Dark Energy Survey Year 1 Results: calibration of redMaGiC redshift distributions in DES and SDSS from cross-correlations
Abstract
We present calibrations of the redshift distributions of redMaGiC galaxies in the Dark Energy Survey Year 1 (DES Y1) and Sloan Digital Sky Survey (SDSS) DR8 data. These results determine the priors of the redshift distribution of redMaGiC galaxies, which were used for galaxy clustering measurements and as lenses for galaxy–galaxy lensing measurements in DES Y1 cosmological analyses. We empirically determine the bias in redMaGiC photometric redshift estimates using angular cross-correlations with Baryon Oscillation Spectroscopic Survey (BOSS) galaxies. For DES, we calibrate a single-parameter redshift bias in three photometric redshift bins: z ε [0.15, 0.3], [0.3,0.45], and [0.45,0.6]. Our best-fit results in each bin give photometric redshift biases of |Δz| < 0.01. To further test the redMaGiC algorithm, we apply our calibration procedure to SDSS redMaGiC galaxies, where the statistical precision of the cross-correlation measurement is much higher due to a greater overlap with BOSS galaxies. For SDSS, we also find best-fit results of |Δz| < 0.01. We compare our results to other analyses of redMaGiC photometric redshifts.
- Authors:
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- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA, Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637, USA
- Kavli Institute for Particle Astrophysics & Cosmology, P. O. Box 2450, Stanford University, Stanford, CA 94305, USA
- Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona) Spain
- Jodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
- Department of Physics, University of Arizona, Tucson, AZ 85721, USA
- Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA, Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA, Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637, USA
- 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
- Institute of Space Sciences, IEEC-CSIC, Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, Spain
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA
- 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
- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
- Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA, Kavli Institute for Particle Astrophysics & Cosmology, P. O. Box 2450, Stanford University, Stanford, CA 94305, USA
- Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA
- 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, Fakultät für Physik, Universitäts-Sternwarte, Ludwig-Maximilians Universität München, Scheinerstr. 1, D-81679 München, Germany
- Department of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, UK, Department of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 16, CH-8093 Zurich, Switzerland
- Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, Germany, Fakultät für Physik, Universitäts-Sternwarte, Ludwig-Maximilians Universität München, Scheinerstr. 1, D-81679 München, Germany
- 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, E-08193 Bellaterra (Barcelona) Spain
- Fakultät für Physik, Universitäts-Sternwarte, Ludwig-Maximilians Universität München, Scheinerstr. 1, D-81679 München, Germany
- Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USA
- 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
- Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA, 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
- Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile
- Department of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, UK, Department of Physics and Electronics, Rhodes University, PO Box 94, 6140 Grahamstown, South Africa
- Institute of Cosmology & Gravitation, University of Portsmouth, Portsmouth, PO1 3FX, UK, Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, Spain
- 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
- LSST, 933 North Cherry Avenue, Tucson, AZ 85721, USA
- Observatories of the Carnegie Institution of Washington, 813 Santa Barbara St., Pasadena, CA 91101, USA
- CNRS, UMR 7095, Institut d’Astrophysique de Paris, F-75014, Paris, France, Institut d’Astrophysique de Paris, Sorbonne Universités, UPMC Univ Paris 06, UMR 7095, F-75014, Paris, France
