An Extended Catalog of Galaxy-Galaxy Strong Gravitational Lenses Discovered in DES Using Convolutional Neural Networks

被引：133

作者：

Jacobs, C. ^{[1
,2
]}

Collett, T. ^{[3
]}

Glazebrook, K. ^{[1
,2
]}

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

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

Lin, H. ^{[4
]}

McCarthy, C. ^{[5
]}

Qin, A. K. ^{[5
]}

Odden, C. ^{[4
,6
]}

Escudero, M. Caso ^{[4
,6
]}

Dial, P. ^{[4
,6
]}

Yung, V. J. ^{[4
,6
]}

Gaitsch, S. ^{[4
]}

Pellico, A. ^{[4
]}

Lindgren, K. A. ^{[4
]}

Abbott, T. M. C. ^{[7
]}

Annis, J. ^{[4
]}

Avila, S. ^{[8
]}

Brooks, D. ^{[9
]}

Burke, D. L. ^{[10
,11
]}

Carnero Rosell, A. ^{[12
,13
]}

Kind, M. Carrasco ^{[14
,15
]}

Carretero, J. ^{[16
]}

da Costa, L. N. ^{[13
,17
]}

De Vicente, J. ^{[12
]}

Fosalba, P. ^{[18
,19
]}

Frieman, J. ^{[4
,20
]}

Garcia-Bellido, J. ^{[8
]}

Gaztanaga, E. ^{[18
,19
]}

Goldstein, D. A. ^{[21
]}

Gruen, D. ^{[10
,11
,22
]}

Gruendl, R. A. ^{[15
]}

Gschwend, J. ^{[13
,17
]}

Hollowood, D. L. ^{[23
]}

Honscheid, K. ^{[24
,25
]}

Hoyle, B. ^{[26
,27
]}

James, D. J. ^{[28
]}

Krause, E. ^{[29
]}

Kuropatkin, N. ^{[4
]}

Lahav, O. ^{[9
]}

Lima, M. ^{[13
,30
]}

Maia, M. A. G. ^{[13
,17
]}

Marshall, J. L. ^{[31
,32
]}

Miquel, R. ^{[16
,33
]}

Plazas, A. A. ^{[34
]}

Roodman, A. ^{[10
,11
]}

Sanchez, E. ^{[12
]}

Scarpine, V. ^{[4
]}

Serrano, S. ^{[18
,19
]}

Sevilla-Noarbe, I. ^{[12
]}

机构：

[1] Swinburne Univ Technol, Ctr Astrophys & Supercomp, POB 218, Hawthorn, Vic 3122, Australia

[2] Swinburne Univ Technol, ARC Ctr Excellence All Sky Astrophys 3 Dimens AST, Hawthorn, Vic 3122, Australia

[3] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England

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

[5] Swinburne Univ Technol, Sch Software & Elect Engn, POB 218, Hawthorn, Vic 3122, Australia

[6] Phillips Acad, Andover, MA 01810 USA

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

[8] UAM, CSIC, Inst Fis Teor, E-28049 Madrid, Spain

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

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

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

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

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

[14] Univ Illinois, Dept Astron, 1002 W Green St, Urbana, IL 61801 USA

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

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

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

[18] IEEC, E-08034 Barcelona, Spain

[19] CSIC, Inst Space Sci ICE, Campus UAB,Carrer Can Magrans S-N, E-08193 Barcelona, Spain

[20] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA

[21] CALTECH, 1200 East Calif Blvd,MC 249-17, Pasadena, CA 91125 USA

[22] Stanford Univ, Dept Phys, 382 Via Pueblo Mall, Stanford, CA 94305 USA

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

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

[25] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[26] Max Planck Inst Extraterr Phys, Giessenbachstr, D-85748 Garching, Germany

[27] Ludwig Maximilians Univ Munchen, Univ Sternwarte, Fak Phys, Scheinerstr 1, D-81679 Munich, Germany

[28] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[29] Univ Arizona, Steward Observ, Dept Astron, 933 North Cherry Ave, Tucson, AZ 85721 USA

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

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

[32] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA

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

[34] Princeton Univ, Dept Astrophys Sci, Peyton Hall, Princeton, NJ 08544 USA

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

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

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

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

[39] Argonne Natl Lab, 9700 South Cass Ave, Lemont, IL 60439 USA

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2019年 / 243卷 / 01期

基金：

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

关键词：

gravitational lensing: strong; methods: data analysis; methods: statistical; surveys; KILO-DEGREE SURVEY; SPACE WARPS; SUBSTRUCTURE; CLUSTERS; PLANE; II;

D O I：

10.3847/1538-4365/ab26b6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We search Dark Energy Survey (DES) Year 3 imaging for galaxy-galaxy strong gravitational lenses using convolutional neural networks, extending previous work with new training sets and covering a wider range of redshifts and colors. We train two neural networks using images of simulated lenses, then use them to score postage-stamp images of 7.9 million sources from DES chosen to have plausible lens colors based on simulations. We examine 1175 of the highest-scored candidates and identify 152 probable or definite lenses. Examining an additional 20,000 images with lower scores, we identify a further 247 probable or definite candidates. After including 86 candidates discovered in earlier searches using neural networks and 26 candidates discovered through visual inspection of blue-near-red objects in the DES catalog, we present a catalog of 511 lens candidates.

引用

页数：11

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