Dark Energy Surveyed Year 1 results: calibration of cluster mis-centring in the redMaPPer catalogues

Journal Article · Thu May 16 00:00:00 EDT 2019 · Monthly Notices of the Royal Astronomical Society

DOI:https://doi.org/10.1093/mnras/stz1361· OSTI ID:1525918

Zhang, Y.  ^[1]; Jeltema, T. ^[2]; Hollowood, D. L. ^[2]; Everett, S. ^[2]; Rozo, E. ^[3]; Farahi, A. ^[4]; Bermeo, A. ^[5]; Bhargava, S. ^[5]; Giles, P. ^[5]; Romer, A. K. ^[5]; Wilkinson, R. ^[5]; Rykoff, E. S. ^[6]; Mantz, A. ^[7]; Diehl, H. T. ^[1]; Evrard, A. E. ^[8]; Stern, C. ^[9]; Gruen, D. ^[10]; von der Linden, A. ^[11]; Splettstoesser, M. ^[5]; Chen, X. ^[12] ; Costanzi, M. ^[13]; Allen, S. ^[14]; Collins, C. ^[15]; Hilton, M. ^[16]; Klein, M. ^[17]; Mann, R. G. ^[18]; Manolopoulou, M. ^[19]; Morris, G. ^[20]; Mayers, J. ^[5]; Sahlen, M. ^[21]; Stott, J. ^[22]; Vergara Cervantes, C. ^[5]; Viana, P. T. P. ^[23]; Wechsler, R. H. ^[20]; Allam, S. ^[1]; Avila, S. ^[24]; Bechtol, K. ^[25]; Bertin, E. ^[26]; Brooks, D. ^[27]; Burke, D. L. ^[6]; Carnero Rosell, A. ^[28]; Carrasco Kind, M. ^[29]; Carretero, J. ^[30]; Castander, F. J. ^[31]; da Costa, L. N. ^[32]; De Vicente, J. ^[33]; Desai, S. ^[34]; Dietrich, J. P. ^[35]; Doel, P. ^[27]; Flaugher, B. ^[1]; Fosalba, P. ^[31]; Frieman, J. ^[36]; García-Bellido, J. ^[37]; Gaztanaga, E. ^[31]; Gruendl, R. A. ^[29]; Gschwend, J. ^[32]; Gutierrez, G. ^[1]; Hartley, W. G. ^[38]; Honscheid, K. ^[39]; Hoyle, B. ^[40]; Krause, E. ^[41]; Kuehn, K. ^[42]; Kuropatkin, N. ^[1]; Lima, M. ^[43]; Maia, M. A. G. ^[32]; Marshall, J. L. ^[44]; Melchior, P. ^[45]; Menanteau, F. ^[29]; Miller, C. J. ^[8]; Miquel, R. ^[46]; Ogando, R. L. C. ^[32]; Plazas, A. A. ^[45]; Sanchez, E. ^[33]; Scarpine, V. ^[1]; Schindler, R. ^[20]; Serrano, S. ^[31]; Sevilla-Noarbe, I. ^[33]; Smith, M. ^[47]; Soares-Santos, M. ^[48]; Suchyta, E. ^[49]; Swanson, M. E. C. ^[50]; Tarle, G. ^[12]; Thomas, D. ^[24]; Tucker, D. L. ^[1]; Vikram, V. ^[51]; Wester, W. ^[1]