- Department of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, UK
- 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
- George 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, USA
- Department of Physics, IIT Hyderabad, Kandi, Telangana 502285, India
- 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
- Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA, Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
- Institute of Space Sciences (ICE, CSIC) & Institut d’Estudis Espacials de Catalunya (IEEC), Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, Spain
- Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, Spain
- Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA
- Astronomy Department, University of Washington, Box 351580, Seattle, WA 98195, USA
- Australian Astronomical Observatory, North Ryde, NSW 2113, Australia
- Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439, USA
- Departamento de Física Matemática, Instituto de Física, Universidade de São Paulo, CP 66318, São Paulo, SP, 05314-970, Brazil, Laboratório Interinstitucional de e-Astronomia – LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, Brazil
- Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USA, Department of Astronomy, The Ohio State University, Columbus, OH 43210, USA
- Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
- Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
- Brookhaven National Laboratory, Bldg 510, Upton, NY 11973, USA
- School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, UK
- 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
- Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- National Center for Supercomputing Applications, 1205 West Clark St., Urbana, IL 61801, USA
- Institute of Cosmology & Gravitation, University of Portsmouth, Portsmouth, PO1 3FX, UK
- (DES
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
- Contributing Org.:
- DES; DES Collaboration
- OSTI Identifier:
- 1471257
- Alternate Identifier(s):
- OSTI ID: 1418143; OSTI ID: 1479692; OSTI ID: 1488513
- Report Number(s):
- arXiv:1712.07298; FERMILAB-PUB-17-594-AE; BNL-209793-2018-JAAM
Journal ID: ISSN 0035-8711
- Grant/Contract Number:
- AC02-07CH11359; AC05-00OR22725; SC0012704
- Resource Type:
- Published Article
- Journal Name:
- Monthly Notices of the Royal Astronomical Society
- Additional Journal Information:
- Journal Name: Monthly Notices of the Royal Astronomical Society Journal Volume: 481 Journal Issue: 2; Journal ID: ISSN 0035-8711
- Publisher:
- Oxford University Press
- Country of Publication:
- United Kingdom
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; surveys; galaxies: distances and redshifts; large-scale structure of Universe; galaxies; distances; redshifts; scale; structure; Universe; SDSS
Citation Formats
Cawthon, R., Davis, C., Gatti, M., Vielzeuf, P., Elvin-Poole, J., Rozo, E., Frieman, J., Rykoff, E. S., Alarcon, A., Bernstein, G. M., Bonnett, C., Rosell, A. Carnero, Castander, F. J., Chang, C., da Costa, L. N., De Vicente, J., DeRose, J., Drlica-Wagner, A., Gaztanaga, E., Giannantonio, T., Gruen, D., Gschwend, J., Hartley, W. G., Hoyle, B., Lin, H., Maia, M. A. G., Miquel, R., Ogando, R. L. C., Rau, M. M., Roodman, A., Ross, A. J., Sevilla-Noarbe, I., Troxel, M. A., Wechsler, R. H., Abbott, T. M. C., Abdalla, F. B., Allam, S., Annis, J., Avila, S., Banerji, M., Bechtol, K., Bernstein, R. A., Bertin, E., Brooks, D., Burke, D. L., Kind, M. Carrasco, Carretero, J., Cunha, C. E., D’Andrea, C. B., DePoy, D. L., Desai, S., Diehl, H. T., Doel, P., Eifler, T. F., Evrard, A. E., Flaugher, B., Fosalba, P., García-Bellido, J., Gerdes, D. W., Gruendl, R. A., Gutierrez, G., Hollowood, D., Honscheid, K., James, D. J., Jeltema, T., Krause, E., Kuehn, K., Kuhlmann, S., Kuropatkin, N., Lahav, O., Lima, M., Marshall, J. L., Martini, P., Menanteau, F., Miller, C. J., Plazas, A. A., Sanchez, E., Scarpine, V., Schindler, R., Schubnell, M., Sheldon, E., Smith, M., Smith, R. C., Soares-Santos, M., Sobreira, F., Suchyta, E., Swanson, M. E. C., Tarle, G., Thomas, D., Tucker, D. L., Walker, A. R., and Collaboration),. Dark Energy Survey Year 1 Results: calibration of redMaGiC redshift distributions in DES and SDSS from cross-correlations. United Kingdom: N. p., 2018.
Web. doi:10.1093/mnras/sty2424.
