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Title: Weak lensing magnification in the Dark Energy Survey Science Verification data

In this paper the effect of weak lensing magnification on galaxy number counts is studied by cross-correlating the positions of two galaxy samples, separated by redshift, using data from the Dark Energy Survey Science Verification dataset. The analysis is carried out for two photometrically-selected galaxy samples, with mean photometric redshifts in the $0.2 < z < 0.4$ and $0.7 < z < 1.0$ ranges, in the riz bands. A signal is detected with a $$3.5\sigma$$ significance level in each of the bands tested, and is compatible with the magnification predicted by the $$\Lambda$$CDM model. After an extensive analysis, it cannot be attributed to any known systematic effect. The detection of the magnification signal is robust to estimated uncertainties in the outlier rate of the pho- tometric redshifts, but this will be an important issue for use of photometric redshifts in magnification mesurements from larger samples. In addition to the detection of the magnification signal, a method to select the sample with the maximum signal-to-noise is proposed and validated with data.
Authors:
ORCiD logo [1] ;  [1] ;  [1] ; ORCiD logo [2] ;  [3] ;  [4] ;  [5] ;  [1] ;  [4] ; ORCiD logo [6] ;  [7] ;  [8] ;  [9] ;  [9] ;  [10] ;  [11] ;  [12] ;  [13] ;  [9] ;  [14] more »;  [15] ;  [16] ;  [17] ; ORCiD logo [4] ;  [18] ;  [19] ;  [15] ;  [20] ;  [21] ;  [9] ;  [3] ;  [22] ;  [5] ;  [9] ;  [4] ;  [23] ;  [24] ;  [25] ;  [26] ; ORCiD logo [14] ;  [16] ;  [15] ;  [9] ;  [27] ;  [11] ;  [13] ;  [18] ;  [28] ;  [9] ;  [13] ;  [29] ;  [30] ;  [15] ;  [11] ;  [20] ; ORCiD logo [31] ;  [32] ;  [33] ;  [3] ;  [34] ;  [14] ;  [14] ;  [9] ;  [25] ;  [7] ;  [9] ;  [35] ;  [25] ;  [36] ;  [7] ;  [9] ;  [37] « less
  1. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), E-28040 Madrid, Spain
  2. Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
  3. Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA
  4. Institut de Ciències de l'Espai, IEEC-CSIC, Campus UAB, Carrer de Can Magrans, s/n, E-08193 Bellaterra, Barcelona, Spain
  5. Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra, Barcelona, Spain
  6. Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians Universität München, Scheinerstr. 1, D-81679 München, Germany
  7. Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile
  8. Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, UK; Department of Physics and Electronics, Rhodes University, PO Box 94, Grahamstown 6140, South Africa
  9. Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA
  10. Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, UK; 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
  11. Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA
  12. 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
  13. Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, UK
  14. Kavli Institute for Particle Astrophysics and Cosmology, P. O. Box 2450, Stanford University, Stanford, CA 94305, USA; SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
  15. 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
  16. Department of Astronomy, University of Illinois, 1002 W. Green Street, Urbana, IL 61801, USA; National Center for Supercomputing Applications, 1205 West Clark St., Urbana, IL 61801, USA
  17. Institut de Ciències de l'Espai, IEEC-CSIC, Campus UAB, Carrer de Can Magrans, s/n, E-08193 Bellaterra, Barcelona, Spain; Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra, Barcelona, Spain
  18. Kavli Institute for Particle Astrophysics and Cosmology, P. O. Box 2450, Stanford University, Stanford, CA 94305, USA
  19. Institute of Cosmology and Gravitation, University of Portsmouth, Portsmouth, PO1 3FX, UK; School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, UK
  20. 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
  21. Department of Physics, IIT Hyderabad, Kandi, Telangana 502285, India
  22. Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA; Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
  23. Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA; Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
  24. Instituto de Física Teórica IFT-UAM/CSIC Universidad Autónoma de Madrid, Cantoblanco E-28049, Madrid, Spain
