Galaxy bias from galaxy–galaxy lensing in the DES science verification data

Journal Article · Mon Sep 25 04:00:00 UTC 2017 · Monthly Notices of the Royal Astronomical Society

DOI: https://doi.org/10.1093/mnras/stx2430 · OSTI ID:1362055

Prat, J.  ^[1]; Sánchez, C. ^[1]; Miquel, R. ^[2]; Kwan, J. ^[3]; Blazek, J. ^[4]; Bonnett, C. ^[1]; Amara, A. ^[5]; Bridle, S. L. ^[6]; Clampitt, J. ^[3]; Crocce, M. ^[7]; Fosalba, P. ^[7]; Gaztanaga, E. ^[7]; Giannantonio, T. ^[8]; Hartley, W. G. ^[9]; Jarvis, M. ^[3]; MacCrann, N. ^[6]; Percival, W. J. ^[10]; Ross, A. J.  ^[4]; Sheldon, E. ^[11]; Zuntz, J.  ^[6] ; Abbott, T. M. C. ^[12]; Abdalla, F. B. ^[13]; Annis, J. ^[14]; Benoit-Lévy, A. ^[15]; Bertin, E. ^[16]; Brooks, D. ^[17]; Burke, D. L. ^[18]; Carnero Rosell, A. ^[19]; Carrasco Kind, M. ^[20]; Carretero, J. ^[21]; Castander, F. J. ^[7]; da Costa, L. N. ^[19]; DePoy, D. L. ^[22]; Desai, S. ^[23]; Diehl, H. T. ^[14]; Doel, P. ^[17]; Eifler, T. F. ^[24]; Evrard, A. E. ^[25]; Fausti Neto, A. ^[26]; Flaugher, B. ^[14]; Frieman, J. ^[27]; Gerdes, D. W. ^[28]; Goldstein, D. A. ^[29]; Gruen, D. ^[18]; Gruendl, R. A. ^[20]; Gutierrez, G. ^[14]; Honscheid, K. ^[30]; James, D. J. ^[31]; Kuehn, K. ^[32]; Kuropatkin, N. ^[14]; Lahav, O. ^[17]; Lima, M. ^[33]; Marshall, J. L. ^[22]; Melchior, P. ^[34]; Menanteau, F. ^[20]; Nord, B. ^[14]; Plazas, A. A. ^[24]; Reil, K. ^[35]; Romer, A. K. ^[36]; Roodman, A. ^[18]; Sanchez, E. ^[37]; Scarpine, V. ^[14]; Schubnell, M. ^[28]; Sevilla-Noarbe, I. ^[37]; Smith, R. C. ^[12]; Soares-Santos, M. ^[14]; Sobreira, F. ^[38]; Suchyta, E. ^[39]; Swanson, M. E. C. ^[40]; Tarle, G. ^[28]; Thomas, D. ^[10]; Walker, A. R. ^[12]

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1. Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona), Spain
2. 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
3. Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA
4. Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USA
5. Department of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 16, CH-8093 Zurich, Switzerland
6. Jodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, UK
7. Institut de Ciències de l'Espai, IEEC-CSIC, Campus UAB, Carrer de Can Magrans, s/n, E-08193 Bellaterra, Barcelona, Spain
8. 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
9. Department of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 16, CH-8093 Zurich, Switzerland; Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
10. Institute of Cosmology and Gravitation, University of Portsmouth, Portsmouth PO1 3FX, UK
11. Brookhaven National Laboratory, Bldg 510, Upton, NY 11973, USA
12. Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile
13. 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
14. Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA
15. 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
16. 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
17. Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
18. 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
19. 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
20. 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
21. Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona), Spain; Institut de Ciències de l'Espai, IEEC-CSIC, Campus UAB, Carrer de Can Magrans, s/n, E-08193 Bellaterra, Barcelona, Spain
22. George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, and Department of Physics and Astronomy, Texas A and M University, College Station, TX 77843, USA
23. Department of Physics, IIT Hyderabad, Kandi, Telangana-502285, India
24. Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA
25. Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA; Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
26. Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, Brazil
27. Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510, USA; Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
28. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
29. Department of Astronomy, University of California, Berkeley, 501 Campbell Hall, Berkeley, CA 94720, USA; Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
30. 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
31. Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile; Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, USA
32. Australian Astronomical Observatory, North Ryde, NSW 2113, Australia
33. 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
34. Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA
35. SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
36. Department of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton BN1 9QH, UK
37. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
38. 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 09210-580, SP, Brazil
39. Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
40. National Center for Supercomputing Applications, 1205 West Clark St., Urbana, IL 61801, USA

We present a measurement of galaxy-galaxy lensing around a magnitude-limited ($$i_{AB} < 22.5$$) sample of galaxies from the Dark Energy Survey Science Verification (DES-SV) data. We split these lenses into three photometric-redshift bins from 0.2 to 0.8, and determine the product of the galaxy bias $$b$$ and cross-correlation coefficient between the galaxy and dark matter overdensity fields $$r$$ in each bin, using scales above 4 Mpc/$$h$$ comoving, where we find the linear bias model to be valid given our current uncertainties. We compare our galaxy bias results from galaxy-galaxy lensing with those obtained from galaxy clustering (Crocce et al. 2016) and CMB lensing (Giannantonio et al. 2016) for the same sample of galaxies, and find our measurements to be in good agreement with those in Crocce et al. (2016), while, in the lowest redshift bin ($$z\sim0.3$$), they show some tension with the findings in Giannantonio et al. (2016). We measure $$b\cdot r$$ to be $$0.87\pm 0.11$$, $$1.12 \pm 0.16$$ and $$1.24\pm 0.23$$, respectively for the three redshift bins of width $$\Delta z = 0.2$$ in the range $0.2<0.8$$, defined with the photometric-redshift algorithm BPZ. Using a different code to split the lens sample, TPZ, leads to changes in the measured biases at the 10-20\% level, but it does not alter the main conclusion of this work: when comparing with Crocce et al. (2016) we do not find strong evidence for a cross-correlation parameter significantly below one in this galaxy sample, except possibly at the lowest redshift bin ($$z\sim 0.3$), where we find $$r = 0.71 \pm 0.11$$ when using TPZ, and $$0.83 \pm 0.12$$ with BPZ.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• Contributing Organization: DES
• Grant/Contract Number: AC02-07CH11359
• OSTI ID: 1362055
• Report Number(s): FERMILAB-PUB--16-389-AE; arXiv:1609.08167; 1488242
• Journal Information: Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Journal Issue: 2 Vol. 473; ISSN 0035-8711
• Publisher: Royal Astronomical SocietyCopyright Statement
• Country of Publication: United States
• Language: English