Constraints on the richness–mass relation and the optical-SZE positional offset distribution for SZE-selected clusters
A. SaroExcellence Cluster Universe, Boltzmannstr. 2, D-85748 Garching, GermanyS. BocquetExcellence Cluster Universe, Boltzmannstr. 2, D-85748 Garching, GermanyEduardo RozoDepartment of Physics, University of Arizona, 1118 E 4th St, Tucson, AZ 85721, USAB. A. BensonFermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USAJ. J. MohrDepartment of Physics, Ludwig-Maximilians-Universitaet, Scheinerstr. 1, D-81679 Muenchen, GermanyE. S. RykoffSLAC National Accelerator Laboratory, Menlo Park, CA 94025, USAM. Soares-SantosFermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USAL. E. BleemArgonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439, USAScott DodelsonDepartment of Astronomy and Astrophysics,University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USAP. MelchiorCenter for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USAF. SobreiraLaboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, BrazilV. UpadhyayCERN, CH-1211 Geneva 23, SwitzerlandJ. WellerMax Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, GermanyT. M. C. AbbottCerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, ChileF. B. AbdallaDepartment of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UKS. AllamFermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USAR. ArmstrongDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USAM. BanerjiInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKA. H. BauerFacultat de Ciències, Institut de Ciències de l'Espai, IEEC-CSIC, Campus UAB, Torre C5 par-2, E-08193 Bellaterra, Barcelona, SpainMatthew BaylissHarvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAA. Benoit-LévyDepartment of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UKG. M. BernsteinDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USAE. BertinInstitut d'Astrophysique de Paris, Univ. Pierre et Marie Curie and CNRS UMR7095, F-75014 Paris, FranceM. BrodwinDepartment of Physics and Astronomy, University of Missouri, 5110 Rockhill Road, Kansas City, MO 64110, USADavid BrooksDepartment of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UKE. Buckley‐GeerFermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USAD. L. BurkeSLAC National Accelerator Laboratory, Menlo Park, CA 94025, USAJ. E. CarlstromDepartment of Physics and Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USAR. CapassoExcellence Cluster Universe, Boltzmannstr. 2, D-85748 Garching, GermanyD. CapozziInstitute of Cosmology and Gravitation, University of Portsmouth, Portsmouth PO1 3FX, UKA. Carnero RosellLaboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, BrazilM. Carrasco KindNational Center for Supercomputing Applications, 1205 West Clark St, Urbana, IL 61801, USAI-Non ChiuExcellence Cluster Universe, Boltzmannstr. 2, D-85748 Garching, GermanyR. CovarrubiasNational Center for Supercomputing Applications, 1205 West Clark St, Urbana, IL 61801, USAT. M. CrawfordDepartment of Astronomy and Astrophysics,University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USAM. CrocceFacultat de Ciències, Institut de Ciències de l'Espai, IEEC-CSIC, Campus UAB, Torre C5 par-2, E-08193 Bellaterra, Barcelona, SpainC. B. D’AndreaInstitute of Cosmology and Gravitation, University of Portsmouth, Portsmouth PO1 3FX, UKL. N. da CostaObservatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, BrazilD. L. DePoyGeorge 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, USAS. DesaiDepartment of Physics, Ludwig-Maximilians-Universitaet, Scheinerstr. 1, D-81679 Muenchen, GermanyT. de HaanDepartment of Physics, McGill University, 3600 Rue University, Montreal, QC H3A 2T8, CanadaH. T. DiehlFermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USAJ. P. DietrichExcellence Cluster Universe, Boltzmannstr. 2, D-85748 Garching, GermanyP. DoelDepartment of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UKC. E. CunhaKavli Institute for Particle Astrophysics and Cosmology, P. O. Box 2450, Stanford University, Stanford, CA 94305, USAT. F. EiflerJet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USAA. E. EvrardDepartment of Astronomy, University of Michigan, Ann Arbor, MI 48109, USAA. Fausti NetoLaboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, BrazilE. FernándezInstitut de Física d'Altes Energies, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, SpainB. FlaugherFermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USAP. FosalbaFacultat de Ciències, Institut de Ciències de l'Espai, IEEC-CSIC, Campus UAB, Torre C5 par-2, E-08193 Bellaterra, Barcelona, SpainJ. FriemanFermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USAC. GangkofnerDepartment of Physics, Ludwig-Maximilians-Universitaet, Scheinerstr. 1, D-81679 Muenchen, GermanyE. GaztañagaFacultat de Ciències, Institut de Ciències de l'Espai, IEEC-CSIC, Campus UAB, Torre C5 par-2, E-08193 Bellaterra, Barcelona, SpainD. W. GerdesDepartment of Physics, University of Michigan, Ann Arbor, MI 48109, USAD. GruenMax Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, GermanyR. A. GruendlDepartment of Astronomy, University of Illinois,1002 W. Green Street, Urbana, IL 61801, USAN. GuptaDepartment of Physics, Ludwig-Maximilians-Universitaet, Scheinerstr. 