publication . Article . Research . Preprint . 2017

Models of the Strongly Lensed Quasar DES J0408-5354

D. Brooks; M. G. Smith; L. Buckley-Geer; K. Honscheid; Paul L. Schechter; Christopher D. Fassnacht; Christopher S. Kochanek; Georges Meylan; Richard G. McMahon; Carlos E. Cunha; ...
Open Access English
  • Published: 01 Feb 2017
  • Publisher: HAL CCSD
Abstract
We present gravitational lens models of the multiply imaged quasar DES J0408-5354, recently discovered in the Dark Energy Survey (DES) footprint, with the aim of interpreting its remarkable quad-like configuration. We first model the DES single-epoch $grizY$ images as a superposition of a lens galaxy and four point-like objects, obtaining spectral energy distributions (SEDs) and relative positions for the objects. Three of the point sources (A,B,D) have SEDs compatible with the discovery quasar spectra, while the faintest point-like image (G2/C) shows significant reddening and a `grey' dimming of $\approx0.8$mag. In order to understand the lens configuration, we...
Subjects
arXiv: Astrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy Astrophysics
free text keywords: catalogues, techniques: image processing, gravitational lensing: strong, methods: statistical, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], QB, astro-ph.GA, astro-ph.CO, RCUK, STFC, Gravitational lensing: strong – methods: statistical – astronomical data bases: catalogs – techniques: image processing, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Lentes gravitacionais, Estatística, Processamento de imagens, Catálogos, Gravitational lenses, Statistics, Image processing, Catalogs, Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics, Einstein radius, Astrophysics, Velocity dispersion, Flux, Physics, Redshift, Quasar, Dark energy, Astronomy, Stellar mass, Chromaticity
Funded by
NSF| Collaborative Research: The Dark Energy Survey Data Management Operations
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1138766
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
,
NSF| Collaborative Research: Accurate cosmology with strong gravitational lens time delays
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1450141
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
,
EC| COSMICDAWN
Project
COSMICDAWN
Understanding the Origin of Cosmic Structure
  • Funder: European Commission (EC)
  • Project Code: 306478
  • Funding stream: FP7 | SP2 | ERC
,
EC| TESTDE
Project
TESTDE
Testing the Dark Energy Paradigm and Measuring Neutrino Mass with the Dark Energy Survey
  • Funder: European Commission (EC)
  • Project Code: 291329
  • Funding stream: FP7 | SP2 | ERC
,
EC| COGS
Project
COGS
Capitalizing on Gravitational Shear
  • Funder: European Commission (EC)
  • Project Code: 240672
  • Funding stream: FP7 | SP2 | ERC
109 references, page 1 of 8

Agnello A., 2017, MNRAS, 471, 2013

Agnello A., Kelly B. C., Treu T., Marshall P. J., 2015, MNRAS, 448, 1446

Agnello A. et al., 2015, MNRAS, 454, 1260

Agnello A., Sonnenfeld A., Suyu S. H., Treu T., Fassnacht C. D., Mason C., Bradacˇ M., Auger M. W., 2016, MNRAS, 458, 3830

Auger M. W., Treu T., Bolton A. S., Gavazzi R., Koopmans L. V. E., Marshall P. J., Bundy K., Moustakas L. A., 2009, ApJ, 705, 1099

Bertin E., 2011, in Evans I. N., Accomazzi A., Mink D. J., Rots A. H., eds, ASP Conf. Ser. Vol. 422, Astronomical Data Analysis Software and Systems XX. Astron. Soc. Pac., San Francisco, p. 435

Bonvin V., Tewes M., Courbin F., Kuntzer T., Sluse D., Meylan G., 2016, A&A, 585, A88

Cardelli J. A., Clayton G. C., Mathis J. S., 1989, ApJ, 345, 245

Chan J. H. H., Suyu S. H., Chiueh T., More A., Marshall P. J., Coupon J., Oguri M., Price P., 2015, ApJ, 807, 138

Collett T. E., Auger M. W., Belokurov V., Marshall P. J., Hall A. C., 2012, MNRAS, 424, 2864

Courbin F., Saha P., Schechter P. L., 2002, in Courbin F., D. Minniti D., eds, Lecture Notes in Physics, Vol. 608, Gravitational Lensing: An Astrophysical Tool. Springer-Verlag, Berlin, p. 1

Courbin F. et al., 2017, A&A, preprint (arXiv:1706.09424)

