Observation and confirmation of nine strong-lensing systems in Dark Energy Survey Year 1 data

Journal Article · Tue Jan 28 00:00:00 EST 2020 · Monthly Notices of the Royal Astronomical Society

DOI:https://doi.org/10.1093/mnras/staa200· OSTI ID:1632745

Nord, B.  ^[1]; Buckley-Geer, E. ^[2]; Lin, H. ^[2]; Kuropatkin, N. ^[2]; Collett, T.  ^[3]; Tucker, D. L. ^[2]; Diehl, H. T. ^[2]; Agnello, A. ^[4]; Amara, A. ^[5]; Abbott, T. M. C. ^[6]; Allam, S. ^[2]; Annis, J. ^[2]; Avila, S.  ^[3]; Bechtol, K. ^[7]; Brooks, D. ^[8]; Burke, D. L. ^[9]; Carnero Rosell, A. ^[10]; Carrasco Kind, M.  ^[11]; Carretero, J. ^[12]; Cunha, C. E. ^[13] ; da Costa, L. N. ^[14]; Davis, C.  ^[13]; De Vicente, J. ^[15]; Doel, P. ^[8]; Eifler, T. F. ^[16]; Evrard, A. E.  ^[17]; Fernandez, E. ^[12]; Flaugher, B. ^[2]; Fosalba, P. ^[18]; Frieman, J. ^[19]; García-Bellido, J. ^[20]; Gaztanaga, E.  ^[18]; Gruen, D.  ^[21]; Gruendl, R. A. ^[11]; Gutierrez, G. ^[2]; Hartley, W. G. ^[22]; Hollowood, D. L. ^[23]; Honscheid, K. ^[24]; Hoyle, B.  ^[25]; James, D. J. ^[26]; Kuehn, K. ^[27]; Lahav, O. ^[8]; Lima, M. ^[28]; Maia, M. A. G. ^[14]; March, M.  ^[29]; Marshall, J. L. ^[30]; Melchior, P. ^[31]; Menanteau, F. ^[11]; Miquel, R. ^[32]; Plazas, A. A.  ^[33]; Romer, A. K. ^[34]; Roodman, A. ^[9]; Rykoff, E. S. ^[9]; Sanchez, E. ^[15]; Scarpine, V. ^[2]; Schindler, R. ^[35]; Schubnell, M. ^[36]; Sevilla-Noarbe, I. ^[15]; Smith, M.  ^[37]; Soares-Santos, M. ^[38]; Sobreira, F. ^[39]; Suchyta, E.  ^[40]; Swanson, M. E. C. ^[41]; Tarle, G. ^[36]; Thomas, D.  ^[3]; Zhang, Y.  ^[2]

