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SDSS J1640+1932: a spectacular galaxy-quasar strong lens system
Wang, Lin1,2; Shu, Yiping2; Li, Ran1,2; Zheng, Zheng1; Wen, Zhonglue2; Liu, Guilin3
2017-07-01
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号468期号:3页码:3757-3763
摘要We present Canada-France-Hawaii Telescope (CFHT) MegaCam observations of a galaxy-quasar strong gravitational lens system, SDSS J1640+1932. This system, located at z = 0.195 (foreground elliptical galaxy) and z = 0.778 (background quasar), was first visually identified by us in the Sloan Digital Sky Survey data base. Our CFHT imaging with an angular resolution of 0.7 arcsec clearly resolves four lensed images and a nearly complete Einstein ring. Modelling the system with a singular isothermal ellipsoid total mass distribution, we find an Einstein radius of 2.49"(+0.063)(-0.049) enclosing an inferred mass of 7.25(-0.29)(+0.37) x 10(11) M-circle dot. The quasar and its host galaxy have been magnified by a factor of 23, and the time delay relative to the leading image is determined to be 23.4-25.2 d. These parameters vary minimally when our model is fitted to the g-, r- or i-band images.
文章类型Article
关键词Gravitational Lensing: Strong Galaxy: Halo Galaxies: Structure Cosmology: Observations
WOS标题词Science & Technology ; Physical Sciences
资助者NSFC(11303033 ; NSFC(11303033 ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; National Natural Science Foundation of China (NSFC)(11603032) ; National Natural Science Foundation of China (NSFC)(11603032) ; National Thousand Young Talents Program of China ; National Thousand Young Talents Program of China ; National Natural Science Foundation of China(11673020 ; National Natural Science Foundation of China(11673020 ; Ministry of Science and Technology of China (National Key Program for Science and Technology Research and Development)(2016YFA0400700) ; Ministry of Science and Technology of China (National Key Program for Science and Technology Research and Development)(2016YFA0400700) ; 1151113005411333001 ; 1151113005411333001 ; 11421303) ; 11421303) ; 11133003 ; 11133003 ; 11425312) ; 11425312) ; NSFC(11303033 ; NSFC(11303033 ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; National Natural Science Foundation of China (NSFC)(11603032) ; National Natural Science Foundation of China (NSFC)(11603032) ; National Thousand Young Talents Program of China ; National Thousand Young Talents Program of China ; National Natural Science Foundation of China(11673020 ; National Natural Science Foundation of China(11673020 ; Ministry of Science and Technology of China (National Key Program for Science and Technology Research and Development)(2016YFA0400700) ; Ministry of Science and Technology of China (National Key Program for Science and Technology Research and Development)(2016YFA0400700) ; 1151113005411333001 ; 1151113005411333001 ; 11421303) ; 11421303) ; 11133003 ; 11133003 ; 11425312) ; 11425312)
DOI10.1093/mnras/stx733
关键词[WOS]DIGITAL-SKY-SURVEY ; MASS-DENSITY PROFILE ; SPECTROSCOPICALLY SELECTED SAMPLE ; GRAVITATIONAL LENS ; ACS SURVEY ; DATA RELEASE ; ADAPTIVE OPTICS ; DARK ENERGY ; TIME DELAYS ; EVOLUTION
收录类别SCI
语种英语
资助者NSFC(11303033 ; NSFC(11303033 ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; National Natural Science Foundation of China (NSFC)(11603032) ; National Natural Science Foundation of China (NSFC)(11603032) ; National Thousand Young Talents Program of China ; National Thousand Young Talents Program of China ; National Natural Science Foundation of China(11673020 ; National Natural Science Foundation of China(11673020 ; Ministry of Science and Technology of China (National Key Program for Science and Technology Research and Development)(2016YFA0400700) ; Ministry of Science and Technology of China (National Key Program for Science and Technology Research and Development)(2016YFA0400700) ; 1151113005411333001 ; 1151113005411333001 ; 11421303) ; 11421303) ; 11133003 ; 11133003 ; 11425312) ; 11425312) ; NSFC(11303033 ; NSFC(11303033 ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; National Natural Science Foundation of China (NSFC)(11603032) ; National Natural Science Foundation of China (NSFC)(11603032) ; National Thousand Young Talents Program of China ; National Thousand Young Talents Program of China ; National Natural Science Foundation of China(11673020 ; National Natural Science Foundation of China(11673020 ; Ministry of Science and Technology of China (National Key Program for Science and Technology Research and Development)(2016YFA0400700) ; Ministry of Science and Technology of China (National Key Program for Science and Technology Research and Development)(2016YFA0400700) ; 1151113005411333001 ; 1151113005411333001 ; 11421303) ; 11421303) ; 11133003 ; 11133003 ; 11425312) ; 11425312)
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000402808700098
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8805
专题星系宇宙学研究部
作者单位1.Chinese Acad Sci, Key Lab Computat Astrophys, Natl Astron Observ, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
3.Univ Sci & Technol China, Dept Astron, CAS Key Lab Res Galaxies & Cosmol, Hefei, Peoples R China
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Wang, Lin,Shu, Yiping,Li, Ran,et al. SDSS J1640+1932: a spectacular galaxy-quasar strong lens system[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,468(3):3757-3763.
APA Wang, Lin,Shu, Yiping,Li, Ran,Zheng, Zheng,Wen, Zhonglue,&Liu, Guilin.(2017).SDSS J1640+1932: a spectacular galaxy-quasar strong lens system.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,468(3),3757-3763.
MLA Wang, Lin,et al."SDSS J1640+1932: a spectacular galaxy-quasar strong lens system".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 468.3(2017):3757-3763.
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