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Core Mass Estimates in Strong Lensing Galaxy Clusters Using a Single-halo Lens Model
Gonzalez, J. D. Remolina1; Sharon, K.1; Li, N.2,3; Mahler, G.1,4,5; Bleem, L. E.6,7; Gladders, M.7,8; Niemiec, A.1,4,5
2021-04-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume910Issue:2Pages:11
AbstractThe core mass of galaxy clusters is an important probe of structure formation. Here we evaluate the use of a single-halo model (SHM) as an efficient method to estimate the strong lensing cluster core mass, testing it with ray-traced images from the Outer Rim simulation. Unlike detailed lens models, the SHM represents the cluster mass distribution with a single halo and can be automatically generated from the measured lensing constraints. We find that the projected core mass estimated with this method, M-SHM, has a scatter of 8.52% and a bias of 0.90% compared to the "true" mass within the same aperture. Our analysis shows no systematic correlation between the scatter or bias and the lens-source system properties. The bias and scatter can be reduced to 3.26% and 0.34%, respectively, by excluding models that fail a visual inspection test. We find that the SHM success depends on the lensing geometry, with single giant arc configurations accounting for most of the failed cases due to their limiting constraining power. When excluding such cases, we measure a scatter and bias of 3.88% and 0.84%, respectively. Finally, we find that when the source redshift is unknown, the model-predicted redshifts are overestimated, and the M-SHM is underestimated by a few percent, highlighting the importance of securing spectroscopic redshifts of background sources. Our analysis provides a quantitative characterization of M-SHM, enabling its efficient use as a tool to estimate the strong lensing cluster core masses in the large samples, expected from current and future surveys.
KeywordGalaxy clusters Strong gravitational lensing
Funding OrganizationNational Science Foundation Graduate Research Fellowship Program ; National Science Foundation Graduate Research Fellowship Program ; UChicago Argonne LLC ; UChicago Argonne LLC ; U.S. Department of Energy Office of Science Laboratory ; U.S. Department of Energy Office of Science Laboratory ; DOE Office of Science ; DOE Office of Science ; National Science Foundation Graduate Research Fellowship Program ; National Science Foundation Graduate Research Fellowship Program ; UChicago Argonne LLC ; UChicago Argonne LLC ; U.S. Department of Energy Office of Science Laboratory ; U.S. Department of Energy Office of Science Laboratory ; DOE Office of Science ; DOE Office of Science ; National Science Foundation Graduate Research Fellowship Program ; National Science Foundation Graduate Research Fellowship Program ; UChicago Argonne LLC ; UChicago Argonne LLC ; U.S. Department of Energy Office of Science Laboratory ; U.S. Department of Energy Office of Science Laboratory ; DOE Office of Science ; DOE Office of Science ; National Science Foundation Graduate Research Fellowship Program ; National Science Foundation Graduate Research Fellowship Program ; UChicago Argonne LLC ; UChicago Argonne LLC ; U.S. Department of Energy Office of Science Laboratory ; U.S. Department of Energy Office of Science Laboratory ; DOE Office of Science ; DOE Office of Science
DOI10.3847/1538-4357/abe62a
Language英语
Funding ProjectNational Science Foundation Graduate Research Fellowship Program[DGE 1256260] ; UChicago Argonne LLC ; U.S. Department of Energy Office of Science Laboratory[DE-AC02-06CH11357] ; DOE Office of Science[DE-AC02-06CH11357]
Funding OrganizationNational Science Foundation Graduate Research Fellowship Program ; National Science Foundation Graduate Research Fellowship Program ; UChicago Argonne LLC ; UChicago Argonne LLC ; U.S. Department of Energy Office of Science Laboratory ; U.S. Department of Energy Office of Science Laboratory ; DOE Office of Science ; DOE Office of Science ; National Science Foundation Graduate Research Fellowship Program ; National Science Foundation Graduate Research Fellowship Program ; UChicago Argonne LLC ; UChicago Argonne LLC ; U.S. Department of Energy Office of Science Laboratory ; U.S. Department of Energy Office of Science Laboratory ; DOE Office of Science ; DOE Office of Science ; National Science Foundation Graduate Research Fellowship Program ; National Science Foundation Graduate Research Fellowship Program ; UChicago Argonne LLC ; UChicago Argonne LLC ; U.S. Department of Energy Office of Science Laboratory ; U.S. Department of Energy Office of Science Laboratory ; DOE Office of Science ; DOE Office of Science ; National Science Foundation Graduate Research Fellowship Program ; National Science Foundation Graduate Research Fellowship Program ; UChicago Argonne LLC ; UChicago Argonne LLC ; U.S. Department of Energy Office of Science Laboratory ; U.S. Department of Energy Office of Science Laboratory ; DOE Office of Science ; DOE Office of Science
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000637358100001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/78572
Collection中国科学院国家天文台
Corresponding AuthorGonzalez, J. D. Remolina
Affiliation1.Univ Michigan, Dept Astron, 1085 South Univ Ave, Ann Arbor, MI 48109 USA
2.Chinese Acad Sci, Key Lab Space Astron & Technol, Natl Astron Observ, A20 Datun Rd, Beijing 100012, Peoples R China
3.Univ Nottingham, Sch Phys & Astron, Univ Pk, Nottingham NG7 2RD, England
4.Univ Durham, Dept Phys, Ctr Extragalact Astron, Durham DH1 3LE, England
5.Univ Durham, Inst Computat Cosmol, South Rd, Durham DH1 3LE, England
6.Argonne Natl Lab, High Energy Phys Div, Argonne, IL 60439 USA
7.Univ Chicago, Kavli Inst Cosmol Phys, 5640 South Ellis Ave, Chicago, IL 60637 USA
8.Univ Chicago, Dept Astron & Astrophys, 5640 South Ellis Ave, Chicago, IL 60637 USA
Recommended Citation
GB/T 7714
Gonzalez, J. D. Remolina,Sharon, K.,Li, N.,et al. Core Mass Estimates in Strong Lensing Galaxy Clusters Using a Single-halo Lens Model[J]. ASTROPHYSICAL JOURNAL,2021,910(2):11.
APA Gonzalez, J. D. Remolina.,Sharon, K..,Li, N..,Mahler, G..,Bleem, L. E..,...&Niemiec, A..(2021).Core Mass Estimates in Strong Lensing Galaxy Clusters Using a Single-halo Lens Model.ASTROPHYSICAL JOURNAL,910(2),11.
MLA Gonzalez, J. D. Remolina,et al."Core Mass Estimates in Strong Lensing Galaxy Clusters Using a Single-halo Lens Model".ASTROPHYSICAL JOURNAL 910.2(2021):11.
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