Dai X., Kochanek C. S., Chartas G., Mathur S., 2006, ApJ, 637, 53

Dalal N., Kochanek C. S., 2002, ApJ, 572, 25

Dark Energy Survey Collaboration et al., 2016, MNRAS, 460, 1270

109 references, page 1 of 8
Abstract
We present gravitational lens models of the multiply imaged quasar DES J0408-5354, recently discovered in the Dark Energy Survey (DES) footprint, with the aim of interpreting its remarkable quad-like configuration. We first model the DES single-epoch $grizY$ images as a superposition of a lens galaxy and four point-like objects, obtaining spectral energy distributions (SEDs) and relative positions for the objects. Three of the point sources (A,B,D) have SEDs compatible with the discovery quasar spectra, while the faintest point-like image (G2/C) shows significant reddening and a `grey' dimming of $\approx0.8$mag. In order to understand the lens configuration, we...
Subjects
arXiv: Astrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy Astrophysics
free text keywords: catalogues, techniques: image processing, gravitational lensing: strong, methods: statistical, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], QB, astro-ph.GA, astro-ph.CO, RCUK, STFC, Gravitational lensing: strong – methods: statistical – astronomical data bases: catalogs – techniques: image processing, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Lentes gravitacionais, Estatística, Processamento de imagens, Catálogos, Gravitational lenses, Statistics, Image processing, Catalogs, Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics, Einstein radius, Astrophysics, Velocity dispersion, Flux, Physics, Redshift, Quasar, Dark energy, Astronomy, Stellar mass, Chromaticity
Funded by
NSF| Collaborative Research: The Dark Energy Survey Data Management Operations
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1138766
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
,
NSF| Collaborative Research: Accurate cosmology with strong gravitational lens time delays
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1450141
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
,
EC| COSMICDAWN
Project
COSMICDAWN
Understanding the Origin of Cosmic Structure
  • Funder: European Commission (EC)
  • Project Code: 306478
  • Funding stream: FP7 | SP2 | ERC
,
EC| TESTDE
Project
TESTDE
Testing the Dark Energy Paradigm and Measuring Neutrino Mass with the Dark Energy Survey
  • Funder: European Commission (EC)
  • Project Code: 291329
  • Funding stream: FP7 | SP2 | ERC
,
EC| COGS
Project
COGS
Capitalizing on Gravitational Shear
  • Funder: European Commission (EC)
  • Project Code: 240672
  • Funding stream: FP7 | SP2 | ERC
109 references, page 1 of 8

Agnello A., 2017, MNRAS, 471, 2013

Agnello A., Kelly B. C., Treu T., Marshall P. J., 2015, MNRAS, 448, 1446

Agnello A. et al., 2015, MNRAS, 454, 1260

Agnello A., Sonnenfeld A., Suyu S. H., Treu T., Fassnacht C. D., Mason C., Bradacˇ M., Auger M. W., 2016, MNRAS, 458, 3830

Auger M. W., Treu T., Bolton A. S., Gavazzi R., Koopmans L. V. E., Marshall P. J., Bundy K., Moustakas L. A., 2009, ApJ, 705, 1099

Bertin E., 2011, in Evans I. N., Accomazzi A., Mink D. J., Rots A. H., eds, ASP Conf. Ser. Vol. 422, Astronomical Data Analysis Software and Systems XX. Astron. Soc. Pac., San Francisco, p. 435

Bonvin V., Tewes M., Courbin F., Kuntzer T., Sluse D., Meylan G., 2016, A&A, 585, A88

Cardelli J. A., Clayton G. C., Mathis J. S., 1989, ApJ, 345, 245

Chan J. H. H., Suyu S. H., Chiueh T., More A., Marshall P. J., Coupon J., Oguri M., Price P., 2015, ApJ, 807, 138

Collett T. E., Auger M. W., Belokurov V., Marshall P. J., Hall A. C., 2012, MNRAS, 424, 2864

Courbin F., Saha P., Schechter P. L., 2002, in Courbin F., D. Minniti D., eds, Lecture Notes in Physics, Vol. 608, Gravitational Lensing: An Astrophysical Tool. Springer-Verlag, Berlin, p. 1

Courbin F. et al., 2017, A&A, preprint (arXiv:1706.09424)

Dai X., Kochanek C. S., Chartas G., Mathur S., 2006, ApJ, 637, 53

Dalal N., Kochanek C. S., 2002, ApJ, 572, 25

Dark Energy Survey Collaboration et al., 2016, MNRAS, 460, 1270

109 references, page 1 of 8
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