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The 2dF Galaxy Redshift Survey: voids and hierarchical scaling models

Croton, Darren J. ; Colless, Matthew ; Gaztañaga, Enrique ; Baugh, Carlton M. ; Norberg, Peder ; Baldry, I. K. ; Bland-Hawthorn, J. ; Bridges, T. ; Cannon, R. ; Cole, S. ; Collins, C. ; Couch, W. ; Dalton, G. ; De Propris, R. ; Driver, S. P. ; Efstathiou, G. ; Ellis, R. S. ; Frenk, C. S. ; Glazebrook, K. ; Jackson, C. ; Lahav, O. ; Lewis, I. ; Lumsden, S. ; Maddox, S. ; Madgwick, D. ; Peacock, J. A. ; Peterson, B. A. ; Sutherland, W. ; Taylor, K.

In: Monthly Notices of the Royal Astronomical Society, 2004, vol. 352, no. 3, p. 828-836

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    Titre
    • The 2dF Galaxy Redshift Survey: voids and hierarchical scaling models
    Auteur
    • Croton, Darren J.. Max-Planck-Institut für Astrophysik, D-85740 Garching, Germany
    • Colless, Matthew. Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia
    • Gaztañaga, Enrique. INAOE, Astrofisica, Tonantzintla, Apdo Postal 216 y 51, Puebla 7200, Mexico
    • Baugh, Carlton M.. Department of Physics, University of Durham, South Road, Durham DH1 3LE
    • Norberg, Peder. ETHZ Institut für Astronomie, HPF G3.1, ETH Hönggerberg, CH-8093 Zürich, Switzerland
    • Baldry, I. K.. Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21118-2686, USA
    • Bland-Hawthorn, J.. Anglo-Australian Observatory, PO Box 296, Epping, NSW 2111, Australia
    • Bridges, T.. Department of Physics, Queen's University, Kingston, Ontario, K7L 3N6, Canada
    • Cannon, R.. Anglo-Australian Observatory, PO Box 296, Epping, NSW 2111, Australia
    • Cole, S.. Department of Physics, University of Durham, South Road, Durham DH1 3LE
    • Collins, C.. Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Birkenhead L14 1LD
    • Couch, W.. Department of Astrophysics, University of New South Wales, Sydney, NSW 2052, Australia
    • Dalton, G.. Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH
    • De Propris, R.. Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia
    • Driver, S. P.. Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia
    • Efstathiou, G.. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA
    • Ellis, R. S.. Department of Astronomy, California Institute of Technology, Pasadena, CA 91025, USA
    • Frenk, C. S.. Department of Physics, University of Durham, South Road, Durham DH1 3LE
    • Glazebrook, K.. Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21118-2686, USA
    • Jackson, C.. CSIRO Australia Telescope National Facility, PO Box 76, Epping, NSW 1710, Australia
    • Lahav, O.. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA
    • Lewis, I.. Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH
    • Lumsden, S.. Department of Physics, University of Leeds, Woodhouse Lane, Leeds LS2 9JT
    • Maddox, S.. School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD
    • Madgwick, D.. Department of Astronomy, University of California, Berkeley, CA 94720, USA
    • Peacock, J. A.. Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ
    • Peterson, B. A.. Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia
    • Sutherland, W.. Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ
    • Taylor, K.. Department of Astronomy, California Institute of Technology, Pasadena, CA 91025, USA
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Monthly Notices of the Royal Astronomical Society, 2004, vol. 352, no. 3, p. 828-836. Blackwell Science Ltd
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:294863
    Summary
    We measure the redshift-space reduced void probability function (VPF) for 2dFGRS volume-limited galaxy samples covering the absolute magnitude range M b J−5 log10h=−18 to −22. Theoretically, the VPF connects the distribution of voids to the moments of galaxy clustering of all orders, and can be used to discriminate clustering models in the weakly non-linear regime. The reduced VPF measured from the 2dFGRS is in excellent agreement with the paradigm of hierarchical scaling of the galaxy clustering moments. The accuracy of our measurement is such that we can rule out, at a very high significance, popular models for galaxy clustering, including the lognormal distribution. We demonstrate that the negative binomial model gives a very good approximation to the 2dFGRS data over a wide range of scales, out to at least 20 h−1 Mpc. Conversely, the reduced VPF for dark matter in a Λ cold dark matter (ΛCDM) universe does appear to be lognormal on small scales but deviates significantly beyond ∼4 h−1 Mpc. We find little dependence of the 2dFGRS reduced VPF on galaxy luminosity. Our results hold independently in both the North and South Galactic Pole survey regions