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Title: Dark Energy Survey Year 1 Results: calibration of redMaGiC redshift distributions in DES and SDSS from cross-correlations

Abstract

Here, 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: $$z \in[0.15,0.3]$$, [0.3,0.45], and [0.45,0.6]. Our best fit results in each bin give photometric redshift biases of $$|\Delta z|<0.01$$. 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 $$|\Delta z|<0.01$$. We compare our results to other analyses of redMaGiC photometric redshifts.

Authors:
 [1];  [2];  [3];  [3];  [4];  [5];  [6];  [7];  [8];  [9];  [3];  [10];  [8];  [11];  [10];  [12];  [13];  [14];  [8];  [15] more »;  [7];  [10];  [16];  [17];  [14];  [10];  [18];  [10];  [19];  [7];  [20];  [12];  [21];  [22];  [23];  [24];  [14];  [14];  [25];  [26];  [27];  [28];  [29];  [30];  [7];  [31];  [3];  [2];  [9];  [32];  [33];  [14];  [30];  [34];  [35];  [14];  [36];  [37];  [35];  [31];  [14];  [38];  [21];  [39];  [38];  [34];  [40];  [41];  [14];  [30];  [42];  [32];  [43];  [31];  [35];  [44];  [12];  [14];  [45];  [46];  [47];  [48];  [23];  [14];  [49];  [50];  [51];  [46];  [52];  [14];  [23];  [53] « less
  1. Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA; Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637, USA
  2. Kavli Institute for Particle Astrophysics & Cosmology, P. O. Box 2450, Stanford University, Stanford, CA 94305, USA
  3. Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona) Spain
  4. Jodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
  5. Department of Physics, University of Arizona, Tucson, AZ 85721, USA
  6. 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
  7. 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
  8. Institute of Space Sciences, IEEC-CSIC, Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, Spain
  9. Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA
  10. 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
  11. Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
  12. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
  13. 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
  14. Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA
  15. 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
  16. 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
  17. 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
  18. 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
  19. Fakultät für Physik, Universitäts-Sternwarte, Ludwig-Maximilians Universität München, Scheinerstr. 1, D-81679 München, Germany
  20. Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USA
  21. 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
  22. 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
  23. Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile
  24. 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
  25. 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
  26. 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
  27. LSST, 933 North Cherry Avenue, Tucson, AZ 85721, USA
  28. Observatories of the Carnegie Institution of Washington, 813 Santa Barbara St., Pasadena, CA 91101, USA
  29. 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
  30. Department of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, UK
  31. 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
  32. 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
  33. Department of Physics, IIT Hyderabad, Kandi, Telangana 502285, India
  34. 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
  35. Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA; Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
  36. 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
  37. Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, Spain
  38. Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA
  39. Astronomy Department, University of Washington, Box 351580, Seattle, WA 98195, USA
  40. Australian Astronomical Observatory, North Ryde, NSW 2113, Australia
  41. Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439, USA
  42. 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
  43. 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
  44. Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA
  45. SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
  46. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
  47. Brookhaven National Laboratory, Bldg 510, Upton, NY 11973, USA
  48. School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, UK
  49. 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
  50. Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
  51. National Center for Supercomputing Applications, 1205 West Clark St., Urbana, IL 61801, USA
  52. Institute of Cosmology & Gravitation, University of Portsmouth, Portsmouth, PO1 3FX, UK
  53. (DES
Publication Date:
Research Org.:
Brookhaven National Laboratory (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) (SC-25)
Contributing Org.:
DES
OSTI Identifier:
1471257
Alternate Identifier(s):
OSTI ID: 1418143
Report Number(s):
arXiv:1712.07298; FERMILAB-PUB-17-594-AE
Journal ID: ISSN 0035-8711; 1644316
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article: Published Article
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 481; Journal Issue: 2; Journal ID: ISSN 0035-8711
Publisher:
Royal Astronomical Society
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; surveys; galaxies: distances and redshifts; large-scale structure of Universe

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 States: 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 States. 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., and Collaboration),. Mon . "Dark Energy Survey Year 1 Results: calibration of redMaGiC redshift distributions in DES and SDSS from cross-correlations". United States. doi: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 = {Here, 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: $z \in[0.15,0.3]$, [0.3,0.45], and [0.45,0.6]. Our best fit results in each bin give photometric redshift biases of $|\Delta z|<0.01$. 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 $|\Delta z|<0.01$. 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 States},
year = {Mon Sep 03 00:00:00 EDT 2018},
month = {Mon Sep 03 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1093/mnras/sty2424

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