Discovery of the Lensed Quasar System des J0408-5354

H. Lin; E. Buckley-Geer; A. Agnello; F. Ostrovski; R. G. McMahon; B. Nord; N. Kuropatkin; D. L. Tucker; T. Treu; J. H.H. Chan; S. H. Suyu; H. T. Diehl; T. Collett; M. S.S. Gill; A. More; A. Amara; M. W. Auger; F. Courbin; C. D. Fassnacht; J. Frieman; P. J. Marshall; G. Meylan; C. E. Rusu; T. M.C. Abbott; F. B. Abdalla; S. Allam; M. Banerji; K. Bechtol; A. Benoit-Lévy; E. Bertin; D. Brooks; D. L. Burke; A. Carnero Rosell; M. Carrasco Kind; J. Carretero; F. J. Castander; M. Crocce; C. B. D'Andrea; L. N.Da Costa; S. Desai; J. P. Dietrich; T. F. Eifler; D. A. Finley; B. Flaugher; P. Fosalba; J. García-Bellido; E. Gaztanaga; D. W. Gerdes; D. A. Goldstein; D. Gruen; R. A. Gruendl; J. Gschwend; G. Gutierrez; K. Honscheid; D. J. James; K. Kuehn; O. Lahav; T. S. Li; M. Lima; M. A.G. Maia; M. March; J. L. Marshall; P. Martini; P. Melchior; F. Menanteau; R. Miquel; R. L.C. Ogando; A. A. Plazas; A. K. Romer; E. Sanchez; R. Schindler; M. Schubnell; I. Sevilla-Noarbe; M. Smith; R. C. Smith; F. Sobreira; E. Suchyta; M. E.C. Swanson; G. Tarle; D. Thomas; A. R. Walker

doi:10.3847/2041-8213/aa624e

Discovery of the Lensed Quasar System des J0408-5354

H. Lin, E. Buckley-Geer, A. Agnello, F. Ostrovski, R. G. McMahon, B. Nord, N. Kuropatkin, D. L. Tucker, T. Treu, J. H.H. Chan, S. H. Suyu, H. T. Diehl, T. Collett, M. S.S. Gill, A. More, A. Amara, M. W. Auger, F. Courbin, C. D. Fassnacht, J. FriemanP. J. Marshall, G. Meylan, C. E. Rusu, T. M.C. Abbott, F. B. Abdalla, S. Allam, M. Banerji, K. Bechtol, A. Benoit-Lévy, E. Bertin, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, F. J. Castander, M. Crocce, C. B. D'Andrea, L. N.Da Costa, S. Desai, J. P. Dietrich, T. F. Eifler, D. A. Finley, B. Flaugher, P. Fosalba, J. García-Bellido, E. Gaztanaga, D. W. Gerdes, D. A. Goldstein, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, K. Honscheid, D. J. James, K. Kuehn, O. Lahav, T. S. Li, M. Lima, M. A.G. Maia, M. March, J. L. Marshall, P. Martini, P. Melchior, F. Menanteau, R. Miquel, R. L.C. Ogando, A. A. Plazas, A. K. Romer, E. Sanchez, R. Schindler, M. Schubnell, I. Sevilla-Noarbe, M. Smith, R. C. Smith, F. Sobreira, E. Suchyta, M. E.C. Swanson, G. Tarle, D. Thomas, A. R. Walker

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Abstract

© 2017 Published by Elsevier B.V. We report the discovery and spectroscopic confirmation of the quad-like lensed quasar system DES J0408-5354 found in the Dark Energy Survey (DES) Year 1 (Y1) data. This system was discovered during a search for DES Y1 strong lensing systems using a method that identified candidates as red galaxies with multiple blue neighbors. DES J0408-5354 consists of a central red galaxy surrounded by three bright (i < 20) blue objects and a fourth red object. Subsequent spectroscopic observations using the Gemini South telescope confirmed that the three blue objects are indeed the lensed images of a quasar with redshift z = 2.375, and that the central red object is an earlytype lensing galaxy with redshift z = 0.597. DES J0408-5354 is the first quad lensed quasar system to be found in DES and begins to demonstrate the potential of DES to discover and dramatically increase the sample size of these very rare objects.

Original language	English
Article number	L15
Journal	Astrophysical Journal Letters
Volume	838
Issue number	2
DOIs	https://doi.org/10.3847/2041-8213/aa624e
Publication status	Published - 1 Apr 2017

Keywords

gravitational lensing: strong
quasars: general
surveys

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10.3847/2041-8213/aa624e

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Lin, H., Buckley-Geer, E., Agnello, A., Ostrovski, F., McMahon, R. G., Nord, B., Kuropatkin, N., Tucker, D. L., Treu, T., Chan, J. H. H., Suyu, S. H., Diehl, H. T., Collett, T., Gill, M. S. S., More, A., Amara, A., Auger, M. W., Courbin, F., Fassnacht, C. D., ... Walker, A. R. (2017). Discovery of the Lensed Quasar System des J0408-5354. Astrophysical Journal Letters, 838(2), Article L15. https://doi.org/10.3847/2041-8213/aa624e