1, D-81679 Muenchen, GermanyC. HennigDepartment of Physics, Ludwig-Maximilians-Universitaet, Scheinerstr. 1, D-81679 Muenchen, GermanyW. L. HolzapfelDepartment of Physics, University of California, Berkeley, CA 94720, USAK. HonscheidDepartment of Physics, The Ohio State University, Columbus, OH 43210, USABhuvnesh JainDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USAD. J. JamesCerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, ChileK. KuehnAustralian Astronomical Observatory, North Ryde, NSW 2113, AustraliaN. KuropatkinFermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USAO. LahavDepartment of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UKT. S. LiGeorge 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, USAH. LinFermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USAM. A. G. MaiaObservatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, BrazilM. MarchDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USAJ. L. MarshallGeorge 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, USAPaul MartiniDepartment of Astronomy, The Ohio State University, Columbus, OH 43210, USAM. McDonaldKavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USAC. J. MillerDepartment of Physics, University of Michigan, Ann Arbor, MI 48109, USAR. MiquelInstitut de Física d'Altes Energies, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, SpainB. NordFermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USAR. L. C. OgandoLaboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, BrazilA. A. PlazasBrookhaven National Laboratory, Bldg 510, Upton, NY 11973, USAC. L. ReichardtSchool of Physics, University of Melbourne, Parkville, VIC 3010, AustraliaA. K. RomerDepartment of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton BN1 9QH, UKA. RoodmanKavli Institute for Particle Astrophysics and Cosmology, P. O. Box 2450, Stanford University, Stanford, CA 94305, USAM. ŠakoDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USAE. SánchezCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), E-28040 Madrid, SpainM. SchubnellDepartment of Physics, University of Michigan, Ann Arbor, MI 48109, USAI. Sevilla-NoarbeCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), E-28040 Madrid, SpainR. C. SmithCerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, ChileB. StalderHarvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAA. A. StarkHarvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAV. StrazzulloExcellence Cluster Universe, Boltzmannstr. 2, D-85748 Garching, GermanyE. SuchytaDepartment of Physics, The Ohio State University, Columbus, OH 43210, USAM. E. C. SwansonNational Center for Supercomputing Applications, 1205 West Clark St, Urbana, IL 61801, USAG. TarléDepartment of Physics, University of Michigan, Ann Arbor, MI 48109, USAJ. ThalerDepartment of Physics, University of Illinois, 1110 W. Green St, Urbana, IL 61801, USAD. ThomasInstitute of Cosmology and Gravitation, University of Portsmouth, Portsmouth PO1 3FX, UKD. L. TuckerFermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USAV. VikramArgonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439, USAAnja von der LindenDepartment of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USAA. R. WalkerCerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, ChileR.H. WechslerSLAC National Accelerator Laboratory, Menlo Park, CA 94025, USAW. C. WesterFermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA
2015en
ABI
Аннотация
We cross-match galaxy cluster candidates selected via their Sunyaev-Zel'dovich effect (SZE) signatures in 129.1 deg2 of the South Pole Telescope 2500d SPT-SZ survey with optically identified clusters selected from the Dark Energy Survey science verification data. We identify 25 clusters between 0.1 ≲ z ≲ 0.8 in the union of the SPT-SZ and redMaPPer (RM) samples. RM is an optical cluster finding algorithm that also returns a richness estimate for each cluster. We model the richness lambda-mass relation with the following function <ln lambda|M500> ∝ Blambdaln M500 + Clambdaln E(z) and use SPT-SZ cluster masses and RM richnesses lambda to constrain the parameters. We find B_lambda = 1.14^{+0.21}_{-0.18} and C_lambda =0.73^{+0.77}_{-0.75}. The associated scatter in mass at fixed richness is sigma _{ln M|lambda } = 0.18^{+0.08}_{-0.05} at a characteristic richness lambda = 70. We demonstrate that our model provides an adequate description of the matched sample, showing that the fraction of SPT-SZ-selected clusters with RM counterparts is consistent with expectations and that the fraction of RM-selected clusters with SPT-SZ counterparts is in mild tension with expectation. We model the optical-SZE cluster positional offset distribution with the sum of two Gaussians, showing that it is consistent with a dominant, centrally peaked population and a subdominant population characterized by larger offsets. We also cross-match the RM catalogue with SPT-SZ candidates below the official catalogue threshold significance xi = 4.5, using the RM catalogue to provide optical confirmation and redshifts for 15 additional clusters with xi ∈ [4, 4.5].
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