Cawthon, R., Davis, C., Gatti, M., Vielzeuf, P., Elvin-Poole, J., Rozo, E., Frieman, J., Rykoff, E. S., Alarcon, A., Bernstein, G. M., Bonnett, C., Rosell, A. Carnero, Castander, F. J., Chang, C., da Costa, L. N., De Vicente, J., DeRose, J., Drlica-Wagner, A., Gaztanaga, E., Giannantonio, T., Gruen, D., Gschwend, J., Hartley, W. G., Hoyle, B., Lin, H., Maia, M. A. G., Miquel, R., Ogando, R. L. C., Rau, M. M., Roodman, A., Ross, A. J., Sevilla-Noarbe, I., Troxel, M. A., Wechsler, R. H., Abbott, T. M. C., Abdalla, F. B., Allam, S., Annis, J., Avila, S., Banerji, M., Bechtol, K., Bernstein, R. A., Bertin, E., Brooks, D., Burke, D. L., Kind, M. Carrasco, Carretero, J., Cunha, C. E., D’Andrea, C. B., DePoy, D. L., Desai, S., Diehl, H. T., Doel, P., Eifler, T. F., Evrard, A. E., Flaugher, B., Fosalba, P., García-Bellido, J., Gerdes, D. W., Gruendl, R. A., Gutierrez, G., Hollowood, D., Honscheid, K., James, D. J., Jeltema, T., Krause, E., Kuehn, K., Kuhlmann, S., Kuropatkin, N., Lahav, O., Lima, M., Marshall, J. L., Martini, P., Menanteau, F., Miller, C. J., Plazas, A. A., Sanchez, E., Scarpine, V., Schindler, R., Schubnell, M., Sheldon, E., Smith, M., Smith, R. C., Soares-Santos, M., Sobreira, F., Suchyta, E., Swanson, M. E. C., Tarle, G., Thomas, D., Tucker, D. L., Walker, A. R., & Collaboration),. Dark Energy Survey Year 1 Results: calibration of redMaGiC redshift distributions in DES and SDSS from cross-correlations. United Kingdom. https://doi.org/10.1093/mnras/sty2424
Cawthon, R., Davis, C., Gatti, M., Vielzeuf, P., Elvin-Poole, J., Rozo, E., Frieman, J., Rykoff, E. S., Alarcon, A., Bernstein, G. M., Bonnett, C., Rosell, A. Carnero, Castander, F. J., Chang, C., da Costa, L. N., De Vicente, J., DeRose, J., Drlica-Wagner, A., Gaztanaga, E., Giannantonio, T., Gruen, D., Gschwend, J., Hartley, W. G., Hoyle, B., Lin, H., Maia, M. A. G., Miquel, R., Ogando, R. L. C., Rau, M. M., Roodman, A., Ross, A. J., Sevilla-Noarbe, I., Troxel, M. A., Wechsler, R. H., Abbott, T. M. C., Abdalla, F. B., Allam, S., Annis, J., Avila, S., Banerji, M., Bechtol, K., Bernstein, R. A., Bertin, E., Brooks, D., Burke, D. L., Kind, M. Carrasco, Carretero, J., Cunha, C. E., D’Andrea, C. B., DePoy, D. L., Desai, S., Diehl, H. T., Doel, P., Eifler, T. F., Evrard, A. E., Flaugher, B., Fosalba, P., García-Bellido, J., Gerdes, D. W., Gruendl, R. A., Gutierrez, G., Hollowood, D., Honscheid, K., James, D. J., Jeltema, T., Krause, E., Kuehn, K., Kuhlmann, S., Kuropatkin, N., Lahav, O., Lima, M., Marshall, J. L., Martini, P., Menanteau, F., Miller, C. J., Plazas, A. A., Sanchez, E., Scarpine, V., Schindler, R., Schubnell, M., Sheldon, E., Smith, M., Smith, R. C., Soares-Santos, M., Sobreira, F., Suchyta, E., Swanson, M. E. C., Tarle, G., Thomas, D., Tucker, D. L., Walker, A. R., and Collaboration),. Mon .