@article{766f46078f9d410cb877a8f11b497075,

title = "Discovery of the Lensed Quasar System des J0408-5354",

abstract = "{\textcopyright} 2017 Published by Elsevier B.V. We report the discovery and spectroscopic confirmation of the quad-like lensed quasar system DES J0408-5354 found in the Dark Energy Survey (DES) Year 1 (Y1) data. This system was discovered during a search for DES Y1 strong lensing systems using a method that identified candidates as red galaxies with multiple blue neighbors. DES J0408-5354 consists of a central red galaxy surrounded by three bright (i < 20) blue objects and a fourth red object. Subsequent spectroscopic observations using the Gemini South telescope confirmed that the three blue objects are indeed the lensed images of a quasar with redshift z = 2.375, and that the central red object is an earlytype lensing galaxy with redshift z = 0.597. DES J0408-5354 is the first quad lensed quasar system to be found in DES and begins to demonstrate the potential of DES to discover and dramatically increase the sample size of these very rare objects.",

keywords = "gravitational lensing: strong, quasars: general, surveys",

author = "H. Lin and E. Buckley-Geer and A. Agnello and F. Ostrovski and McMahon, \{R. G.\} and B. Nord and N. Kuropatkin and Tucker, \{D. L.\} and T. Treu and Chan, \{J. H.H.\} and Suyu, \{S. H.\} and Diehl, \{H. T.\} and T. Collett and Gill, \{M. S.S.\} and A. More and A. Amara and Auger, \{M. W.\} and F. Courbin and Fassnacht, \{C. D.\} and J. Frieman and Marshall, \{P. J.\} and G. Meylan and Rusu, \{C. E.\} and Abbott, \{T. M.C.\} and Abdalla, \{F. B.\} and S. Allam and M. Banerji and K. Bechtol and A. Benoit-L{\'e}vy and E. Bertin and D. Brooks and Burke, \{D. L.\} and Rosell, \{A. Carnero\} and Kind, \{M. Carrasco\} and J. Carretero and Castander, \{F. J.\} and M. Crocce and D'Andrea, \{C. B.\} and Costa, \{L. N.Da\} and S. Desai and Dietrich, \{J. P.\} and Eifler, \{T. F.\} and Finley, \{D. A.\} and B. Flaugher and P. Fosalba and J. Garc{\'i}a-Bellido and E. Gaztanaga and Gerdes, \{D. W.\} and Goldstein, \{D. A.\} and D. Gruen and Gruendl, \{R. A.\} and J. Gschwend and G. Gutierrez and K. Honscheid and James, \{D. J.\} and K. Kuehn and O. Lahav and Li, \{T. S.\} and M. Lima and Maia, \{M. A.G.\} and M. March and Marshall, \{J. L.\} and P. Martini and P. Melchior and F. Menanteau and R. Miquel and Ogando, \{R. L.C.\} and Plazas, \{A. A.\} and Romer, \{A. K.\} and E. Sanchez and R. Schindler and M. Schubnell and I. Sevilla-Noarbe and M. Smith and Smith, \{R. C.\} and F. Sobreira and E. Suchyta and Swanson, \{M. E.C.\} and G. Tarle and D. Thomas and Walker, \{A. R.\}",

year = "2017",

month = apr,

day = "1",

doi = "10.3847/2041-8213/aa624e",

language = "English",

volume = "838",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "American Astronomical Society",

number = "2",

}

Lin, H, Buckley-Geer, E, Agnello, A, Ostrovski, F, McMahon, RG, Nord, B, Kuropatkin, N, Tucker, DL, Treu, T, Chan, JHH, Suyu, SH, Diehl, HT, Collett, T, Gill, MSS, More, A, Amara, A, Auger, MW, Courbin, F, Fassnacht, CD, Frieman, J, Marshall, PJ, Meylan, G, Rusu, CE, Abbott, TMC, Abdalla, FB, Allam, S, Banerji, M, Bechtol, K, Benoit-Lévy, A, Bertin, E, Brooks, D, Burke, DL, Rosell, AC, Kind, MC, Carretero, J, Castander, FJ, Crocce, M, D'Andrea, CB, Costa, LND, Desai, S, Dietrich, JP, Eifler, TF, Finley, DA, Flaugher, B, Fosalba, P, García-Bellido, J, Gaztanaga, E, Gerdes, DW, Goldstein, DA, Gruen, D, Gruendl, RA, Gschwend, J, Gutierrez, G, Honscheid, K, James, DJ, Kuehn, K, Lahav, O, Li, TS, Lima, M, Maia, MAG, March, M, Marshall, JL, Martini, P, Melchior, P, Menanteau, F, Miquel, R, Ogando, RLC, Plazas, AA, Romer, AK, Sanchez, E, Schindler, R, Schubnell, M, Sevilla-Noarbe, I, Smith, M, Smith, RC, Sobreira, F, Suchyta, E, Swanson, MEC, Tarle, G, Thomas, D & Walker, AR 2017, 'Discovery of the Lensed Quasar System des J0408-5354', Astrophysical Journal Letters, vol. 838, no. 2, L15. https://doi.org/10.3847/2041-8213/aa624e

TY - JOUR

T1 - Discovery of the Lensed Quasar System des J0408-5354

AU - Lin, H.

