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Title:
A catalogue of structural and morphological measurements for DES Y1
Authors:
Tarsitano, F.; Hartley, W. G.; Amara, A.; Bluck, A.; Bruderer, C.; Carollo, M.; Conselice, C.; Melchior, P.; Moraes, B.; Refregier, A.; Sevilla-Noarbe, I.; Woo, J.; Abbott, T. M. C.; Allam, S.; Annis, J.; Avila, S.; Banerji, M.; Bertin, E.; Brooks, D.; Burke, D. L.; Carnero Rosell, A.; Carrasco Kind, M.; Carretero, J.; Cunha, C. E.; D'Andrea, C. B.; da Costa, L. N.; Davis, C.; De Vicente, J.; Desai, S.; Doel, P.; Estrada, J.; Frieman, J.; García-Bellido, J.; Gruen, D.; Gruendl, R. A.; Gutierrez, G.; Hollowood, D.; Honscheid, K.; James, D. J.; Jeltema, T.; Krause, E.; Kuehn, K.; Kuropatkin, N.; Lahav, O.; Maia, M. A. G.; Menanteau, F.; Miquel, R.; Plazas, A. A.; Romer, A. K.; Roodman, A.; Sanchez, E.; Santiago, B.; Schindler, R.; Smith, M.; Smith, R. C.; Soares-Santos, M.; Sobreira, F.; Suchyta, E.; Swanson, M. E. C.; Tarle, G.; Thomas, D.; Vikram, V.; Walker, A. R.;
Affiliation:
AA(Institute for Particle Physics and Astrophysics, ETH Zurich, Wolfgang-Pauli-Strasse 27, CH-8093 Zurich, Switzerland), AB(Department of Physics, Astronomy, University College London, Gower Street, London, WC1E 6BT, UK), AC(Institute for Particle Physics and Astrophysics, ETH Zurich, Wolfgang-Pauli-Strasse 27, CH-8093 Zurich, Switzerland), AD(Department of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 16, CH-8093 Zurich, Switzerland), AE(Institute for Particle Physics and Astrophysics, ETH Zurich, Wolfgang-Pauli-Strasse 27, CH-8093 Zurich, Switzerland), AF(Department of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 16, CH-8093 Zurich, Switzerland), AG(University of Nottingham, School of Physics and Astronomy, Nottingham NG7 2RD, UK), AH(Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA 0000-0002-8873-5065), AI(Department of Physics, Astronomy, University College London, Gower Street, London, WC1E 6BT, UK), AJ(Institute for Particle Physics and Astrophysics, ETH Zurich, Wolfgang-Pauli-Strasse 27, CH-8093 Zurich, Switzerland), AK(Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain), AL(Department of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 16, CH-8093 Zurich, Switzerland), AM(Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile), AN(Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA), AO(Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA), AP(Institute of Cosmology, Gravitation, University of Portsmouth, Portsmouth, PO1 3FX, UK 0000-0001-5043-3662), AQ(Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK; Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK 0000-0002-0639-5141), AR(CNRS, UMR 7095, Institut d'Astrophysique de Paris, F-75014, Paris, France; Sorbonne Universités, UPMC Univ Paris 06, UMR 7095, Institut d'Astrophysique de Paris, F-75014, Paris, France), AS(Department of Physics, Astronomy, University College London, Gower Street, London, WC1E 6BT, UK), AT(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), AU(Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, Brazil; Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, Brazil), AV(Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 W. Green Street, Urbana, IL 61801, USA), AW(Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Barcelona, Spain), AX(Kavli Institute for Particle Astrophysics, Cosmology, P. O. Box 2450, Stanford University, Stanford, CA 94305, USA), AY(Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA), AZ(Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, Brazil; Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, Brazil), BA(Kavli Institute for Particle Astrophysics, Cosmology, P. O. Box 2450, Stanford University, Stanford, CA 94305, USA), BB(Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain), BC(Department of Physics, IIT Hyderabad, Kandi, Telangana 502285, India), BD(Department of Physics, Astronomy, University College London, Gower Street, London, WC1E 6BT, UK), BE(Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA), BF(Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA; Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA), BG(Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, 28049 Madrid, Spain), BH(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 0000-0003-3270-7644), BI(Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 W. Green Street, Urbana, IL 61801, USA; National Center for Supercomputing Applications, 1205 West Clark St., Urbana, IL 61801, USA), BJ(Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA), BK(Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA), BL(Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USA; Department