  25. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
  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. Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile; Astronomy Department, University of Washington, Box 351580, Seattle, WA 98195, USA
  28. Australian Astronomical Observatory, North Ryde, NSW 2113, Australia
  29. Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, Brazil; Departamento de Física Matemática, Instituto de Física, Universidade de São Paulo, CP 66318, CEP 05314-970, São Paulo, SP, Brazil
  30. Jodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
  31. Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA
  32. Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats, E-08010 Barcelona, Spain
  33. Excellence Cluster Universe, Boltzmannstr. 2, D-85748 Garching, Germany; Faculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr. 1, D-81679 Munich, Germany; Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, Germany
  34. Department of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton, BN1 9QH, UK
  35. Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, Brazil; Universidade Federal do ABC, Centro de Ciências Naturais e Humanas, Av. dos Estados, 5001, Santo André, SP, Brazil, 09210-580
  36. Institute of Cosmology and Gravitation, University of Portsmouth, Portsmouth, PO1 3FX, UK
  37. (
Publication Date:
Report Number(s):
DES-2016-0203; FERMILAB-PUB-16-567-AE; arXiv:1611.10326
Journal ID: ISSN 0035-8711; 1500970
Grant/Contract Number:
AC02-07CH11359; AC02-76SF00515; AST-1138766; AYA2012-39559; ESP2013-48274; FPA2015-68048; SEV-2012-0234; MDM-2015-0509; FP7/2007-2013; 240672; 291329; 306478; AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 476; Journal Issue: 1; Journal ID: ISSN 0035-8711
Publisher:
Royal Astronomical Society
Research Org:
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 Orgs:
The DES Collaboration
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; gravitational lensing: weak; methods: data analysis; techniques: photometric; large-scale structure of Universe
OSTI Identifier:
1434674
Alternate Identifier(s):
OSTI ID: 1362052; OSTI ID: 1435207

Garcia-Fernandez, M., Sanchez, E., Sevilla-Noarbe, I., Suchyta, E., Huff, E. M., Gaztanaga, E., Aleksić, J., Ponce, R., Castander, F. J., Hoyle, B., Abbott, T. M. C., Abdalla, F. B., Allam, S., Annis, J., Benoit-Lévy, A., Bernstein, G. M., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Crocce, M., Cunha, C. E., D'Andrea, C. B., da Costa, L. N., DePoy, D. L., Desai, S., Diehl, H. T., Eifler, T. F., Evrard, A. E., Fernandez, E., Flaugher, B., Fosalba, P., Frieman, J., García-Bellido, J., Gerdes, D. W., Giannantonio, T., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., James, D. J., Jarvis, M., Kirk, D., Krause, E., Kuehn, K., Kuropatkin, N., Lahav, O., Lima, M., MacCrann, N., Maia, M. A. G., March, M., Marshall, J. L., Melchior, P., Miquel, R., Mohr, J. J., Plazas, A. A., Romer, A. K., Roodman, A., Rykoff, E. S., Scarpine, V., Schubnell, M., Smith, R. C., Soares-Santos, M., Sobreira, F., Tarle, G., Thomas, D., Walker, A. R., Wester, W., and The DES Collaboration),. Weak lensing magnification in the Dark Energy Survey Science Verification data. United States: N. p., Web. doi:10.1093/mnras/sty282.
Garcia-Fernandez, M., Sanchez, E., Sevilla-Noarbe, I., Suchyta, E., Huff, E. M., Gaztanaga, E., Aleksić, J., Ponce, R., Castander, F. J., Hoyle, B., Abbott, T. M. C., Abdalla, F. B., Allam, S., Annis, J., Benoit-Lévy, A., Bernstein, G. M., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Crocce, M., Cunha, C. E., D'Andrea, C. B., da Costa, L. N., DePoy, D. L., Desai, S., Diehl, H. T., Eifler, T. F., Evrard, A. E., Fernandez, E., Flaugher, B., Fosalba, P., Frieman, J., García-Bellido, J., Gerdes, D. W., Giannantonio, T., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., James, D. J., Jarvis, M., Kirk, D., Krause, E., Kuehn, K., Kuropatkin, N., Lahav, O., Lima, M., MacCrann, N., Maia, M. A. G., March, M., Marshall, J. L., Melchior, P., Miquel, R., Mohr, J. J., Plazas, A. A., Romer, A. K., Roodman, A., Rykoff, E. S., Scarpine, V., Schubnell, M., Smith, R. C., Soares-Santos, M., Sobreira, F., Tarle, G., Thomas, D., Walker, A. R., Wester, W., & The DES Collaboration),. Weak lensing magnification in the Dark Energy Survey Science Verification data. United States. doi:10.1093/mnras/sty282.
