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The 2dF Galaxy Redshift Survey: Wiener Reconstruction of the Cosmic Web
Pirin Erdogdu, Ofer Lahav, Saleem Zaroubi +27
We reconstruct the underlying density field of the 2 degree Field Galaxy Redshift Survey (2dFGRS) for the redshift range 0.035<z<0.200 using the Wiener Filtering method. The Wiener…
The 2dF Galaxy Redshift Survey: Clustering properties of radio galaxies
Manuela Magliocchetti, Steve J. Maddox, Ed Hawkins +24
The clustering properties of local, S_{1.4 GHz} > 1 mJy, radio sources are investigated for a sample of 820 objects drawn from the joint use of the FIRST and 2dF Galaxy Redshift su…
Galaxy ecology: groups and low-density environments in the SDSS and 2dFGRS
Michael Balogh, Vince Eke, Chris Miller +34
We analyse the observed correlation between galaxy environment and H-alpha emission line strength, using volume-limited samples and group catalogues of 24968 galaxies drawn from th…
The Inner Structure of LambdaCDM Halos III: Universality and Asymptotic Slopes
Julio F. Navarro, Eric Hayashi, Chris Power +6
We investigate the mass profile of LambdaCDM halos using a suite of numerical simulations spanning five decades in halo mass, from dwarf galaxies to rich galaxy clusters. Our analy…
The Inner Structure of LCDM Halos II: Halo Mass Profiles and LSB Rotation Curves
E. Hayashi, J. F. Navarro, C. Power +6
We use a set of high-resolution cosmological N-body simulations to investigate the inner mass profile of galaxy-sized cold dark matter (CDM) halos. These simulations extend the tho…
IRAS PSCz v.s. 1.2-Jy Velocity and Density Fields: A Spherical Harmonics Comparison
Luis Teodoro, Enzo Branchini, Carlos Frenk
We have used the two IRAS redshift surveys, 1.2-Jy (Fisher et al 1995) and PSCz (Saunders et al 2000), to model the linear velocity fields within a redshift of 8,000 km/s and have…
Heating of Galactic Disks by Infalling Satellites
A. J. Benson, C. G. Lacey, C. S. Frenk +2
We develop an analytic model to calculate the rate at which galaxy disks are heated by dark matter substructures orbiting in their halos. The model takes into account the internal…
The 2dF Galaxy Redshift Survey: Final Data Release
Matthew Colless, Bruce A. Peterson, Carole Jackson +25
The 2dF Galaxy Redshift Survey (2dFGRS) has obtained spectra for 245591 sources, mainly galaxies, brighter than a nominal extinction-corrected magnitude limit of b_J=19.45. Reliabl…
Momentum transfer across shear flows in Smoothed Particle Hydrodynamic simulations of galaxy formation
T. Okamoto, A. Jenkins, V. R. Eke +2
We investigate the evolution of angular momentum in SPH simulations of galaxy formation, paying particular attention to artificial numerical effects. We find that a cold gas disc f…
The Properties of Spiral Galaxies: Confronting Hierarchical Galaxy Formation Models with Observations
Eric F. Bell, Carlton M. Baugh, Shaun Cole +2
We compare the properties of local spiral galaxies with the predictions of the Cole et al. semi-analytic model of hierarchical galaxy formation, in order to gain insight into the b…
The 2dF Galaxy Redshift Survey: galaxy clustering per spectral type
D. S. Madgwick, E. Hawkins, O. Lahav +25
We have calculated the two-point correlation functions in redshift space, xi(sigma,pi), for galaxies of different spectral types in the 2dF Galaxy Redshift Survey. Using these corr…