"Dark Energy Survey Year 1 Results: calibration of redMaGiC redshift distributions in DES and SDSS from cross-correlations". United Kingdom. https://doi.org/10.1093/mnras/sty2424.
@article{osti_1471257,
title = {Dark Energy Survey Year 1 Results: calibration of redMaGiC redshift distributions in DES and SDSS from cross-correlations},
author = {Cawthon, R. and Davis, C. and Gatti, M. and Vielzeuf, P. and Elvin-Poole, J. and Rozo, E. and Frieman, J. and Rykoff, E. S. and Alarcon, A. and Bernstein, G. M. and Bonnett, C. and Rosell, A. Carnero and Castander, F. J. and Chang, C. and da Costa, L. N. and De Vicente, J. and DeRose, J. and Drlica-Wagner, A. and Gaztanaga, E. and Giannantonio, T. and Gruen, D. and Gschwend, J. and Hartley, W. G. and Hoyle, B. and Lin, H. and Maia, M. A. G. and Miquel, R. and Ogando, R. L. C. and Rau, M. M. and Roodman, A. and Ross, A. J. and Sevilla-Noarbe, I. and Troxel, M. A. and Wechsler, R. H. and Abbott, T. M. C. and Abdalla, F. B. and Allam, S. and Annis, J. and Avila, S. and Banerji, M. and Bechtol, K. and Bernstein, R. A. and Bertin, E. and Brooks, D. and Burke, D. L. and Kind, M. Carrasco and Carretero, J. and Cunha, C. E. and D’Andrea, C. B. and DePoy, D. L. and Desai, S. and Diehl, H. T. and Doel, P. and Eifler, T. F. and Evrard, A. E. and Flaugher, B. and Fosalba, P. and García-Bellido, J. and Gerdes, D. W. and Gruendl, R. A. and Gutierrez, G. and Hollowood, D. and Honscheid, K. and James, D. J. and Jeltema, T. and Krause, E. and Kuehn, K. and Kuhlmann, S. and Kuropatkin, N. and Lahav, O. and Lima, M. and Marshall, J. L. and Martini, P. and Menanteau, F. and Miller, C. J. and Plazas, A. A. and Sanchez, E. and Scarpine, V. and Schindler, R. and Schubnell, M. and Sheldon, E. and Smith, M. and Smith, R. C. and Soares-Santos, M. and Sobreira, F. and Suchyta, E. and Swanson, M. E. C. and Tarle, G. and Thomas, D. and Tucker, D. L. and Walker, A. R. and Collaboration),},
abstractNote = {We present calibrations of the redshift distributions of redMaGiC galaxies in the Dark Energy Survey Year 1 (DES Y1) and Sloan Digital Sky Survey (SDSS) DR8 data. These results determine the priors of the redshift distribution of redMaGiC galaxies, which were used for galaxy clustering measurements and as lenses for galaxy–galaxy lensing measurements in DES Y1 cosmological analyses. We empirically determine the bias in redMaGiC photometric redshift estimates using angular cross-correlations with Baryon Oscillation Spectroscopic Survey (BOSS) galaxies. For DES, we calibrate a single-parameter redshift bias in three photometric redshift bins: z ε [0.15, 0.3], [0.3,0.45], and [0.45,0.6]. Our best-fit results in each bin give photometric redshift biases of |Δz| < 0.01. To further test the redMaGiC algorithm, we apply our calibration procedure to SDSS redMaGiC galaxies, where the statistical precision of the cross-correlation measurement is much higher due to a greater overlap with BOSS galaxies. For SDSS, we also find best-fit results of |Δz| < 0.01. We compare our results to other analyses of redMaGiC photometric redshifts.},
doi = {10.1093/mnras/sty2424},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 2,
volume = 481,
place = {United Kingdom},
year = {Mon Sep 03 00:00:00 EDT 2018},
month = {Mon Sep 03 00:00:00 EDT 2018}
}
https://doi.org/10.1093/mnras/sty2424
Web of Science
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