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Title: Core or Cusps: The Central Dark Matter Profile of a Strong Lensing Cluster with a Bright Central Image at Redshift 1 [Core or Cusps: The Central Dark Matter Profile of a Redshift One Strong Lensing Cluster with a Bright Central Image]

Abstract

We report on SPT-CLJ2011-5228, a giant system of arcs created by a cluster at z = 1.06. The arc system is notable for the presence of a bright central image. The source is a Lyman break galaxy at zs= 2.39 and the mass enclosed within the Einstein ring of radius 14 arcsec is . We perform a full reconstruction of the light profile of the lensed images to precisely infer the parameters of the mass distribution. The brightness of the central image demands that the central total density profile of the lens be shallow. By fitting the dark matter as a generalized Navarro-Frenk-White profile - with a free parameter for the inner density slope - we find that the break radius is kpc, and that the inner density falls with radius to the power -0.38 ±0.04 at 68% confidence. Such a shallow profile is in strong tension with our understanding of relaxed cold dark matter halos; dark matter-only simulations predict that the inner density should fall as . The tension can be alleviated if this cluster is in fact a merger; a two-halo model can also reconstruct the data, with both clumps (density varying as and ) much more consistentmore » with predictions from dark matter-only simulations. At the resolution of our Dark Energy Survey imaging, we are unable to choose between these two models, but we make predictions for forthcoming Hubble Space Telescope imaging that will decisively distinguish between them.« less

Authors:
ORCiD logo [1];  [2]; ORCiD logo [2]; ORCiD logo [1];  [1]; ORCiD logo [2];  [1];  [3]; ORCiD logo [4];  [2]; ORCiD logo [5]; ORCiD logo [6];  [7]; ORCiD logo [8]; ORCiD logo [9];  [2]; ORCiD logo [2];  [10]; ORCiD logo [11];  [12] more »;  [13]; ORCiD logo [14];  [15];  [16];  [17];  [2];  [11];  [18];  [2];  [19]; ORCiD logo [20]; ORCiD logo [21]; ORCiD logo [12];  [16];  [2]; ORCiD logo [22];  [23];  [24];  [11];  [25];  [26];  [16];  [15]; ORCiD logo [6]; ORCiD logo [27];  [28]; ORCiD logo [29];  [18]; ORCiD logo [12]; ORCiD logo [30];  [2];  [31];  [20];  [30]; ORCiD logo [32];  [33];  [34]; ORCiD logo [35]; ORCiD logo [20];  [2]; ORCiD logo [9] « less
  1. Univ. of Portsmouth, Portsmouth (United Kingdom)
  2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. ETH Zurich, Zurich (Switzerland)
  4. ETH Zurich, Zurich (Switzerland); Univ. of California, Los Angeles, CA (United States)
  5. The Univ. of Tokyo, Chiba (Japan)
  6. Texas A & M Univ., College Station, TX (United States)
  7. Univ. of Sussex, Brighton (United Kingdom)
  8. Univ. of Manchester, Manchester (United Kingdom)
  9. National Optical Astronomy Observatory, La Serena (Chile)
  10. Institut d'Astrophysique de Paris, Paris (France); Univ. College London, London (United Kingdom)
  11. Univ. College London, London (United Kingdom)
  12. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  13. Univ. of Illinois, Urbana, IL (United States); National Center for Supercomputing Applications, Urbana, IL (United States)
  14. Institut de Ciencies de l'Espai, Barcelona (Spain)
  15. Univ. of Pennsylvania, Philadelphia, PA (United States)
  16. Lab. Interinstitucional de e-Astronomia - LIneA, Rio de Janeiro (Brazil); Observatorio Nacional, Rio de Janeiro (Brazil)
  17. IIT Hyderabad, Telangana (India)
  18. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  19. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Chicago, Chicago, IL (United States)
  20. Univ. of Michigan, Ann Arbor, MI (United States)
  21. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  22. National Optical Astronomy Observatory, La Serena (Chile); Univ. of Washington, Seattle, WA (United States)
  23. Australian Astronomical Observatory, North Ryde, NSW (Australia)
  24. Argonne National Lab. (ANL), Lemont, IL (United States)
  25. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Texas A & M Univ., College Station, TX (United States)
  26. Lab. Interinstitucional de e-Astronomia - LIneA, Rio de Janeiro (Brazil); Univ. de Sao Paulo, Sao Paulo (Brazil)
  27. The Ohio State Univ., Columbus, OH (United States)
  28. Princeton Univ., Princeton, NJ (United States)
  29. Institucio Catalana de Recerca i Estudis Avancats, Barcelona (Spain); The Barcelona Institute of Science and Technology, Bellaterra (Barcelona) (Spain)
  30. Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas (CIEMAT), Madrid (Spain)
  31. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  32. Univ. of Southampton, Southampton (United Kingdom)
  33. Lab. Interinstitucional de e-Astronomia - LIneA, Rio de Janeiro (Brazil); Univ. Estadual de Campinas, Campinas (Brazil)
  34. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  35. National Center for Supercomputing Applications, Urbana, IL (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
DES
OSTI Identifier:
1374390
Alternate Identifier(s):
OSTI ID: 1355922; OSTI ID: 1458502
Report Number(s):
FERMILAB-PUB-17-124-AE; arXiv:1703.08410
Journal ID: ISSN 1538-4357
Grant/Contract Number:  
AC02-76SF00515; AC02-07CH11359; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal (Online)
Additional Journal Information:
Journal Name: The Astrophysical Journal (Online); Journal Volume: 843; Journal Issue: 2; Journal ID: ISSN 1538-4357
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; dark matter; galaxies: clusters: individual (SPT-CLJ2011-5228); galaxies: halos; gravitational lensing: strong