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1. Fermi National Accelerator Laboratory, PO Box 500, Batavia, IL 60510, USA, Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA, Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637, USA
2. Fermi National Accelerator Laboratory, PO Box 500, Batavia, IL 60510, USA
3. Institute of Cosmology and Gravitation, University of Portsmouth, Portsmouth PO1 3FX, UK
4. European Southern Observatory, Karl-Schwarzschild-Strasse 2, D-85748 Garching, Germany
5. Department of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 16, CH-8093 Zurich, Switzerland
6. Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile
7. Large Synoptic Survey Telescope, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA, Physics Department, 2320 Chamberlin Hall, University of Wisconsin-Madison, 1150 University Avenue Madison, WI 53706-1390,USA
8. Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
9. Kavli Institute for Particle Astrophysics and Cosmology, PO Box 2450, Stanford University, Stanford, CA 94305, USA, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
10. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), E-28040 Madrid, Spain, Laboratório Interinstitucional de e-Astronomia – LIneA, Rua Gal. José Cristino 77, RJ-20921-400 Rio de Janeiro, Brazil
11. Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 W. Green Street, Urbana, IL 61801, USA, National Center for Supercomputing Applications, 1205 West Clark St, Urbana, IL 61801, USA
12. Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona), Spain
13. Kavli Institute for Particle Astrophysics and Cosmology, PO Box 2450, Stanford University, Stanford, CA 94305, USA
14. Laboratório Interinstitucional de e-Astronomia – LIneA, Rua Gal. José Cristino 77, RJ-20921-400 Rio de Janeiro, Brazil, Observatório Nacional, Rua Gal. José Cristino 77, RJ-20921-400 Rio de Janeiro, Brazil
15. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), E-28040 Madrid, Spain
16. Department of Astronomy/Steward Observatory, 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA, Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA
17. Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA, Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
18. Institut d’Estudis Espacials de Catalunya (IEEC), E-08034 Barcelona, Spain, Institute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, Spain
19. Fermi National Accelerator Laboratory, PO Box 500, Batavia, IL 60510, USA, Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
20. Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, Spain
21. Kavli Institute for Particle Astrophysics and Cosmology, PO Box 2450, Stanford University, Stanford, CA 94305, USA, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA
22. Department of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 16, CH-8093 Zurich, Switzerland, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
23. Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA
24. Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USA, Department of Physics, The Ohio State University, Columbus, OH 43210, USA
25. Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, Germany, Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians Universität München, Scheinerstrasse 1, D-81679 München, Germany
26. Harvard–Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
27. Australian Astronomical Optics, Macquarie University, North Ryde, NSW 2113, Australia
28. Laboratório Interinstitucional de e-Astronomia – LIneA, Rua Gal. José Cristino 77, RJ-20921-400 Rio de Janeiro, Brazil, Departamento de Física Matemática, Instituto de Física, Universidade de São Paulo, CP 66318, SP-05314-970 São Paulo, Brazil
29. Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA
30. George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USA
31. Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA
32. Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona), Spain, Institució Catalana de Recerca i Estudis Avançats, E-08010 Barcelona, Spain
33. Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA
34. Department of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton BN1 9QH, UK
35. SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
36. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
37. School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK
38. Physics Department, Brandeis University, 415 South Street, Waltham, MA 02453, USA
39. Laboratório Interinstitucional de e-Astronomia – LIneA, Rua Gal. José Cristino 77, RJ-20921-400 Rio de Janeiro, Brazil, Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, 13083-859 Campinas, SP, Brazil
40. Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
41. National Center for Supercomputing Applications, 1205 West Clark St, Urbana, IL 61801, USA

In this paper, we describe the observation and confirmation of nine new strong gravitational lenses discovered in Year 1 data from the Dark Energy Survey (DES). We created candidate lists based on (i) galaxy group and cluster samples, and (ii) photometrically selected galaxy samples. We selected 46 candidates through visual inspection and then used the Gemini Multi-Object Spectrograph(GMOS) at the Gemini South telescope to acquire a spectroscopic follow-up of 21 of these candidates. Through an analysis of these spectroscopic follow-up data, we confirmed nine new lensing systems and rejected two candidates, and the analysis was inconclusive on 10 candidates. For each of the confirmed systems, our report measured spectroscopic properties, estimated source image–lens separations, and estimated enclosed masses as well. The sources that we targeted have an i-band surface brightness range of $$i_{\rm SB} \sim 22\!-\!24\, {\rm mag}\,{\rm arcsec}^{-2}$$ and a spectroscopic redshift range of z_spec ~ 0.8-2.6. The lens galaxies have a photometric redshift range of z_lens ~ 0.3-0.7. The lensing systems range in source image–lens separation from 2 to 9 arcsec and in enclosed mass from 10¹² to 10¹³M_⊙.

• Research Organization: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Michigan, Ann Arbor, MI (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP); Ministry of Economic Affairs and Digital Transformation of Spain (MINECO); National Science Foundation (NSF); Centro de Excelencia Severo Ochoa
• Contributing Organization: DES Collaboration
• Grant/Contract Number: AC02-07CH11359; AC02-76SF00515; AST-1138766; AYA2012-39559; ESP2013-48274; FPA2013-47986; SEV-2012-0234; AC05-00OR22725; SC0019193
• OSTI ID: 1632745
• Alternate ID(s): OSTI ID: 1574843; OSTI ID: 1638178; OSTI ID: 1665976; OSTI ID: 1691459; OSTI ID: 1785455
• Report Number(s): FERMILAB-PUB-17-042-PPD; arXiv:1911.02162
• Journal Information: Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Vol. 494 Journal Issue: 1; ISSN 0035-8711
• Publisher: Royal Astronomical Society
• Country of Publication: United Kingdom
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
79 ASTRONOMY AND ASTROPHYSICS
Strong gravitational lensing
spectroscopic techniques
individual galaxies