Dark Energy Survey year 1 results: Galaxy clustering for combined probes
J. Elvin-PooleJodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester, M13 9PL, United KingdomM. CrocceInstitute of Space Sciences, IEEC-CSIC, Campus UAB, Carrer de Can Magrans, s/n, 08193 Barcelona, SpainA.J. RossCenter for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, Ohio 43210, USAT. GiannantonioInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, United KingdomEduardo RozoDepartment of Physics, University of Arizona, Tucson, Arizona 85721, USAE. S. RykoffKavli Institute for Particle Astrophysics & Cosmology, P. O. Box 2450, Stanford University, Stanford, California 94305, USAS. ÀvilaCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, SpainNilanjan BanikDepartment of Physics, University of Florida, Gainesville, Florida 32611, USAJ. BlazekCenter for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, Ohio 43210, USAS. L. BridleJodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester, M13 9PL, United KingdomR. CawthonKavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USAA. Drlica-WagnerFermi National Accelerator Laboratory, P. O. Box 500, Batavia, Illinois 60510, USAO. FriedrichMax Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, 85748 Garching, GermanyNickolas KokronDepartamento de Física Matemática, Instituto de Física, Universidade de São Paulo, CP 66318, São Paulo, SP, 05314-970, BrazilE. KrauseKavli Institute for Particle Astrophysics & Cosmology, P. O. Box 2450, Stanford University, Stanford, California 94305, USAN. MacCrannCenter for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, Ohio 43210, USAJ. PratInstitut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra (Barcelona) SpainC. SánchezInstitut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra (Barcelona) SpainL. F. SeccoDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USAI. Sevilla-NoarbeCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, SpainM. A. TroxelCenter for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, Ohio 43210, USAT. M. C. AbbottCerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, ChileF. B. AbdallaDepartment of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, United KingdomS. AllamFermi National Accelerator Laboratory, P. O. Box 500, Batavia, Illinois 60510, USAJ. AnnisFermi National Accelerator Laboratory, P. O. Box 500, Batavia, Illinois 60510, USAJ. AsoreyARC Centre of Excellence for All-sky Astrophysics (CAASTRO)K. BechtolLSST, 933 North Cherry Avenue, Tucson, Arizona 85721, USAM. R. BeckerDepartment of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, California 94305, USAA. Benoit-LévyCNRS, UMR 7095, Institut d’Astrophysique de Paris, F-75014, Paris, FranceG. M. BernsteinDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USAE. BertinCNRS, UMR 7095, Institut d’Astrophysique de Paris, F-75014, Paris, FranceDavid BrooksDepartment of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, United KingdomE. Buckley‐GeerFermi National Accelerator Laboratory, P. O. Box 500, Batavia, Illinois 60510, USAD. L. BurkeKavli Institute for Particle Astrophysics & Cosmology, P. O. Box 2450, Stanford University, Stanford, California 94305, USAA. Carnero RosellLaboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, BrazilD. CarolloINAF - Osservatorio Astrofisico di Torino, Pino Torinese, ItalyM. Carrasco KindDepartment of Astronomy, University of Illinois, 1002 W. Green Street, Urbana, Illinois 61801, USAJ. CarreteroInstitut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra (Barcelona) SpainF. J. CastanderInstitute of Space Sciences, IEEC-CSIC, Campus UAB, Carrer de Can Magrans, s/n, 08193 Barcelona, SpainCarlos E. CunhaKavli Institute for Particle Astrophysics & Cosmology, P. O. Box 2450, Stanford University, Stanford, California 94305, USAC. B. D’AndreaDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USAL. N. da CostaLaboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, BrazilT. M. DavisARC Centre of Excellence for All-sky Astrophysics (CAASTRO)C. DavisKavli Institute for Particle Astrophysics & Cosmology, P. O. Box 2450, Stanford University, Stanford, California 94305, USAS. DesaiDepartment of Physics, IIT Hyderabad, Kandi, Telangana 502285, IndiaH. T. DiehlFermi National Accelerator Laboratory, P. O. Box 500, Batavia, Illinois 60510, USAJ. P. DietrichExcellence Cluster Universe, Boltzmannstr. 2, 85748 Garching, GermanyScott DodelsonFermi National Accelerator Laboratory, P. O. Box 500, Batavia, Illinois 60510, USAP. DoelDepartment of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, United KingdomT. F. EiflerDepartment of Physics, California Institute of Technology, Pasadena, California 91125, USAA. E. EvrardDepartment of Astronomy, University of Michigan, Ann Arbor, Michigan 48109, USAE. FernándezInstitut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra (Barcelona) SpainB. FlaugherFermi National Accelerator Laboratory, P. O. Box 500, Batavia, Illinois 60510, USAP. FosalbaInstitute of Space Sciences, IEEC-CSIC, Campus UAB, Carrer de Can Magrans, s/n, 08193 Barcelona, SpainJ. García-BellidoInstituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, 28049 Madrid, SpainE. GaztañagaInstitute of Space Sciences, IEEC-CSIC, Campus UAB, Carrer de Can Magrans, s/n, 08193 Barcelona, SpainD. W. GerdesDepartment of Astronomy, University of Michigan, Ann Arbor, Michigan 48109, USAKarl GlazebrookCentre for Astrophysics & Supercomputing, Swinburne