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Joint analysis of galaxy-galaxy lensing and galaxy clustering: Methodology and forecasts for Dark Energy Survey

Y. Park1,2,*, E. Krause3,†, S. Dodelson4,1, B. Jain5, A. Amara6, M. R. Becker7,3, S. L. Bridle8, J. Clampitt5, M. Crocce9 et al. (The DES Collaboration)

M. Crocce9, P. Fosalba9, E. Gaztanaga9, K. Honscheid10,11, E. Rozo12, F. Sobreira4,13, C. Sánchez14, R. H. Wechsler7,3,15, T. Abbott16, F. B. Abdalla17,18, S. Allam4, A. Benoit-Lévy17, E. Bertin19,20, D. Brooks17, E. Buckley-Geer4, D. L. Burke3,15, A. Carnero Rosell21,22, M. Carrasco Kind23,24, J. Carretero9,14, F. J. Castander9, L. N. da Costa21,22, D. L. DePoy25, S. Desai26,27, J. P. Dietrich27,28, P. Doel17, T. F. Eifler5,29, A. Fausti Neto21, E. Fernandez14, D. A. Finley4, B. Flaugher4, D. W. Gerdes30, D. Gruen31,28, R. A. Gruendl23,24, G. Gutierrez4, D. J. James16, S. Kent4, K. Kuehn32, N. Kuropatkin4, M. Lima33,13, M. A. G. Maia21,22, J. L. Marshall25, P. Melchior10,11, C. J. Miller34,30, R. Miquel35,14, R. C. Nichol36, R. Ogando21,22, A. A. Plazas29, N. Roe37, A. K. Romer38, E. S. Rykoff3,15, E. Sanchez39, V. Scarpine4, M. Schubnell30, I. Sevilla-Noarbe39,23, M. Soares-Santos4, E. Suchyta10,11, M. E. C. Swanson24, G. Tarle30, J. Thaler40, V. Vikram41, A. R. Walker16, J. Weller27,31,28, and J. Zuntz8 (The DES Collaboration)

  • 1Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
  • 2Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
  • 3Kavli Institute for Particle Astrophysics & Cosmology, P.O. Box 2450, Stanford University, Stanford, California 94305, USA
  • 4Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA
  • 5Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
  • 6Department of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 16, CH-8093 Zurich, Switzerland
  • 7Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, California 94305, USA
  • 8Jodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
  • 9Institut de Ciències de l’Espai, IEEC-CSIC, Campus UAB, Carrer de Can Magrans, s/n, 08193 Bellaterra, Barcelona, Spain
  • 10Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, Ohio 43210, USA
  • 11Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
  • 12Department of Physics, University of Arizona, Tucson, Arizona 85721, USA
  • 13Laboratório Interinstitucional de e-Astronomia—LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, Rio de Janeiro 20921-400, Brazil
  • 14Institut de Física d’Altes Energies, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain
  • 15SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
  • 16Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603 La Serena, Chile
  • 17Department of Physics & Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
  • 18Department of Physics and Electronics, Rhodes University, P.O. Box 94, Grahamstown 6140, South Africa
  • 19CNRS, UMR 7095, Institut d’Astrophysique de Paris, F-75014 Paris, France
  • 20Sorbonne Universités, UPMC Univ Paris 06, UMR 7095, Institut d’Astrophysique de Paris, F-75014 Paris, France
  • 21Laboratório Interinstitucional de e-Astronomia—LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, Rio de Janeiro 20921-400, Brazil
  • 22Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, Rio de Janeiro 20921-400, Brazil
  • 23Department of Astronomy, University of Illinois, 1002 West Green Street, Urbana, Illinois 61801, USA
  • 24National Center for Supercomputing Applications, 1205 West Clark Street, Urbana, Illinois 61801, USA
  • 25George 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, USA
  • 26Department of Physics, Ludwig-Maximilians-Universität, Scheinerstr. 1, 81679 München, Germany
  • 27Excellence Cluster Universe, Boltzmannstr. 2, 85748 Garching, Germany
  • 28Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians Universität München, Scheinerstr. 1, 81679 München, Germany
  • 29Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109, USA
  • 30Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
  • 31Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, 85748 Garching, Germany
  • 32Australian Astronomical Observatory, North Ryde, New South Wales 2113, Australia
  • 33Departamento de Física Matemática, Instituto de Física, Universidade de São Paulo, CP 66318, CEP 05314-970, São Paulo, São Paulo, Brazil
  • 34Department of Astronomy, University of Michigan, Ann Arbor, Michigan 48109, USA
  • 35Institució Catalana de Recerca i Estudis Avançats, E-08010 Barcelona, Spain
  • 36Institute of Cosmology & Gravitation, University of Portsmouth, Portsmouth PO1 3FX, United Kingdom
  • 37Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
  • 38Department of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton BN1 9QH, United Kingdom
  • 39Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
  • 40Department of Physics, University of Illinois, 1110 West Green Street, Urbana, Illinois 61801, USA
  • 41Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, USA

  • *youngsoo@uchicago.edu
  • lise@slac.stanford.edu

Phys. Rev. D 94, 063533 – Published 30 September, 2016

DOI: https://doi.org/10.1103/PhysRevD.94.063533

Abstract

The joint analysis of galaxy-galaxy lensing and galaxy clustering is a promising method for inferring the growth function of large-scale structure. Anticipating a near future application of this analysis to Dark Energy Survey (DES) measurements of galaxy positions and shapes, we develop a practical approach to modeling the assumptions and systematic effects affecting the joint analysis of small-scale galaxy-galaxy lensing and large-scale galaxy clustering. Introducing parameters that characterize the halo occupation distribution (HOD), photometric redshift uncertainties, and shear measurement errors, we study how external priors on different subsets of these parameters affect our growth constraints. Degeneracies within the HOD model, as well as between the HOD and the growth function, are identified as the dominant source of complication, with other systematic effects being subdominant. The impact of HOD parameters and their degeneracies necessitate the detailed joint modeling of the galaxy sample that we employ. We conclude that DES data will provide powerful constraints on the evolution of structure growth in the Universe, conservatively/optimistically constraining the growth function to 7.9%/4.8% with its first-year data that cover over 1000 square degrees, and to 3.9%/2.3% with its full five-year data that will survey 5000 square degrees, including both statistical and systematic uncertainties.

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