Baryon content in a sample of 91 galaxy clusters selected by the South Pole Telescope at 0.2 < 1.25
- Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), 11F of AS/NTU Astronomy-Mathematics Building, No. 1, Section 4, Roosevelt Rd, Taipei 10617, Taiwan; Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr 1, D-81679 Munich, Germany; Excellence Cluster Universe, Boltzmannstr 2, D-85748 Garching, Germany
- Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr 1, D-81679 Munich, Germany; Excellence Cluster Universe, Boltzmannstr 2, D-85748 Garching, Germany; Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, Germany
- Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
- Argonne National Laboratory, High-Energy Physics Division, 9700 S. Cass Avenue, Argonne, IL 60439, USA
- Department of Physics, IIT Hyderabad, Kandi, Telangana 502285, India
- Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr 1, D-81679 Munich, Germany; Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, Germany
- Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr 1, D-81679 Munich, Germany
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
- Physics Department, University of California, Davis, CA 95616, USA
- Fermi National Accelerator Laboratory, Batavia, IL 60510-0500, USA; Department of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA; Kavli Institute for Cosmological Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA
- Department of Physics and Astronomy, University of Missouri, 5110 Rockhill Road, Kansas City, MO 64110, USA
- Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile
- Department of Physics and Electronics, Rhodes University, PO Box 94, Grahamstown 6140, South Africa; Department of Physics & Astronomy, University College London, Gower Street, London WC1E 6BT, UK
- Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA
- Department of Physics & Astronomy, University College London, Gower Street, London WC1E 6BT, UK; Institut d’Astrophysique de Paris, Sorbonne Universités, UPMC Univ Paris 06, UMR 7095, F-75014 Paris, France; Institut d’Astrophysique de Paris, CNRS, UMR 7095, F-75014, Paris, France
- Institut d’Astrophysique de Paris, Sorbonne Universités, UPMC Univ Paris 06, UMR 7095, F-75014 Paris, France; Institut d’Astrophysique de Paris, CNRS, UMR 7095, F-75014, Paris, France
- Argonne National Laboratory, High-Energy Physics Division, 9700 S. Cass Avenue, Argonne, IL 60439, USA; Kavli Institute for Cosmological Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA
- Department of Physics & Astronomy, University College London, Gower Street, London WC1E 6BT, UK
- Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr 1, D-81679 Munich, Germany; Excellence Cluster Universe, Boltzmannstr 2, D-85748 Garching, Germany
- Department of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA; Kavli Institute for Cosmological Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA
- Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, Brazil; Laboratório Interinstitucional de e-Astronomia – LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, Brazil
- Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona), Spain
- Institute of Space Sciences, IEEC-CSIC, Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, Spain
- Kavli Institute for Particle Astrophysics & Cosmology, P. O. Box 2450, Stanford University, Stanford, CA 94305, USA
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Physics, California Institute of Technology, Pasadena, CA 91125, USA; Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA
- Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA; Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
- Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, Spain
- Department of Astronomy and Astrophysics, The Pennsylvania State University, 201 Old Main, University Park, PA 16802, USA
- Department of Astronomy, University of Florida, Gainesville, FL 32611, USA
- Kavli Institute for Particle Astrophysics & Cosmology, P. O. Box 2450, Stanford University, Stanford, CA 94305, USA; SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
- Department of Astronomy, University of Illinois, 1002 W. Green Street, Urbana, IL 61801, USA; National Center for Supercomputing Applications, 1205 West Clark St., Urbana, IL 61801, USA
- Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr 1, D-81679 Munich, Germany; Excellence Cluster Universe, Boltzmannstr 2, D-85748 Garching, Germany; Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians Universität München, Scheinerstr 1, D-81679München, Germany
- Department of Physics, University of Montreal, Montreal, QC H3C 3J7, Canada
- Department of Physics, The Ohio State University, Columbus, OH 43210, USA; Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USA
- Astronomy Department, University of Washington, Box 351580, Seattle, WA 98195, USA
- Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA
- Australian Astronomical Observatory, North Ryde, NSW 2113, Australia
- Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439, USA
- 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
- 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
- Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA
- 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
- Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA
- Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr 1, D-81679 Munich, Germany; Excellence Cluster Universe, Boltzmannstr 2, D-85748 Garching, Germany; Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Center for Astrophysics and Space Astronomy, Department of Astrophysical and Planetary Science, University of Colorado, Boulder, CO 80309, USA; NASA Ames Research Center, Moffett Field, CA 94035, USA
- School of Physics, University of Melbourne, Parkville, VIC 3010, Australia
- Department of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton BN1 9QH, UK
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
- Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Astronomy, University of Michigan, 1085 S. University Ave., Ann Arbor, MI, USA
- School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK
- Laboratório Interinstitucional de e-Astronomia – LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, Brazil; Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, 13083-859 Campinas, SP, Brazil
- LSST, 950 North Cherry Avenue, Tucson, AZ 85719, USA
- Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- National Center for Supercomputing Applications, 1205 West Clark St., Urbana, IL 61801, USA
- Excellence Cluster Universe, Boltzmannstr 2, D-85748 Garching, Germany; Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, Germany; Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians Universität München, Scheinerstr 1, D-81679München, Germany
We estimate total mass (M-500), intracluster medium (ICM) mass (M-ICM), and stellar mass (M-star) in a Sunyaev-Zel'dovich effect (SZE) selected sample of 91 galaxy clusters with masses M-500 greater than or similar to 2.5 x 10(14) M-circle dot and redshift 0.2 < z < 1.25 from the 2500 deg(2) South Pole Telescope SPT-SZ survey. The total masses M-500 are estimated from the SZE observable, the ICM masses M-ICM are obtained from the analysis of Chandra X-ray observations, and the stellar masses M-star are derived by fitting spectral energy distribution templates to Dark Energy Survey griz optical photometry and WISE or Spitzer near-infrared photometry. We study trends in the stellar mass, the ICM mass, the total baryonic mass, and the cold baryonic fraction with cluster halo mass and redshift. We find significant departures from self-similarity in the mass scaling for all quantities, while the redshift trends are all statistically consistent with zero, indicating that the baryon content of clusters at fixed mass has changed remarkably little over the past approximate to 9 Gyr. We compare our results to the mean baryon fraction (and the stellar mass fraction) in the field, finding that these values lie above (below) those in cluster virial regions in all but the most massive clusters at low redshift. Using a simple model of the matter assembly of clusters from infalling groups with lower masses and from infalling material from the low-density environment or field surrounding the parent haloes, we show that the measured mass trends without strong redshift trends in the stellar mass scaling relation could be explained by a mass and redshift dependent fractional contribution from field material. Similar analyses of the ICM and baryon mass scaling relations provide evidence for the so-called 'missing baryons' outside cluster virial regions.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE Office of Science - Office of High Energy Physics; German Research Foundation (DFG); United Kingdom Science and Technology Facilities Council; University of Illinois-Urbana-Champaign - National Center for Supercomputing Applications; University of Chicago - Kavli Institute for Cosmological Physics; Brazilian Ministry of Science, Technology and Innovation (MCTI) - Financiadora de Estudos e Projetos (FINEP); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1496036
- Journal Information:
- Monthly Notices of the Royal Astronomical Society, Vol. 478, Issue 3; ISSN 0035-8711
- Publisher:
- Royal Astronomical Society
- Country of Publication:
- United States
- Language:
- English
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