Mass and magnification maps for the Hubble Space Telescope Frontier Fields clusters: implications for high-redshift studies

被引:186
作者
Richard, Johan [1 ]
Jauzac, Mathilde [2 ,3 ]
Limousin, Marceau [4 ]
Jullo, Eric [4 ]
Clement, Benjamin [5 ]
Ebeling, Harald [6 ]
Kneib, Jean-Paul [7 ]
Atek, Hakim [7 ]
Natarajan, Priya [8 ]
Egami, Eiichi [5 ]
Livermore, Rachael [9 ]
Bower, Richard [3 ]
机构
[1] Univ Lyon 1, Observ Lyon, CRAL, F-69561 St Genis Laval, France
[2] Univ KwaZulu Natal, Sch Math Sci, Astrophys & Cosmol Res Unit, ZA-4041 Durban, South Africa
[3] Univ Durham, Inst Computat Cosmol, Durham DH1 3LE, England
[4] Univ Aix Marseille, CNRS, Lab Astrophys Marseille, F-13388 Marseille 13, France
[5] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA
[6] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
[7] Ecole Polytech Fed Lausanne, Observ Sauverny, Astrophys Lab, CH-1290 Versoix, Switzerland
[8] Yale Univ, Dept Astron, New Haven, CT 06511 USA
[9] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA
基金
美国国家科学基金会; 英国科学技术设施理事会;
关键词
galaxies clusters: individual: Abell 370; galaxies clusters: individual: A1063S; galaxies clusters: individual: Abell 2744; galaxies clusters: individual: MACS J0416.1-2403; galaxies clusters: individual: MACS J0717.5+3745; galaxies clusters: individual: MACS J1149.5+2223; STRONG-LENSING ANALYSIS; LUMINOUS GALAXY CLUSTERS; STAR-FORMING GALAXIES; MULTIPLE-IMAGES; LENSED GALAXIES; COMPLETE SAMPLE; FAINT GALAXIES; GIANT ARC; MACS; CLASH;
D O I
10.1093/mnras/stu1395
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Extending over three Hubble Space Telescope (HST) cycles, the Hubble Frontier Fields (HFF) initiative constitutes the largest commitment ever of HST time to the exploration of the distant Universe via gravitational lensing by massive galaxy clusters. Here, we present models of the mass distribution in the six HFF cluster lenses, derived from a joint strong-and weak-lensing analysis anchored by a total of 88 multiple-image systems identified in existing HST data. The resulting maps of the projected mass distribution and of the gravitational magnification effectively calibrate the HFF clusters as gravitational telescopes. Allowing the computation of search areas in the source plane, these maps are provided to the community to facilitate the exploitation of forthcoming HFF data for quantitative studies of the gravitationally lensed population of background galaxies. Our models of the gravitational magnification afforded by the HFF clusters allow us to quantify the lensing-induced boost in sensitivity over blank-field observations and predict that galaxies at z > 10 and as faint as m(AB) = 32 will be detectable, up to 2 mag fainter than the limit of the Hubble Ultra Deep Field.
引用
收藏
页码:268 / 289
页数:22
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