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The 2dF Galaxy Redshift Survey: Wiener reconstruction of the cosmic web

Erdoğdu, Pirin and Lahav, Ofer and Zaroubi, Saleem and Efstathiou, George and Moody, Steve and Peacock, John A. and Colless, Matthew and Baldry, Ivan K. and Baugh, Carlton M. and Bland-Hawthorn, Joss and Bridges, Terry and Cannon, Russell and Cole, Shaun and Collins, Chris and Couch, Warrick and Dalton, Gavin and De Propris, Roberto and Driver, Simon P. and Ellis, Richard S. and Frenk, Carlos S. and Glazebrook, Karl and Jackson, Carole and Lewis, Ian and Lumsden, Stuart and Maddox, Steve and Madgwick, Darren and Norberg, Peder and Peterson, Bruce A. and Sutherland, Will and Taylor, Keith (2004) The 2dF Galaxy Redshift Survey: Wiener reconstruction of the cosmic web. Monthly Notices of the Royal Astronomical Society, 352 (3). pp. 939-960. ISSN 1365-2966. doi:10.1111/j.1365-2966.2004.07984.x.

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We reconstruct the underlying density field of the Two-degree Field Galaxy Redshift Survey (2dFGRS) for the redshift range 0.035 < z < 0.200 using the Wiener filtering method. The Wiener filter suppresses shot noise and accounts for selection and incompleteness effects. The method relies on prior knowledge of the 2dF power spectrum of fluctuations and the combination of matter density and bias parameters, however the results are only slightly affected by changes to these parameters. We present maps of the density field. We use a variable smoothing technique with two different effective resolutions: 5 and 10 h⁻¹ Mpc at the median redshift of the survey. We identify all major superclusters and voids in the survey. In particular, we find two large superclusters and two large local voids. The full set of colour maps can be viewed on the World Wide Web at∼pirin.

Item Type:Article
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URLURL TypeDescription Paper
Colless, Matthew0000-0001-9552-8075
Baugh, Carlton M.0000-0002-9935-9755
Bland-Hawthorn, Joss0000-0001-7516-4016
Ellis, Richard S.0000-0001-7782-7071
Norberg, Peder0000-0002-5875-0440
Additional Information:© 2004 RAS. Accepted 2004 May 3. Received 2004 April 30; in original form 2003 November 7. We thank Yehuda Hoffman for his useful comments. The 2dFGRS was made possible through the dedicated efforts of the staff at Anglo-Australian Observatory, both in crediting the 2dF instrument and supporting it on the telescope. PE acknowledges support from the Middle East Technical University, Ankara, Turkey, the Turkish Higher Education Council and Overseas Research Trust. OL and JAP acknowledge the Particle Physics and Astronomy Research Council (PPARC) for their Senior Research Fellowships. This research was conducted utilizing the supercomputer COSMOS at the Department of Applied Mathematics and Theoretical Physics (DAMTP), Cambridge.
Funding AgencyGrant Number
Middle East Technical UniversityUNSPECIFIED
Council of Higher Education (Turkey)UNSPECIFIED
Overseas Research TrustUNSPECIFIED
Particle Physics and Astronomy Research Council (PPARC)UNSPECIFIED
Subject Keywords:methods: statistical, galaxies: distances and redshifts, large-scale structure of Universe
Issue or Number:3
Record Number:CaltechAUTHORS:20200713-181755933
Persistent URL:
Official Citation:Pirin Erdoğdu, Ofer Lahav, Saleem Zaroubi, George Efstathiou, Steve Moody, John A. Peacock, Matthew Colless, Ivan K. Baldry, Carlton M. Baugh, Joss Bland-Hawthorn, Terry Bridges, Russell Cannon, Shaun Cole, Chris Collins, Warrick Couch, Gavin Dalton, Roberto De Propris, Simon P. Driver, Richard S. Ellis, Carlos S. Frenk, Karl Glazebrook, Carole Jackson, Ian Lewis, Stuart Lumsden, Steve Maddox, Darren Madgwick, Peder Norberg, Bruce A. Peterson, Will Sutherland, Keith Taylor, (the 2dFGRS Team), The 2dF Galaxy Redshift Survey: Wiener reconstruction of the cosmic web, Monthly Notices of the Royal Astronomical Society, Volume 352, Issue 3, August 2004, Pages 939–960,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104367
Deposited By: Rebecca Minjarez
Deposited On:15 Jul 2020 14:57
Last Modified:16 Nov 2021 18:31

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