The STRong lensing Insights into the Dark Energy Survey (STRIDES) 2016 follow-up campaign - II. New quasar lenses from double component fitting

被引：37

作者：

Anguita, T. ^{[1
,2
]}

Schechter, P. L. ^{[3
]}

Kuropatkin, N. ^{[4
]}

Morgan, N. D. ^{[5
]}

Ostrovski, F. ^{[6
,7
]}

Abramson, L. E. ^{[8
]}

Agnello, A. ^{[9
]}

Apostolovski, Y. ^{[1
]}

Fassnacht, C. D. ^{[10
]}

Hsueh, J. W. ^{[10
]}

Motta, V. ^{[11
]}

Rojas, K. ^{[11
]}

Rusu, C. E. ^{[12
]}

Treu, T. ^{[8
]}

Williams, P. ^{[8
]}

Auger, M. ^{[6
]}

Buckley-Geer, E. ^{[4
]}

Lin, H. ^{[4
]}

McMahon, R. ^{[6
]}

Abbott, T. M. C. ^{[13
]}

Allam, S. ^{[4
]}

Annis, J. ^{[4
]}

Bernstein, R. A. ^{[14
]}

Bertin, E. ^{[15
,16
]}

Brooks, D. ^{[17
]}

Burke, D. L. ^{[18
,19
]}

Carnero Rosell, A. ^{[20
,21
]}

Carrasco-Kind, M. ^{[22
,23
]}

Carretero, J. ^{[24
]}

Cunha, C. E. ^{[18
]}

D'Andrea, C. B. ^{[25
]}

De Vicente, J. ^{[26
]}

DePoy, D. L. ^{[27
]}

Desai, S. ^{[28
]}

Diehl, H. T. ^{[4
]}

Doel, P. ^{[17
]}

Flaugher, B. ^{[4
]}

Garcia-Bellido, J. ^{[29
]}

Gerdes, D. W. ^{[30
,31
]}

Gruen, D. ^{[18
,19
]}

Gruendl, R. A. ^{[22
,23
]}

Gschwend, J. ^{[20
,21
]}

Hartley, W. G. ^{[17
,32
]}

Hollowood, D. L. ^{[33
]}

Honscheid, K. ^{[34
,35
]}

James, J. ^{[36
]}

Kuehn, K. ^{[37
]}

Lima, M. ^{[20
,38
]}

Maia, M. A. G. ^{[20
,21
]}

Miquel, R. ^{[39
]}

机构：

[1] Univ Andres Bello, Dept Ciencias Fis, Fernandez Concha 700, Santiago 7591538, Chile

[2] Millennium Inst Astrophys, Monsenor Nuncio Soren Sanz 100,Oficina 104, Santiago 7500011, Chile

[3] MIT, Kavli Inst Astrophys & Space Res, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[4] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA

[5] Staples High Sch, Westport, CT 06880 USA

[6] Inst Astron, Madingley Rd, Cambridge CB3 0HA, England

[7] Minist Educ Brazil, CAPES Fdn, BR-70040020 Brasilia, DF, Brazil

[8] PAB, Dept Phys & Astron, 430 Portola Plaza,Box 951547, Los Angeles, CA 90095 USA

[9] European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, DE, Germany

[10] Univ Calif Davis, Dept Phys, 1 Shields Ave, Davis, CA 95616 USA

[11] Univ Valparaiso, Inst Fis & Astron, Avda Gran Bretana 1111, Valparaiso 2360102, Chile

[12] Natl Astron Observ Japan, Subaru Telescope, 650 N Aohoku PI, Hilo, HI 96720 USA

[13] Natl Opt Astron Observ, Cerro Tololo Interamer Observ, Casilla 603, La Serena, Chile

[14] Observ Carnegie Inst Washington, 813 Santa Barbara St, Pasadena, CA 91101 USA

[15] CNRS, UMR 7095, Inst Astrophys Paris, F-75014 Paris, France

[16] Univ Paris 06, Sorbonne Univ, UPMC, UMR 7095,Inst Astrophys Paris, F-75014 Paris, France

[17] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England

[18] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, POB 2450, Stanford, CA 94305 USA

[19] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

[20] Lab Interinst eAstron LIneA, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil

[21] Observ Nacl, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil

[22] Univ Illinois Urban Champaign, Dept Astron, 1002 W Green St, Urbana, IL 61801 USA

[23] Natl Ctr Supercomp Applicat, 1205 West Clark St, Urbana, IL 61801 USA

[24] Barcelona Inst Sci & Technol, IFAE, Campus UAB, E-08193 Bellaterra, Barcelona, Spain

[25] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

[26] Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid 28040, Spain

[27] Texas A&M Univ, George P & Cynthia Woods Mitchell Inst Fundamenta, Dept Phys & Astron, College Stn, TX 77843 USA

[28] IIT Hyderabad, Dept Phys, Kandi 502285, Telangana, India

[29] Univ Autonoma Madrid, Inst Fis Teor UAM CSIC, E-28049 Madrid, Spain

[30] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA

[31] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[32] Swiss Fed Inst Technol, Dept Phys, Wolfgang Pauli Str 16, CH-8093 Zurich, Switzerland

[33] Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA

[34] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA

[35] Ohio State Univ, Dept Phys, 174 W 18th Ave, Columbus, OH 43210 USA

[36] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

[37] Australian Astron Observ, N Ryde, NSW 2113, Australia

[38] Univ Sao Paulo, Inst Fis, Dept Fis Matemat, CP 66318, BR-05314970 Sao Paulo, SP, Brazil

[39] Inst Catalana Recerca & Estudis Avancats, E-08010 Barcelona, Spain

[40] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA

[41] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

[42] Brandeis Univ, Dept Phys, 415 South St, Waltham, MA 02453 USA

[43] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP, Brazil

[44] Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2018年 / 480卷 / 04期

基金：

美国国家科学基金会; 英国科学技术设施理事会; 美国国家航空航天局; 欧洲研究理事会; 澳大利亚研究理事会;

关键词：

gravitational lensing: strong; techniques: image processing; surveys; quasars: general; DIGITAL-SKY-SURVEY; CANDIDATE SELECTION; SPECTROSCOPY;

D O I：

10.1093/mnras/sty2172

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report upon the follow-up of 34 candidate lensed quasars found in the Dark Energy Survey using NTTEFOSC, Magellan-IMACS, KECK-ESI, and SOAR-SAMI. These candidates were selected by a combination of double component fitting, morphological assessment, and colour analysis. Most systems followed up are indeed composed of at least one quasar image and 13 with two or more quasar images: two lenses, four projected binaries, and seven nearly identical quasar pairs (NIQs). The two systems confirmed as genuine gravitationally lensed quasars are one quadruple at z(s) = 1.713 and one double at z(s) = 1.515. Lens modelling of these two systems reveals that both systems require very little contribution from the environment to reproduce the image configuration. Nevertheless, small flux anomalies can be observed in one of the images of the quad. Further observations of nine inconclusive systems (including seven NIQs) will allow to confirm (or not) their gravitational lens nature.

引用

页码：5017 / 5028

页数：12

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