Dark Energy Survey Year 3 Results: clustering redshifts – calibration of the weak lensing source redshift distributions with <i>redMaGiC</i> and BOSS/eBOSS
M. GattiInstitut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology , Campus UAB, E-08193 Bellaterra (Barcelona), SpainG. GianniniInstitut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology , Campus UAB, E-08193 Bellaterra (Barcelona), SpainG. M. BernsteinDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USAA. AlarconArgonne National Laboratory , 9700 South Cass Avenue, Lemont, IL 60439, USAJ. MylesDepartment of Physics, Stanford University , 382 Via Pueblo Mall, Stanford, CA 94305, USAA. AmonKavli Institute for Particle Astrophysics & Cosmology , PO Box 2450, Stanford University, Stanford, CA 94305, USAR. CawthonPhysics Department , 2320 Chamberlin Hall, University of Wisconsin-Madison, 1150 University Avenue Madison, WI 53706-1390, USAM. A. TroxelDepartment of Physics, Duke University Durham , NC 27708, USAJoseph DeRoseDepartment of Astronomy, University of California , Berkeley, 501 Campbell Hall, Berkeley, CA 94720, USAS. EverettA.J. RossCenter for Cosmology and Astro-Particle Physics, The Ohio State University , Columbus, OH 43210, USAE. S. RykoffKavli Institute for Particle Astrophysics & Cosmology , PO Box 2450, Stanford University, Stanford, CA 94305, USAJ. Elvin-PooleCenter for Cosmology and Astro-Particle Physics, The Ohio State University , Columbus, OH 43210, USAJ. CorderoJodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester , Oxford Road, Manchester M13 9PL, UKI. HarrisonJodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester , Oxford Road, Manchester M13 9PL, UKC. SánchezDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USAJ. PratDepartment of Astronomy and Astrophysics, University of Chicago , Chicago, IL 60637, USAD. GruenDepartment of Physics, Stanford University , 382 Via Pueblo Mall, Stanford, CA 94305, USAH. LinFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAM. CrocceInstitut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, SpainEduardo RozoDepartment of Physics, University of Arizona , Tucson, AZ 85721, USAT. M. C. AbbottCerro Tololo Inter-American Observatory , NSF’s National Optical-Infrared Astronomy Research Laboratory, Casilla 603, La Serena 1700000, ChileM. AguenaDepartamento de Física Matemática , Instituto de Física, Universidade de São Paulo, CP 66318, São Paulo, SP 05314-970, BrazilS. AllamFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAJ. AnnisFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAS. ÀvilaInstituto de Fisica Teorica UAM/CSIC , Universidad Autonoma de Madrid, E-28049 Madrid, SpainDavid BaconInstitute of Cosmology and Gravitation, University of Portsmouth , Portsmouth PO1 3FX, UKE. BertinCNRS , UMR 7095, Institut d’Astrophysique de Paris, F-75014 Paris, FranceDavid BrooksDepartment of Physics & Astronomy, University College London , Gower Street, London WC1E 6BT, UKD. L. BurkeKavli Institute for Particle Astrophysics & Cosmology , PO Box 2450, Stanford University, Stanford, CA 94305, USAA. Carnero RosellDpto. Astrofisica, Universidad de La Laguna , E-38206 La Laguna, Tenerife, SpainM. Carrasco KindDepartment of Astronomy, University of Illinois at Urbana-Champaign , 1002 W. Green Street, Urbana, IL 61801, USAJ. CarreteroInstitut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology , Campus UAB, E-08193 Bellaterra (Barcelona), SpainF. J. CastanderInstitut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, SpainA. ChoiCenter for Cosmology and Astro-Particle Physics, The Ohio State University , Columbus, OH 43210, USAChristopher J. ConseliceJodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester , Oxford Road, Manchester M13 9PL, UKM. CostanziINAF-Osservatorio Astronomico di Trieste , via G. B. Tiepolo 11, I-34143 Trieste, ItalyL. N. da CostaLaboratório Interinstitucional de e-Astronomia - LIneA , Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, BrazilM. E. S. PereiraDepartment of Physics, University of Michigan , Ann Arbor, MI 48109, USAKyle DawsonDepartment of Physics and Astronomy, University of Utah , 115 S. 1400 E., Salt Lake City, UT 84112, USAS DesaiDepartment of Physics , IIT Hyderabad, Kandi, Telangana 502285, IndiaH. T. DiehlFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAK. EckertDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USAT. F. EiflerDepartment of Astronomy/Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USAA E EvrardDepartment of Astronomy, University of Michigan , Ann Arbor, MI 48109, USAI. FerreroInstitute of Theoretical Astrophysics, University of Oslo . PO Box 1029 Blindern, NO-0315 Oslo, NorwayB. FlaugherFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAP. FosalbaInstitut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, SpainJ FriemanFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAJ. García-BellidoInstituto de Fisica Teorica UAM/CSIC , Universidad Autonoma de Madrid, E-28049 Madrid, SpainE. GaztañagaInstitut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, SpainT. GiannantonioInstitute of Astronomy, University of Cambridge , Madingley Road, Cambridge CB3 0HA, UKR. A. GruendlDepartment of Astronomy, University of Illinois at Urbana-Champaign , 1002 W. Green Street, Urbana, IL 61801, USAJ. GschwendLaboratório Interinstitucional de e-Astronomia - LIneA , Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, BrazilS. R. HintonSchool of Mathematics and Physics, University of Queensland , Brisbane, QLD 4072, AustraliaD L HollowoodKlaus HonscheidCenter for Cosmology and Astro-Particle Physics, The Ohio State University , Columbus, OH 43210, USAB HoyleFaculty of Physics , Ludwig-Maximilians-Universität, Scheinerstr 1, D-81679 Munich, GermanyDragan HutererObservatório Nacional , Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, BrazilD. J. JamesCenter for Astrophysics | Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USAK. KuehnAustralian Astronomical Optics, Macquarie University , North Ryde, NSW 2113, AustraliaN. KuropatkinFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAO. LahavDepartment of Physics & Astronomy, University College London , Gower Street, London WC1E 6BT, UKM. LimaDepartamento de Física Matemática , Instituto de Física, Universidade de São Paulo, CP 66318, São Paulo, SP 05314-970, BrazilN MacCrannDepartment of Applied Mathematics and Theoretical Physics , University of Cambridge, Cambridge CB3 0WA, UKM. A. G. MaiaLaboratório Interinstitucional de e-Astronomia - LIneA , 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, USAP. MelchiorDepartment of Astrophysical Sciences, Princeton University , Peyton Hall, Princeton, NJ 08544, USAF. MenanteauDepartment of Astronomy, University of Illinois at Urbana-Champaign , 1002 W. Green Street, Urbana, IL 61801, USAR MiquelInstitució Catalana de Recerca i Estudis Avançats , E-08010 Barcelona, SpainJ J MohrFaculty of Physics , Ludwig-Maximilians-Universität, Scheinerstr 1, D-81679 Munich, GermanyR. MorganPhysics Department , 2320 Chamberlin Hall, University of Wisconsin-Madison, 1150 University Avenue Madison, WI 53706-1390, USAR. L. C. OgandoInstitute for Fundamental Physics of the Universe , Via Beirut 2, I-34014 Trieste, ItalyA. PalmeseFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAF. Paz-ChinchónInstitute of Astronomy, University of Cambridge , Madingley Road, Cambridge CB3 0HA, UKWill J. PercivalDepartment of Physics and Astronomy, University of Waterloo , 200 University Ave W, Waterloo, ON N2L 3G1, CanadaA A PlazasGeorge 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, USAM Rodriguez-MonroyCentro de Investigaciones Energéticas , Medioambientales y Tecnológicas (CIEMAT), E-28040 Madrid, SpainA. RoodmanKavli Institute for Particle Astrophysics & Cosmology , PO Box 2450, Stanford University, Stanford, CA 94305, USAGraziano RossiDepartment of Physics and Astronomy, Sejong University , Seoul 143-747, KoreaS SamuroffDepartment of Physics, Carnegie Mellon University , Pittsburgh, Pennsylvania 15312, USAE. SánchezCentro de Investigaciones Energéticas , Medioambientales y Tecnológicas (CIEMAT), E-28040 Madrid, SpainV. ScarpineFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAL F SeccoDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USAS. SerranoInstitut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, SpainI. Sevilla-NoarbeCentro de Investigaciones Energéticas , Medioambientales y Tecnológicas (CIEMAT), E-28040 Madrid, SpainM. SmithSchool of Physics and Astronomy, University of Southampton , Southampton SO17 1BJ, UKM. Soares-SantosObservatório Nacional , Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, BrazilE. SuchytaComputer Science and Mathematics Division , Oak Ridge National Laboratory, Oak Ridge, TN 37831, 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, USAD. ThomasInstitute of Cosmology and Gravitation, University of Portsmouth , Portsmouth PO1 3FX, UKC. ToDepartment of Physics, Stanford University , 382 Via Pueblo Mall, Stanford, CA 94305, USAT N VargaMax Planck Institute for Extraterrestrial Physics , Giessenbachstrasse, D-85748 Garching, GermanyJ. WellerMax Planck Institute for Extraterrestrial Physics , Giessenbachstrasse, D-85748 Garching, GermanyR. D. WilkinsonDepartment of Physics and Astronomy , Pevensey Building, University of Sussex, Brighton BN1 9QH, UK
2021en
ABI
Аннотация
ABSTRACT We present the calibration of the Dark Energy Survey Year 3 (DES Y3) weak lensing (WL) source galaxy redshift distributions n(z) from clustering measurements. In particular, we cross-correlate the WL source galaxies sample with redMaGiC galaxies (luminous red galaxies with secure photometric redshifts) and a spectroscopic sample from BOSS/eBOSS to estimate the redshift distribution of the DES sources sample. Two distinct methods for using the clustering statistics are described. The first uses the clustering information independently to estimate the mean redshift of the source galaxies within a redshift window, as done in the DES Y1 analysis. The second method establishes a likelihood of the clustering data as a function of n(z), which can be incorporated into schemes for generating samples of n(z) subject to combined clustering and photometric constraints. Both methods incorporate marginalization over various astrophysical systematics, including magnification and redshift-dependent galaxy-matter bias. We characterize the uncertainties of the methods in simulations; the first method recovers the mean z of tomographic bins to RMS (precision) of ∼0.014. Use of the second method is shown to vastly improve the accuracy of the shape of n(z) derived from photometric data. The two methods are then applied to the DES Y3 data.
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