A joint SZ-X-ray-optical analysis of the dynamical state of 288 massive galaxy clusters

A. Zenteno; D. Hernandez-Lang; M. Klein; C. Vergara Cervantes; D. L. Hollowood; S. Bhargava; A. Palmese; V. Strazzullo; A. K. Romer; J. J. Mohr; T. Jeltema; A. Saro; C. Lidman; D. Gruen; V. Ojeda; A. Katzenberger; M. Aguena; S. Allam; S. Avila; M. Bayliss; E. Bertin; D. Brooks; E. Buckley-Geer; D. L. Burke; R. Capasso; A. Carnero Rosell; M. Carrasco Kind; J. Carretero; F. J. Castander; M. Costanzi; L. N. da Costa; J. De Vicente; S. Desai; H. T. Diehl; P. Doel; T. F. Eifler; A. E. Evrard; B. Flaugher; B. Floyd; P. Fosalba; J. Frieman; J. Garcia-Bellido; D. W. Gerdes; J. R. Gonzalez; R. A. Gruendl; J. Gschwend; G. Gutierrez; W. G. Hartley; S. R. Hinton; K. Honscheid; D. J. James; K. Kuehn; O. Lahav; M. Lima; M. McDonald; M. A. G. Maia; M. March; P. Melchior; F. Menanteau; R. Miquel; R. L. C. Ogando; F. Paz-Chinchon; A. A. Plazas; A. Roodman; E. S. Rykoff; E. Sanchez; V. Scarpine; M. Schubnell; S. Serrano; I. Sevilla-Noarbe; M. Smith; M. Soares-Santos; E. Suchyta; M. E. C. Swanson; G. Tarle; D. Thomas; T. N. Varga; A. R. Walker; R. D. Wilkinson; DES Collaboration

doi:10.1093/mnras/staa1157

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A joint SZ-X-ray-optical analysis of the dynamical state of 288 massive galaxy clusters

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A joint SZ-X-ray-optical analysis of the dynamical state of 288 massive galaxy clusters

A. Zenteno, D. Hernandez-Lang, M. Klein, C. Vergara Cervantes, D. L. Hollowood, S. Bhargava, A. Palmese, V. Strazzullo, A. K. Romer, J. J. Mohr, …

Monthly notices of the Royal Astronomical Society, Vol.495(1), pp.705-725

2020

DOI: https://doi.org/10.1093/mnras/staa1157

Abstract

Astronomy & Astrophysics

Science & Technology

Physical Sciences

We use imaging from the first three years of the Dark Energy Survey to characterize the dynamical state of 288 galaxy clusters at 0.1 less than or similar to z less than or similar to 0.9 detected in the South Pole Telescope (SPT) Sunyaev-Zeldovich (SZ) effect survey (SPT-SZ). We examine spatial offsets between the position of the brightest cluster galaxy (BCG) and the centre of the gas distribution as traced by the SPT-SZ centroid and by the X-ray centroid/peak position from Chandra and XMM data. We show that the radial distribution of offsets provides no evidence that SPT SZ-selected cluster samples include a higher fraction of mergers than X-ray-selected cluster samples. We use the offsets to classify the dynamical state of the clusters, selecting the 43 most disturbed clusters, with half of those at z greater than or similar to 0.5, a region seldom explored previously. We find that Schechter function fits to the galaxy population in disturbed clusters and relaxed clusters differ at z > 0.55 but not at lower redshifts. Disturbed clusters at z > 0.55 have steeper faint-end slopes and brighter characteristic magnitudes. Within the same redshift range, we find that the BCGs in relaxed clusters tend to be brighter than the BCGs in disturbed samples, while in agreement in the lower redshift bin. Possible explanations includes a higher merger rate, and a more efficient dynamical friction at high redshift. The red-sequence population is less affected by the cluster dynamical state than the general galaxy population.