of Physics, The Ohio State University, Columbus, OH 43210, USA), BM(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA), BN(Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA), BO(Department of Astronomy/Steward Observatory, 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA; Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA), BP(Australian Astronomical Observatory, North Ryde, NSW 2113, Australia), BQ(Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA), BR(Department of Physics, Astronomy, University College London, Gower Street, London, WC1E 6BT, UK), BS(Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, Brazil; Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, Brazil), BT(Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 W. Green Street, Urbana, IL 61801, USA; National Center for Supercomputing Applications, 1205 West Clark St., Urbana, IL 61801, USA), BU(Institució Catalana de Recerca i Estudis Avançats, E-08010 Barcelona, Spain; Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Barcelona, Spain), BV(Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA), BW(Department of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton, BN1 9QH, UK), BX(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), BY(Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain), BZ(Instituto de Física, UFRGS, Caixa Postal 15051, Porto Alegre, RS - 91501-970, Brazil; Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, Brazil), CA(SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA), CB(School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, UK), CC(Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile), CD(Brandeis University, Physics Department, 415 South Street, Waltham, MA 02453, USA 0000-0001-6082-8529), CE(Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, 13083-859 Campinas, SP, Brazil; Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, Brazil), CF(Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA 0000-0002-7047-9358), CG(National Center for Supercomputing Applications, 1205 West Clark St., Urbana, IL 61801, USA), CH(Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA), CI(Institute of Cosmology, Gravitation, University of Portsmouth, Portsmouth, PO1 3FX, UK), CJ(Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439, USA), CK(Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile)
Publication:
Monthly Notices of the Royal Astronomical Society, Volume 481, Issue 2, p.2018-2040 (MNRAS Homepage)
Publication Date:
12/2018
Origin:
OUP
Astronomy Keywords:
catalogues, surveys, Galaxy evolution, Galaxy structure, galaxies: general
Abstract Copyright:
2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society
DOI:
10.1093/mnras/sty1970
Bibliographic Code:
2018MNRAS.481.2018T

Abstract

We present a structural and morphological catalogue for 45 million objects selected from the first year data of the Dark Energy Survey (DES). Single Sérsic fits and non-parametric measurements are produced for g, r, and i filters. The parameters from the best-fitting Sérsic model (total magnitude, half-light radius, Sérsic index, axis ratio, and position angle) are measured with GALFIT; the non-parametric coefficients (concentration, asymmetry, clumpiness, Gini, M20) are provided using the Zurich Estimator of Structural Types (ZEST+). To study the statistical uncertainties, we consider a sample of state-of-the-art image simulations with a realistic distribution in the input parameter space and then process and analyse them as we do with real data: this enables us to quantify the observational biases due to PSF blurring and magnitude effects and correct the measurements as a function of magnitude, galaxy size, Sérsic index (concentration for the analysis of the non-parametric measurements) and ellipticity. We present the largest structural catalogue to date: we find that accurate and complete measurements for all the structural parameters are typically obtained for galaxies with SEXTRACTOR {MAG_AUTO_I} <= 21. Indeed, the parameters in the filters i and r can be overall well recovered up to {MAG_AUTO} <= 21.5, corresponding to a fitting completeness of {˜ } 90{{ per cent}} below this threshold, for a total of 25 million galaxies. The combination of parametric and non-parametric structural measurements makes this catalogue an important instrument to explore and understand how galaxies form and evolve. The catalogue described in this paper will be publicly released alongside the DES collaboration Y1 cosmology data products at the following URL: https://des.ncsa.illinois.edu/releases.
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