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1. Fermi National Accelerator Laboratory, PO Box 500, Batavia, IL 60510, USA
2. Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA
3. Department of Physics, University of Arizona, Tucson, AZ 85721, USA
4. Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15312, USA, Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
5. Department of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton BN1 9QH, UK
6. Kavli Institute for Particle Astrophysics & Cosmology, PO Box 2450, Stanford University, Stanford, CA 94305, USA, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
7. Kavli Institute for Particle Astrophysics & Cosmology, PO Box 2450, Stanford University, Stanford, CA 94305, USA
8. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA, Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA
9. Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr 1, D-81679 Munich, Germany
10. Kavli Institute for Particle Astrophysics & 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
11. Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794, USA
12. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
13. Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians Universität München, Scheinerstr 1, D-81679 München, Germany
14. Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA
15. Astrophysics Research Institute, Liverpool John Moores University, IC2, Liverpool Science Park, 146 Brownlow Hill, Liverpool L3 5RF, UK
16. Astrophysics & Cosmology Research Unit, School of Mathematics, Statistics & Computer Science, University of KwaZulu-Natal, Westville Campus, Durban 4041, South Africa
17. Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr 1, D-81679 Munich, Germany, Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, Germany
18. Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3NJ, UK
19. Institute for Astronomy, University of Edinburgh, Edinburgh EH9 3HJ, UK
20. SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
21. Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20 Uppsala, Sweden
22. Sub-department of Astrophysics, Department of Physics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK, Department of Physics, Lancaster University, Lancaster LA1 4 YB, UK
23. Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, P-4150-762 Porto, Portugal, Departamento de Fisica e Astronomia, Faculdade de Ciencias, Universidade do Porto, Rua do Campo Alegre, 687, P-4169-007 Porto, Portugal
24. Institute of Cosmology and Gravitation, University of Portsmouth, Portsmouth PO1 3FX, UK
25. LSST, 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
26. CNRS, UMR 7095, Institut d’Astrophysique de Paris, F-75014 Paris, France, Sorbonne Universités, UPMC Univ Paris 06, UMR 7095, Institut d’Astrophysique de Paris, F-75014 Paris, France
27. Department of Physics & Astronomy, University College London, Gower Street, London WC1E 6BT, UK
28. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), 28040, Madrid, Spain, Laboratório Interinstitucional de e-Astronomia – LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, Brazil
29. 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
30. Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona), Spain
31. 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
32. Laboratório Interinstitucional de e-Astronomia – LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, Brazil, Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, Brazil
33. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), 28040, Madrid, Spain
34. Department of Physics, IIT Hyderabad, Kandi, Telangana 502285, India
35. Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr 1, D-81679 Munich, Germany, Excellence Cluster Universe, Boltzmannstr 2, D-85748 Garching, Germany
36. Fermi National Accelerator Laboratory, PO Box 500, Batavia, IL 60510, USA, Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
37. Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, Spain
38. Department of Physics & Astronomy, University College London, Gower Street, London WC1E 6BT, UK, Department of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 16, CH-8093 Zurich, Switzerland
39. 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
40. Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians Universität München, Scheinerstr 1, D-81679 München, Germany, Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, Germany
41. Department of Astronomy/Steward Observatory, 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA
42. Australian Astronomical Optics, Macquarie University, North Ryde, NSW 2113, Australia
43. Laboratório Interinstitucional de e-Astronomia – LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, Brazil, Departamento de Física Matemática, Instituto de Física, Universidade de São Paulo, CP 66318, São Paulo, SP 05314-970, Brazil
44. George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, and Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USA
45. Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA
46. 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
47. School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK
48. Brandeis University, Physics Department, 415 South Street, Waltham, MA 02453, USA
49. Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
50. National Center for Supercomputing Applications, 1205 West Clark St., Urbana, IL 61801, USA
51. Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439, USA

The centre determination of a galaxy cluster from an optical cluster finding algorithm can be offset from theoretical prescriptions or N-body definitions of its host halo centre. These offsets impact the recovered cluster statistics, affecting both richness measurements and the weak lensing shear profile around the clusters. This paper models the centring performance of the redMaPPer cluster finding algorithm using archival X-ray observations of redMaPPer-selected clusters. Assuming the X-ray emission peaks as the fiducial halo centres, and through analysing their offsets to the redMaPPer centres, we find that ~75 ± 8 per cent of the redMaPPer clusters are well centred and the mis-centred offset follows a Gamma distribution in normalized, projected distance. These mis-centring offsets cause a systematic underestimation of cluster richness relative to the well-centred clusters, for which we propose a descriptive model. Our results enable the DES Y1 cluster cosmology analysis by characterizing the necessary corrections to both the weak lensing and richness abundance functions of the DES Y1 redMaPPer cluster catalogue.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
• Contributing Organization: DES; DES Collaboration
• Grant/Contract Number: AC02-76SF00515; GO8-19101A; AC02-07CH11359; AC05-00OR22725
• OSTI ID: 1525918
• Alternate ID(s): OSTI ID: 1529355; OSTI ID: 1531213
• Report Number(s): arXiv:1901.07119; FERMILAB-PUB-19-013-AE-PPD
• Journal Information: Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Vol. 487 Journal Issue: 2; ISSN 0035-8711
• Publisher: Oxford University Press
• Country of Publication: United Kingdom
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
galaxies: clusters: general
dark energy
X-rays: galaxies: clusters