutt, E. ^{[4
]}

Gwyn, S. D. J. ^{[14
]}

Holhjem, K. ^{[1
,15
]}

Hudson, M. J. ^{[12
,13
]}

Kilbinger, M. ^{[7
,14
,16
,17
,18
]}

Kuijken, K. ^{[5
]}

Milkeraitis, M. ^{[2
]}

Rowe, B. T. P. ^{[19
,20
]}

Schrabback, T. ^{[1
,5
,21
]}

Semboloni, E. ^{[5
]}

Simon, P. ^{[1
]}

Smit, M. ^{[5
]}

Toader, O. ^{[2
]}

Vafaei, S. ^{[2
]}

van Uitert, E. ^{[1
,5
]}

Velander, M. ^{[3
,5
]}

机构：

[1] Univ Bonn, Argelander Inst Astron, D-53121 Bonn, Germany

[2] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[3] Univ Oxford, Dept Phys, Oxford OX1 3RH, England

[4] Univ Edinburgh, Royal Observ, Inst Astron, Scottish Univ Phys Alliance, Edinburgh EH9 3HJ, Midlothian, Scotland

[5] Leiden Univ, Leiden Observ, NL-2333 CA Leiden, Netherlands

[6] Univ Victoria, Dept Phys & Astron, Victoria, BC V8P 5C2, Canada

[7] Univ Paris 06, Inst Astrophys Paris, F-75014 Paris, France

[8] Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia

[9] CSIC IEEC, Inst Ciencies Espai, E-08193 Barcelona, Spain

[10] Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan

[11] Shanghai Normal Univ, Key Lab Astrophys, Shanghai 200234, Peoples R China

[12] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada

[13] Perimeter Inst Theoret Phys, Waterloo, ON N2L 1Y5, Canada

[14] Herzberg Inst Astrophys, Canadian Astron Data Ctr, Victoria, BC V9E 2E7, Canada

[15] Southern Astrophys Res Telescope, La Serena, Chile

[16] CEA Saclay, SAp, F-91191 Gif Sur Yvette, France

[17] Excellence Cluster Universe, D-85748 Garching, Germany

[18] Univ Munich, Univ Sternwarte, D-81679 Munich, Germany

[19] UCL, Dept Phys & Astron, London WC1E 6BT, England

[20] CALTECH, Pasadena, CA 91125 USA

[21] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2013年 / 433卷 / 03期

基金：

欧洲研究理事会; 加拿大自然科学与工程研究理事会;

关键词：

methods: data analysis; cosmology: observations; DIGITAL SKY SURVEY; BONN DEEP SURVEY; COSMIC SHEAR; DATA RELEASE; WEAK; CONSTRAINTS; WIDE; SUPERNOVAE; COSMOLOGY; MEGACAM;

D O I：

10.1093/mnras/stt928

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present data products from the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS). CFHTLenS is based on the Wide component of the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS). It encompasses 154 deg(2) of deep, optical, high-quality, sub-arcsecond imaging data in the five optical filters u*g(')r(')i(')z('). The scientific aims of the CFHTLenS team are weak gravitational lensing studies supported by photometric redshift estimates for the galaxies. This paper presents our data processing of the complete CFHTLenS data set. We were able to obtain a data set with very good image quality and high-quality astrometric and photometric calibration. Our external astrometric accuracy is between 60 and 70 mas with respect to Sloan Digital Sky Survey (SDSS) data, and the internal alignment in all filters is around 30 mas. Our average photometric calibration shows a dispersion of the order of 0.01-0.03 mag for g(')r(')i(')z(') and about 0.04 mag for u* with respect to SDSS sources down to i(SDSS) < 21. We demonstrate in accompanying papers that our data meet necessary requirements to fully exploit the survey for weak gravitational lensing analyses in connection with photometric redshift studies. In the spirit of the CFHTLS, all our data products are released to the astronomical community via the Canadian Astronomy Data Centre at ext-link-type="uri" xlink:href="http://www.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/community/CFHTLens/query.html" xmlns:xlink="http://www.w3.org/1999/xlink">http://www.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/community/CFHTLens/query.html. We give a description and how-to manuals of the public products which include image pixel data, source catalogues with photometric redshift estimates and all relevant quantities to perform weak lensing studies.

引用

页码：2545 / 2563

页数：19

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