Citation Formats

Collett, Thomas E., Buckley-Geer, Elizabeth, Lin, Huan, Bacon, David, Nichol, Robert C., Nord, Brian, Morice-Atkinson, Xan, Amara, Adam, Birrer, Simon, Kuropatkin, Nikolay, More, Anupreeta, Papovich, Casey, Romer, Kathy K., Tessore, Nicolas, Abbott, Tim M. C., Allam, Sahar, Annis, James, Benoit-Levy, Aurlien, Brooks, David, Burke, David L., Kind, Matias Carrasco, Castander, Francisco Javier J., D’Andrea, Chris B., da Costa, Luiz N., Desai, Shantanu, Diehl, H. Thomas, Doel, Peter, Eifler, Tim F., Flaugher, Brenna, Frieman, Josh, Gerdes, David W., Goldstein, Daniel A., Gruen, Daniel, Gschwend, Julia, Gutierrez, Gaston, James, David J., Kuehn, Kyler, Kuhlmann, Steve, Lahav, Ofer, Li, Ting S., Lima, Marcos, Maia, Marcio A. G., March, Marisa, Marshall, Jennifer L., Martini, Paul, Melchior, Peter, Miquel, Ramon, Plazas, Andrs A., Rykoff, Eli S., Sanchez, Eusebio, Scarpine, Vic, Schindler, Rafe, Schubnell, Michael, Sevilla-Noarbe, Ignacio, Smith, Mathew, Sobreira, Flavia, Suchyta, Eric, Swanson, Molly E. C., Tarle, Gregory, Tucker, Douglas L., and Walker, Alistair R. Core or Cusps: The Central Dark Matter Profile of a Strong Lensing Cluster with a Bright Central Image at Redshift 1 [Core or Cusps: The Central Dark Matter Profile of a Redshift One Strong Lensing Cluster with a Bright Central Image]. United States: N. p., 2017. Web. doi:10.3847/1538-4357/aa76e6.
Collett, Thomas E., Buckley-Geer, Elizabeth, Lin, Huan, Bacon, David, Nichol, Robert C., Nord, Brian, Morice-Atkinson, Xan, Amara, Adam, Birrer, Simon, Kuropatkin, Nikolay, More, Anupreeta, Papovich, Casey, Romer, Kathy K., Tessore, Nicolas, Abbott, Tim M. C., Allam, Sahar, Annis, James, Benoit-Levy, Aurlien, Brooks, David, Burke, David L., Kind, Matias Carrasco, Castander, Francisco Javier J., D’Andrea, Chris B., da Costa, Luiz N., Desai, Shantanu, Diehl, H. Thomas, Doel, Peter, Eifler, Tim F., Flaugher, Brenna, Frieman, Josh, Gerdes, David W., Goldstein, Daniel A., Gruen, Daniel, Gschwend, Julia, Gutierrez, Gaston, James, David J., Kuehn, Kyler, Kuhlmann, Steve, Lahav, Ofer, Li, Ting S., Lima, Marcos, Maia, Marcio A. G., March, Marisa, Marshall, Jennifer L., Martini, Paul, Melchior, Peter, Miquel, Ramon, Plazas, Andrs A., Rykoff, Eli S., Sanchez, Eusebio, Scarpine, Vic, Schindler, Rafe, Schubnell, Michael, Sevilla-Noarbe, Ignacio, Smith, Mathew, Sobreira, Flavia, Suchyta, Eric, Swanson, Molly E. C., Tarle, Gregory, Tucker, Douglas L., & Walker, Alistair R. Core or Cusps: The Central Dark Matter Profile of a Strong Lensing Cluster with a Bright Central Image at Redshift 1 [Core or Cusps: The Central Dark Matter Profile of a Redshift One Strong Lensing Cluster with a Bright Central Image]. United States. https://doi.org/10.3847/1538-4357/aa76e6
