Dark energy survey operations: years 4 and 5
Dark energy survey operations: years 4 and 5
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DOI：
10.1117/12.2312113
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发表时间：
2018-07
期刊：
影响因子：
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通讯作者：
R. Gruendl;D. Tucker;S. Bocquet;A. Ferté;I. Friswell;Kate E. Furnell;G. Khullar;R. Kron;N. Kuropatkin;J. Lasker;M. Manera;M. March;M. Medford;F. Menanteau;Irshad Mohammed;Martin Monroy;Bruno Moraes;E. Morganson;J. Muir;Martin Murphy;B. Nord;Anthony Pace;A. Palmese;Youngsoo Park;F. Paz-Chinchón;M. E. Pereira;D. Petravick;A. Plazas;Jason Poh;T. Prochaska;M. Sako;M. Sauseda;D. Scolnic;L. Secco;I. Sevilla-Noarbe;N. Shipp;John A. Smith;B. Soergel;A. Stebbins;K. Story;K. Stringer;Ferderica Tarsitano;Benjamin Thomas;K. Vivas;Mei-yu Wang;C. Weaverdyck;N. Weaverdyck;William Wester;C. Wethers;Reece Wilkenson;Hao-Yi Wu;B. Yanny;A. Zenteno;Yuanyuan Zhang;H. Diehl;E. Neilsen;J. Marshall;D. Depoy;A. Romer;T. Abbott;M. Soares-Santos;S. Allam;A. Walker;S. Kent;K. Honscheid;A. Roodman;A. Lathrop;K. Reil;Ting S. Li;A. Elliott;O. Alvarez;J. Annis;E. Balbinot;S. Bhargava;K. Bechtol;G. Bernstein;R. Bhatawdekar;D. Brout;Raffaella Capasso;R. Cawthon;Chihway L. Chang;E. Cook;C. Conselice;Jamie Cruz;C. D'Andrea;L. D. da Costa;Rutuparna Das;A. Drlica-Wagner;S. Everett;J. Frieman;A. Fausti-Neto;Landon Gelman;D. Gerdes;M. Gill;Daniel A. Goldstein;D. Gruen;D. J. Gulledge;S. Hamilton;D. Hollowood;D. James;Michael D. Johnson;Margaret W. G. Johnson;R. Kessler;E. Kovacs;A. Kremin
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文献类型：
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作者：
R. Gruendl;D. Tucker;S. Bocquet;A. Ferté;I. Friswell;Kate E. Furnell;G. Khullar;R. Kron;N. Kuropatkin;J. Lasker;M. Manera;M. March;M. Medford;F. Menanteau;Irshad Mohammed;Martin Monroy;Bruno Moraes;E. Morganson;J. Muir;Martin Murphy;B. Nord;Anthony Pace;A. Palmese;Youngsoo Park;F. Paz-Chinchón;M. E. Pereira;D. Petravick;A. Plazas;Jason Poh;T. Prochaska;M. Sako;M. Sauseda;D. Scolnic;L. Secco;I. Sevilla-Noarbe;N. Shipp;John A. Smith;B. Soergel;A. Stebbins;K. Story;K. Stringer;Ferderica Tarsitano;Benjamin Thomas;K. Vivas;Mei-yu Wang;C. Weaverdyck;N. Weaverdyck;William Wester;C. Wethers;Reece Wilkenson;Hao-Yi Wu;B. Yanny;A. Zenteno;Yuanyuan Zhang;H. Diehl;E. Neilsen;J. Marshall;D. Depoy;A. Romer;T. Abbott;M. Soares-Santos;S. Allam;A. Walker;S. Kent;K. Honscheid;A. Roodman;A. Lathrop;K. Reil;Ting S. Li;A. Elliott;O. Alvarez;J. Annis;E. Balbinot;S. Bhargava;K. Bechtol;G. Bernstein;R. Bhatawdekar;D. Brout;Raffaella Capasso;R. Cawthon;Chihway L. Chang;E. Cook;C. Conselice;Jamie Cruz;C. D'Andrea;L. D. da Costa;Rutuparna Das;A. Drlica-Wagner;S. Everett;J. Frieman;A. Fausti-Neto;Landon Gelman;D. Gerdes;M. Gill;Daniel A. Goldstein;D. Gruen;D. J. Gulledge;S. Hamilton;D. Hollowood;D. James;Michael D. Johnson;Margaret W. G. Johnson;R. Kessler;E. Kovacs;A. Kremin
暗能量巡天（DES）是一个光学巡天，旨在使用四种互补的方法来理解宇宙的加速膨胀：弱引力透镜，星系团计数，重子声学振荡和Ia型超新星。为了进行5000平方度的宽视场和30平方度的超新星调查，DES合作建造了暗能量相机（DECam），这是一台3平方度，570万像素的CCD相机，安装在Cerro Tololo美洲天文台（CTIO）的布兰科4米望远镜的主焦点上。DES已经完成了它的第三个观测季节的名义五。本文介绍了DES“第四年”（Y4）和“第五年”（Y5）的调查策略，概述了调查作业程序，作业效率和损失观测时间的原因。它提供了有关这两个季节的数据质量的详细信息，总体状况的摘要，以及最后一个调查季节的计划。
The Dark Energy Survey (DES) is an operating optical survey aimed at understanding the accelerating expansion of the universe using four complementary methods: weak gravitational lensing, galaxy cluster counts, baryon acoustic oscillations, and Type Ia supernovae. To perform the 5000 sq-degree wide field and 30 sq-degree supernova surveys, the DES Collaboration built the Dark Energy Camera (DECam), a 3 square-degree, 570-Megapixel CCD camera that was installed at the prime focus of the Blanco 4-meter telescope at the Cerro Tololo Inter-American Observatory (CTIO). DES has completed its third observing season out of a nominal five. This paper describes DES “Year 4” (Y4) and “Year 5” (Y5), the survey strategy, an outline of the survey operations procedures, the efficiency of operations and the causes of lost observing time. It provides details about the quality of these two-season's data, a summary of the overall status, and plans for the final survey season.