University of Technology, Victoria 3122, AustraliaD. GruenKavli Institute for Particle Astrophysics & Cosmology, P. O. Box 2450, Stanford University, Stanford, California 94305, USAR. A. GruendlDepartment of Astronomy, University of Illinois, 1002 W. Green Street, Urbana, Illinois 61801, USAJ. GschwendLaboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, BrazilG. GutiérrezFermi National Accelerator Laboratory, P. O. Box 500, Batavia, Illinois 60510, USAW. G. HartleyDepartment of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, United KingdomS. R. HintonSchool of Mathematics and Physics, University of Queensland, Brisbane, QLD 4072, AustraliaK. HonscheidCenter for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, Ohio 43210, USAJ. K. HoormannSchool of Mathematics and Physics, University of Queensland, Brisbane, QLD 4072, AustraliaBhuvnesh JainDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USAD. J. JamesAstronomy Department, University of Washington, Box 351580, Seattle, Washington 98195, USAMike JarvisDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USAT. JeltemaM. W. G. JohnsonNational Center for Supercomputing Applications, 1205 West Clark St., Urbana, Illinois 61801, USAM. D. JohnsonNational Center for Supercomputing Applications, 1205 West Clark St., Urbana, Illinois 61801, USAA. L. KingSchool of Mathematics and Physics, University of Queensland, Brisbane, QLD 4072, AustraliaK. KuehnAustralian Astronomical Observatory, North Ryde, NSW 2113, AustraliaS. E. KuhlmannArgonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, USAN. KuropatkinFermi National Accelerator Laboratory, P. O. Box 500, Batavia, Illinois 60510, USAO. LahavDepartment of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, United KingdomGeraint F. LewisARC Centre of Excellence for All-sky Astrophysics (CAASTRO)T. S. LiFermi National Accelerator Laboratory, P. O. Box 500, Batavia, Illinois 60510, USAC. LidmanARC Centre of Excellence for All-sky Astrophysics (CAASTRO)M. LimaDepartamento de Física Matemática, Instituto de Física, Universidade de São Paulo, CP 66318, São Paulo, SP, 05314-970, BrazilH. LinFermi National Accelerator Laboratory, P. O. Box 500, Batavia, Illinois 60510, USAE. MacaulaySchool of Mathematics and Physics, University of Queensland, Brisbane, QLD 4072, AustraliaM. MarchDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 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, Texas 77843, USAPaul MartiniCenter for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, Ohio 43210, USAP. MelchiorDepartment of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, New Jersey 08544, USAF. MenanteauDepartment of Astronomy, University of Illinois, 1002 W. Green Street, Urbana, Illinois 61801, USAR. MiquelInstitució Catalana de Recerca i Estudis Avançats, E-08010 Barcelona, SpainJ. J. MohrExcellence Cluster Universe, Boltzmannstr. 2, 85748 Garching, GermanyA. MöllerARC Centre of Excellence for All-sky Astrophysics (CAASTRO)Robert C. NicholInstitute of Cosmology & Gravitation, University of Portsmouth, Portsmouth, PO1 3FX, United KingdomB. NordFermi National Accelerator Laboratory, P. O. Box 500, Batavia, Illinois 60510, USAC. R. O’NeillARC Centre of Excellence for All-sky Astrophysics (CAASTRO)Will J. PercivalInstitute of Cosmology & Gravitation, University of Portsmouth, Portsmouth, PO1 3FX, United KingdomD. PetravickNational Center for Supercomputing Applications, 1205 West Clark St., Urbana, Illinois 61801, USAA. A. PlazasJet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, California 91109, USAA. K. RomerDepartment of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton, BN1 9QH, United KingdomM. ŠakoDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
2018en
ABI
Аннотация
We measure the clustering of DES year 1 galaxies that are intended to be combined with weak lensing samples in order to produce precise cosmological constraints from the joint analysis of large-scale structure and lensing correlations. Two-point correlation functions are measured for a sample of 6.6 10 5 luminous red galaxies selected using the REDMAGIC algorithm over an area of 1321 square degrees, in the redshift range 0.15 < z < 0.9, split into five tomographic redshift bins. The sample has a mean redshift uncertainty of z =1 z 0.017. We quantify and correct spurious correlations induced by spatially variable survey properties, testing their impact on the clustering measurements and covariance. We demonstrate the sample's robustness by testing for stellar contamination, for potential biases that could arise from the systematic correction, and for the consistency between the two-point auto-and cross-correlation functions. We show that the corrections we apply have a significant impact on the resultant measurement of cosmological parameters, but that the results are robust against arbitrary choices in the correction method. We find the linear galaxy bias in each redshift bin in a fiducial cosmology to be b 8 =0.81j z0.24 1.40 AE 0.07, b 8 =0.81j z0.38 1.60 AE 0.05, b 8 =0.81j z0.53 1.60 AE 0.04 for galaxies with luminosities L=L > 0.5, b 8 =0.81j z0.68 1.93 AE 0.04 for L=L > 1 and b 8 =0.81j z0.83 1.98 AE 0.07 for L=L > 1.5, broadly consistent with expectations for the redshift and luminosity dependence of the bias of red galaxies. We show these measurements to be consistent with the linear bias obtained from tangential shear measurements.
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