AU - Buckley-Geer, E.

AU - Agnello, A.

AU - Ostrovski, F.

AU - McMahon, R. G.

AU - Nord, B.

AU - Kuropatkin, N.

AU - Tucker, D. L.

AU - Treu, T.

AU - Chan, J. H.H.

AU - Suyu, S. H.

AU - Diehl, H. T.

AU - Collett, T.

AU - Gill, M. S.S.

AU - More, A.

AU - Amara, A.

AU - Auger, M. W.

AU - Courbin, F.

AU - Fassnacht, C. D.

AU - Frieman, J.

AU - Marshall, P. J.

AU - Meylan, G.

AU - Rusu, C. E.

AU - Abbott, T. M.C.

AU - Abdalla, F. B.

AU - Allam, S.

AU - Banerji, M.

AU - Bechtol, K.

AU - Benoit-Lévy, A.

AU - Bertin, E.

AU - Brooks, D.

AU - Burke, D. L.

AU - Rosell, A. Carnero

AU - Kind, M. Carrasco

AU - Carretero, J.

AU - Castander, F. J.

AU - Crocce, M.

AU - D'Andrea, C. B.

AU - Costa, L. N.Da

AU - Desai, S.

AU - Dietrich, J. P.

AU - Eifler, T. F.

AU - Finley, D. A.

AU - Flaugher, B.

AU - Fosalba, P.

AU - García-Bellido, J.

AU - Gaztanaga, E.

AU - Gerdes, D. W.

AU - Goldstein, D. A.

AU - Gruen, D.

AU - Gruendl, R. A.

AU - Gschwend, J.

AU - Gutierrez, G.

AU - Honscheid, K.

AU - James, D. J.

AU - Kuehn, K.

AU - Lahav, O.

AU - Li, T. S.

AU - Lima, M.

AU - Maia, M. A.G.

AU - March, M.

AU - Marshall, J. L.

AU - Martini, P.

AU - Melchior, P.

AU - Menanteau, F.

AU - Miquel, R.

AU - Ogando, R. L.C.

AU - Plazas, A. A.

AU - Romer, A. K.

AU - Sanchez, E.

AU - Schindler, R.

AU - Schubnell, M.

AU - Sevilla-Noarbe, I.

AU - Smith, M.

AU - Smith, R. C.

AU - Sobreira, F.

AU - Suchyta, E.

AU - Swanson, M. E.C.

AU - Tarle, G.

AU - Thomas, D.

AU - Walker, A. R.

PY - 2017/4/1

Y1 - 2017/4/1

N2 - © 2017 Published by Elsevier B.V. We report the discovery and spectroscopic confirmation of the quad-like lensed quasar system DES J0408-5354 found in the Dark Energy Survey (DES) Year 1 (Y1) data. This system was discovered during a search for DES Y1 strong lensing systems using a method that identified candidates as red galaxies with multiple blue neighbors. DES J0408-5354 consists of a central red galaxy surrounded by three bright (i < 20) blue objects and a fourth red object. Subsequent spectroscopic observations using the Gemini South telescope confirmed that the three blue objects are indeed the lensed images of a quasar with redshift z = 2.375, and that the central red object is an earlytype lensing galaxy with redshift z = 0.597. DES J0408-5354 is the first quad lensed quasar system to be found in DES and begins to demonstrate the potential of DES to discover and dramatically increase the sample size of these very rare objects.

AB - © 2017 Published by Elsevier B.V. We report the discovery and spectroscopic confirmation of the quad-like lensed quasar system DES J0408-5354 found in the Dark Energy Survey (DES) Year 1 (Y1) data. This system was discovered during a search for DES Y1 strong lensing systems using a method that identified candidates as red galaxies with multiple blue neighbors. DES J0408-5354 consists of a central red galaxy surrounded by three bright (i < 20) blue objects and a fourth red object. Subsequent spectroscopic observations using the Gemini South telescope confirmed that the three blue objects are indeed the lensed images of a quasar with redshift z = 2.375, and that the central red object is an earlytype lensing galaxy with redshift z = 0.597. DES J0408-5354 is the first quad lensed quasar system to be found in DES and begins to demonstrate the potential of DES to discover and dramatically increase the sample size of these very rare objects.

KW - gravitational lensing: strong

KW - quasars: general

KW - surveys

UR - https://www.scopus.com/pages/publications/85017326691

U2 - 10.3847/2041-8213/aa624e

DO - 10.3847/2041-8213/aa624e

M3 - Article

SN - 2041-8205

VL - 838

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 2

M1 - L15

ER -

Discovery of the Lensed Quasar System des J0408-5354

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