Garcia-Fernandez, M., Sanchez, E., Sevilla-Noarbe, I., Suchyta, E., Huff, E. M., Gaztanaga, E., Aleksić, J., Ponce, R., Castander, F. J., Hoyle, B., Abbott, T. M. C., Abdalla, F. B., Allam, S., Annis, J., Benoit-Lévy, A., Bernstein, G. M., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Crocce, M., Cunha, C. E., D'Andrea, C. B., da Costa, L. N., DePoy, D. L., Desai, S., Diehl, H. T., Eifler, T. F., Evrard, A. E., Fernandez, E., Flaugher, B., Fosalba, P., Frieman, J., García-Bellido, J., Gerdes, D. W., Giannantonio, T., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., James, D. J., Jarvis, M., Kirk, D., Krause, E., Kuehn, K., Kuropatkin, N., Lahav, O., Lima, M., MacCrann, N., Maia, M. A. G., March, M., Marshall, J. L., Melchior, P., Miquel, R., Mohr, J. J., Plazas, A. A., Romer, A. K., Roodman, A., Rykoff, E. S., Scarpine, V., Schubnell, M., Smith, R. C., Soares-Santos, M., Sobreira, F., Tarle, G., Thomas, D., Walker, A. R., Wester, W., and The DES Collaboration),. 2018. "Weak lensing magnification in the Dark Energy Survey Science Verification data". United States. doi:10.1093/mnras/sty282.
@article{osti_1434674,
title = {Weak lensing magnification in the Dark Energy Survey Science Verification data},
author = {Garcia-Fernandez, M. and Sanchez, E. and Sevilla-Noarbe, I. and Suchyta, E. and Huff, E. M. and Gaztanaga, E. and Aleksić, J. and Ponce, R. and Castander, F. J. and Hoyle, B. and Abbott, T. M. C. and Abdalla, F. B. and Allam, S. and Annis, J. and Benoit-Lévy, A. and Bernstein, G. M. and Bertin, E. and Brooks, D. and Buckley-Geer, E. and Burke, D. L. and Carnero Rosell, A. and Carrasco Kind, M. and Carretero, J. and Crocce, M. and Cunha, C. E. and D'Andrea, C. B. and da Costa, L. N. and DePoy, D. L. and Desai, S. and Diehl, H. T. and Eifler, T. F. and Evrard, A. E. and Fernandez, E. and Flaugher, B. and Fosalba, P. and Frieman, J. and García-Bellido, J. and Gerdes, D. W. and Giannantonio, T. and Gruen, D. and Gruendl, R. A. and Gschwend, J. and Gutierrez, G. and James, D. J. and Jarvis, M. and Kirk, D. and Krause, E. and Kuehn, K. and Kuropatkin, N. and Lahav, O. and Lima, M. and MacCrann, N. and Maia, M. A. G. and March, M. and Marshall, J. L. and Melchior, P. and Miquel, R. and Mohr, J. J. and Plazas, A. A. and Romer, A. K. and Roodman, A. and Rykoff, E. S. and Scarpine, V. and Schubnell, M. and Smith, R. C. and Soares-Santos, M. and Sobreira, F. and Tarle, G. and Thomas, D. and Walker, A. R. and Wester, W. and The DES Collaboration),},
abstractNote = {In this paper the effect of weak lensing magnification on galaxy number counts is studied by cross-correlating the positions of two galaxy samples, separated by redshift, using data from the Dark Energy Survey Science Verification dataset. The analysis is carried out for two photometrically-selected galaxy samples, with mean photometric redshifts in the $0.2 < z < 0.4$ and $0.7 < z < 1.0$ ranges, in the riz bands. A signal is detected with a $3.5\sigma$ significance level in each of the bands tested, and is compatible with the magnification predicted by the $\Lambda$CDM model. After an extensive analysis, it cannot be attributed to any known systematic effect. The detection of the magnification signal is robust to estimated uncertainties in the outlier rate of the pho- tometric redshifts, but this will be an important issue for use of photometric redshifts in magnification mesurements from larger samples. In addition to the detection of the magnification signal, a method to select the sample with the maximum signal-to-noise is proposed and validated with data.},
doi = {10.1093/mnras/sty282},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 1,
volume = 476,
place = {United States},
year = {2018},
month = {2}
}