The DES Science Verification weak lensing shear catalogues

The DES Science Verification weak lensing shear catalogues
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DOI：
10.1093/mnras/stw990
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发表时间：
2015-07
期刊：
Monthly Notices of the Royal Astronomical Society
影响因子：
4.8
通讯作者：
M. Jarvis;E. Sheldon;J. Zuntz;T. Kacprzak;S. Bridle;A. Amara;R. Armstrong;M. Becker;G. Bernstein;C. Bonnett;C. Chang;R. Das;J. Dietrich;A. Drlica-Wagner;T. Eifler;C. Gangkofner;D. Gruen;M. Hirsch;E. Huff;B. Jain;S. Kent;D. Kirk;N. MacCrann;Peter Melchior;A. Plazas;A. Réfrégier;B. Rowe;E. Rykoff;S. Samuroff;C. S'anchez;E. Suchyta;M. Troxel;V. Vikram;T. Abbott;F. Abdalla;S. Allam;J. Annis;A. Benoit-Lévy;E. Bertin;D. Brooks;E. Buckley-Geer;D. Burke;D. Capozzi;A. Rosell;M. Kind;J. Carretero;F. Castander;J. Clampitt;M. Crocce;C. Cunha;C. D'Andrea;L. Costa;D. Depoy;S. Desai;H. Diehl;P. Doel;A. F. Neto;B. Flaugher;P. Fosalba;J. Frieman;E. Gaztañaga;D. Gerdes;R. Gruendl;G. Gutiérrez;K. Honscheid;D. James;K. Kuehn;N. Kuropatkin;O. Lahav;T. Li;M. Lima;M. March;P. Martini;R. Miquel;J. Mohr;E. Neilsen;B. Nord;R. Ogando;K. Reil;A. Romer;A. Roodman;M. Sako;E. Sánchez;V. Scarpine;M. Schubnell;I. Sevilla-Noarbe;R. C. Smith;M. Soares-Santos;F. Sobreira;M. Swanson;G. Tarlé;J. Thaler;D. Thomas;A. Walker;R. Wechsler
M. Jarvis;E. Sheldon;J. Zuntz;T. Kacprzak;S. Bridle;A. Amara;R. Armstrong;M. Becker;G. Bernstein;C. Bonnett;C. Chang;R. Das;J. Dietrich;A. Drlica-Wagner;T. Eifler;C. Gangkofner;D. Gruen;M. Hirsch;E. Huff;B. Jain;S. Kent;D. Kirk;N. MacCrann;Peter Melchior;A. Plazas;A. Réfrégier;B. Rowe;E. Rykoff;S. Samuroff;C. S'anchez;E. Suchyta;M. Troxel;V. Vikram;T. Abbott;F. Abdalla;S. Allam;J. Annis;A. Benoit-Lévy;E. Bertin;D. Brooks;E. Buckley-Geer;D. Burke;D. Capozzi;A. Rosell;M. Kind;J. Carretero;F. Castander;J. Clampitt;M. Crocce;C. Cunha;C. D'Andrea;L. Costa;D. Depoy;S. Desai;H. Diehl;P. Doel;A. F. Neto;B. Flaugher;P. Fosalba;J. Frieman;E. Gaztañaga;D. Gerdes;R. Gruendl;G. Gutiérrez;K. Honscheid;D. James;K. Kuehn;N. Kuropatkin;O. Lahav;T. Li;M. Lima;M. March;P. Martini;R. Miquel;J. Mohr;E. Neilsen;B. Nord;R. Ogando;K. Reil;A. Romer;A. Roodman;M. Sako;E. Sánchez;V. Scarpine;M. Schubnell;I. Sevilla-Noarbe;R. C. Smith;M. Soares-Santos;F. Sobreira;M. Swanson;G. Tarlé;J. Thaler;D. Thomas;A. Walker;R. Wechsler
中科院分区：
物理与天体物理2区
文献类型：
--
作者：
M. Jarvis;E. Sheldon;J. Zuntz;T. Kacprzak;S. Bridle;A. Amara;R. Armstrong;M. Becker;G. Bernstein;C. Bonnett;C. Chang;R. Das;J. Dietrich;A. Drlica-Wagner;T. Eifler;C. Gangkofner;D. Gruen;M. Hirsch;E. Huff;B. Jain;S. Kent;D. Kirk;N. MacCrann;Peter Melchior;A. Plazas;A. Réfrégier;B. Rowe;E. Rykoff;S. Samuroff;C. S'anchez;E. Suchyta;M. Troxel;V. Vikram;T. Abbott;F. Abdalla;S. Allam;J. Annis;A. Benoit-Lévy;E. Bertin;D. Brooks;E. Buckley-Geer;D. Burke;D. Capozzi;A. Rosell;M. Kind;J. Carretero;F. Castander;J. Clampitt;M. Crocce;C. Cunha;C. D'Andrea;L. Costa;D. Depoy;S. Desai;H. Diehl;P. Doel;A. F. Neto;B. Flaugher;P. Fosalba;J. Frieman;E. Gaztañaga;D. Gerdes;R. Gruendl;G. Gutiérrez;K. Honscheid;D. James;K. Kuehn;N. Kuropatkin;O. Lahav;T. Li;M. Lima;M. March;P. Martini;R. Miquel;J. Mohr;E. Neilsen;B. Nord;R. Ogando;K. Reil;A. Romer;A. Roodman;M. Sako;E. Sánchez;V. Scarpine;M. Schubnell;I. Sevilla-Noarbe;R. C. Smith;M. Soares-Santos;F. Sobreira;M. Swanson;G. Tarlé;J. Thaler;D. Thomas;A. Walker;R. Wechsler

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我们提出了弱透镜剪切目录的139平方度的数据在科学验证（SV）的时间为新的暗能量相机（DECam）正在用于暗能量调查（DES）。我们描述了我们的对象选择，点扩散函数估计和剪切测量程序使用两个独立的剪切管道，IM3SHAPE和NGMIX，分别产生212万和344万个星系的目录。我们详细介绍了一组零测试的剪切测量，发现他们通过的系统误差的要求，在弱透镜科学应用所需的水平，使用SV数据。我们还讨论了一些计划中的算法改进，这将是必要的，以产生足够准确的剪切目录的完整的5年DES，预计将覆盖5000平方度。
We present weak lensing shear catalogues for 139 square degrees of data taken during the Science Verification (SV) time for the new Dark Energy Camera (DECam) being used for the Dark Energy Survey (DES). We describe our object selection, point spread function estimation and shear measurement procedures using two independent shear pipelines, IM3SHAPE and NGMIX, which produce catalogues of 2.12 million and 3.44 million galaxies respectively. We detail a set of null tests for the shear measurements and find that they pass the requirements for systematic errors at the level necessary for weak lensing science applications using the SV data. We also discuss some of the planned algorithmic improvements that will be necessary to produce sufficiently accurate shear catalogues for the full 5-year DES, which is expected to cover 5000 square degrees.