Collett, Thomas E., Buckley-Geer, Elizabeth, Lin, Huan, Bacon, David, Nichol, Robert C., Nord, Brian, Morice-Atkinson, Xan, Amara, Adam, Birrer, Simon, Kuropatkin, Nikolay, More, Anupreeta, Papovich, Casey, Romer, Kathy K., Tessore, Nicolas, Abbott, Tim M. C., Allam, Sahar, Annis, James, Benoit-Levy, Aurlien, Brooks, David, Burke, David L., Kind, Matias Carrasco, Castander, Francisco Javier J., D’Andrea, Chris B., da Costa, Luiz N., Desai, Shantanu, Diehl, H. Thomas, Doel, Peter, Eifler, Tim F., Flaugher, Brenna, Frieman, Josh, Gerdes, David W., Goldstein, Daniel A., Gruen, Daniel, Gschwend, Julia, Gutierrez, Gaston, James, David J., Kuehn, Kyler, Kuhlmann, Steve, Lahav, Ofer, Li, Ting S., Lima, Marcos, Maia, Marcio A. G., March, Marisa, Marshall, Jennifer L., Martini, Paul, Melchior, Peter, Miquel, Ramon, Plazas, Andrs A., Rykoff, Eli S., Sanchez, Eusebio, Scarpine, Vic, Schindler, Rafe, Schubnell, Michael, Sevilla-Noarbe, Ignacio, Smith, Mathew, Sobreira, Flavia, Suchyta, Eric, Swanson, Molly E. C., Tarle, Gregory, Tucker, Douglas L., and Walker, Alistair R. Mon . "Core or Cusps: The Central Dark Matter Profile of a Strong Lensing Cluster with a Bright Central Image at Redshift 1 [Core or Cusps: The Central Dark Matter Profile of a Redshift One Strong Lensing Cluster with a Bright Central Image]". United States. https://doi.org/10.3847/1538-4357/aa76e6. https://www.osti.gov/servlets/purl/1374390.
@article{osti_1374390,
title = {Core or Cusps: The Central Dark Matter Profile of a Strong Lensing Cluster with a Bright Central Image at Redshift 1 [Core or Cusps: The Central Dark Matter Profile of a Redshift One Strong Lensing Cluster with a Bright Central Image]},
author = {Collett, Thomas E. and Buckley-Geer, Elizabeth and Lin, Huan and Bacon, David and Nichol, Robert C. and Nord, Brian and Morice-Atkinson, Xan and Amara, Adam and Birrer, Simon and Kuropatkin, Nikolay and More, Anupreeta and Papovich, Casey and Romer, Kathy K. and Tessore, Nicolas and Abbott, Tim M. C. and Allam, Sahar and Annis, James and Benoit-Levy, Aurlien and Brooks, David and Burke, David L. and Kind, Matias Carrasco and Castander, Francisco Javier J. and D’Andrea, Chris B. and da Costa, Luiz N. and Desai, Shantanu and Diehl, H. Thomas and Doel, Peter and Eifler, Tim F. and Flaugher, Brenna and Frieman, Josh and Gerdes, David W. and Goldstein, Daniel A. and Gruen, Daniel and Gschwend, Julia and Gutierrez, Gaston and James, David J. and Kuehn, Kyler and Kuhlmann, Steve and Lahav, Ofer