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Title: A joint SZ-X-ray-optical analysis of the dynamical state of 288 massive galaxy clusters
Creators: A. Zenteno - NSFs Natl Opt Infrared Astron Res Lab, Cerro Tololo Inter Amer Observ, Casilla 603, La Serena, Chile
D. Hernandez-Lang - Cerro Tololo Inter-American Observatory
M. Klein - Max Planck Institute for Extraterrestrial Physics
C. Vergara Cervantes - Univ Sussex, Dept Phys & Astron, Pevensey Bldg, Brighton BN1 9QH, E Sussex, England
D. L. Hollowood - University of California, Santa Cruz
S. Bhargava - University of Sussex
A. Palmese - Fermi National Accelerator Laboratory
V. Strazzullo - University of Trieste
A. K. Romer - University of Sussex
J. J. Mohr - Ludwig Maximilians Univ Munchen, Fac Phys, Scheinerstr 1, D-81679 Munich, Germany
T. Jeltema - Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA
A. Saro - IFPU Inst Fundamental Phys Universe, Via Beirut 2, I-34014 Trieste, Italy
C. Lidman - Australian National University
D. Gruen - Kavli Institute for Particle Astrophysics and Cosmology
V. Ojeda - Univ Serena, Dept Fis Astron, Ave Juan Cisternas 1200, La Serena 1720236, Chile
A. Katzenberger - Ludwig-Maximilians-Universität München
M. Aguena - Laboratório Interinstitucional de e-Astronomia
S. Allam - Fermi National Accelerator Laboratory
S. Avila - Universidad Autónoma de Madrid
M. Bayliss - University of Cincinnati
E. Bertin - Centre National de la Recherche Scientifique
D. Brooks - University College London
E. Buckley-Geer - Fermilab Natl Accelerator Lab, Box 500, Batavia, IL 60510 USA
D. L. Burke - Kavli Institute for Particle Astrophysics and Cosmology
R. Capasso - AlbaNova
A. Carnero Rosell - CIEMAT, Madrid 28040, Spain
M. Carrasco Kind - University of Illinois Urbana-Champaign
J. Carretero - Institute for High Energy Physics
F. J. Castander - Institut d'Estudis Espacials de Catalunya
M. Costanzi - Institute for Fundamental Physics of the Universe
L. N. da Costa - Laboratório Interinstitucional de e-Astronomia
J. De Vicente - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
S. Desai - Indian Institute of Technology Hyderabad
H. T. Diehl - Fermi National Accelerator Laboratory
P. Doel - University College London
T. F. Eifler - University of Arizona
A. E. Evrard - University of Michigan
B. Flaugher - Fermi National Accelerator Laboratory
B. Floyd - University of Missouri–Kansas City
P. Fosalba - Institut d'Estudis Espacials de Catalunya
J. Frieman - Fermi National Accelerator Laboratory
J. Garcia-Bellido - Universidad Autónoma de Madrid
D. W. Gerdes - University of Michigan
J. R. Gonzalez - University of Michigan
R. A. Gruendl - National Center for Supercomputing Applications
J. Gschwend - Laboratório Interinstitucional de e-Astronomia
G. Gutierrez - Fermi National Accelerator Laboratory
W. G. Hartley - ETH Zurich
S. R. Hinton - The University of Queensland
K. Honscheid - The Ohio State University
D. J. James - Center for Astrophysics Harvard & Smithsonian
K. Kuehn - Australian Astronomical Observatory
O. Lahav - University College London
M. Lima - Laboratório Interinstitucional de e-Astronomia
M. McDonald - Massachusetts Institute of Technology
M. A. G. Maia - Laboratório Interinstitucional de e-Astronomia
M. March - Univ Sao Paulo, Inst Fis, Dept Fis Matemat, CP 66318, BR-05314970 S ao Paulo, SP, Brazil
P. Melchior - Princeton University
F. Menanteau - National Center for Supercomputing Applications
R. Miquel - Institució Catalana de Recerca i Estudis Avançats
R. L. C. Ogando - Lab Interinstituc & Astron LIneA, Rua Gal Jos Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil
F. Paz-Chinchon - University of Cambridge
A. A. Plazas - Princeton University
A. Roodman - SLAC National Accelerator Laboratory
E. S. Rykoff - Stanford Univ, Kavli Inst Particle Astrophys Cosmol, Box 2450, Stanford, CA 94305 USA
E. Sanchez - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
V. Scarpine - Fermilab Natl Accelerator Lab, Box 500, Batavia, IL 60510 USA
M. Schubnell - University of Michigan
S. Serrano - Institut d'Estudis Espacials de Catalunya
I. Sevilla-Noarbe - CIEMAT, Madrid 28040, Spain
M. Smith - University of Southampton
M. Soares-Santos - Brandeis University, Martin A. Fisher School of Physics
E. Suchyta - Oak Ridge National Laboratory
M. E. C. Swanson - National Center for Supercomputing Applications
G. Tarle - University of Michigan
D. Thomas - University of Portsmouth
T. N. Varga - Ludwig-Maximilians-Universität München
A. R. Walker - Cerro Tololo Inter-American Observatory
R. D. Wilkinson - University of Sussex
DES Collaboration
Publication Details: Monthly notices of the Royal Astronomical Society, Vol.495(1), pp.705-725
Publisher: Oxford Univ Press
Number of pages: 21
Grant note: University of Edinburgh University of Chicago U.S. Department of Energy; United States Department of Energy (DOE) Kavli Institute of Cosmological Physics at the University of Chicago Lawrence Berkeley National Laboratory; United States Department of Energy (DOE) Ministerio da Ciencia, Tecnologia e Inovacao; Spanish Government Ministry of Science and Education of Spain; Spanish Government Institut de Ciencies de l'Espai (IEEC/CSIC) Ohio State University DE-SC0010107 / Department of Energy; United States Department of Energy (DOE)
Identifiers: 9924552851801921
Academic Unit: Martin A. Fisher School of Physics
Language: English
Resource Type: Journal article

A joint SZ-X-ray-optical analysis of the dynamical state of 288 massive galaxy clusters

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