and Li, Ting S. and Lima, Marcos and Maia, Marcio A. G. and March, Marisa and Marshall, Jennifer L. and Martini, Paul and Melchior, Peter and Miquel, Ramon and Plazas, Andrs A. and Rykoff, Eli S. and Sanchez, Eusebio and Scarpine, Vic and Schindler, Rafe and Schubnell, Michael and Sevilla-Noarbe, Ignacio and Smith, Mathew and Sobreira, Flavia and Suchyta, Eric and Swanson, Molly E. C. and Tarle, Gregory and Tucker, Douglas L. and Walker, Alistair R.},
abstractNote = {We report on SPT-CLJ2011-5228, a giant system of arcs created by a cluster at z = 1.06. The arc system is notable for the presence of a bright central image. The source is a Lyman break galaxy at zs= 2.39 and the mass enclosed within the Einstein ring of radius 14 arcsec is . We perform a full reconstruction of the light profile of the lensed images to precisely infer the parameters of the mass distribution. The brightness of the central image demands that the central total density profile of the lens be shallow. By fitting the dark matter as a generalized Navarro-Frenk-White profile - with a free parameter for the inner density slope - we find that the break radius is kpc, and that the inner density falls with radius to the power -0.38 ±0.04 at 68% confidence. Such a shallow profile is in strong tension with our understanding of relaxed cold dark matter halos; dark matter-only simulations predict that the inner density should fall as . The tension can be alleviated if this cluster is in fact a merger; a two-halo model can also reconstruct the data, with both clumps (density varying as and ) much more consistent with predictions from dark matter-only simulations. At the resolution of our Dark Energy Survey imaging, we are unable to choose between these two models, but we make predictions for forthcoming Hubble Space Telescope imaging that will decisively distinguish between them.},
doi = {10.3847/1538-4357/aa76e6},
journal = {The Astrophysical Journal (Online)},
number = 2,
volume = 843,
place = {United States},
year = {Mon Jul 10 00:00:00 EDT 2017},
month = {Mon Jul 10 00:00:00 EDT 2017}
}

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Works referencing / citing this record:

Inner dark matter distribution of the Cosmic Horseshoe (J1148+1930) with gravitational lensing and dynamics
journal, October 2019


Properties of Subhalos in the Interacting Dark Matter Scenario
journal, September 2019

  • Moliné, Ángeles; Schewtschenko, Jascha A.; Sánchez-Conde, Miguel A.
  • Galaxies, Vol. 7, Issue 4
  • DOI: 10.3390/galaxies7040080

Properties of subhalos in the interacting dark matter scenario
text, January 2019