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The 2dF Galaxy Redshift Survey: the luminosity function of cluster galaxies
Roberto De Propris, M. Colless, S. Driver +27
We have determined the composite luminosity function (LF) for galaxies in 60 clusters from the 2dF Galaxy Redshift Survey. The LF spans the range , and is…
The 2dF Galaxy Redshift Survey: correlation functions, peculiar velocities and the matter density of the Universe
E. Hawkins, S. Maddox, S. Cole +27
We present a detailed analysis of the two-point correlation function, from the 2dF Galaxy Redshift Survey (2dFGRS). We estimate the redshift-space correlation function, xi(s), from…
The Halo Occupation Distribution and the Physics of Galaxy Formation
Andreas A. Berlind, David H. Weinberg, Andrew J. Benson +7
The halo occupation distribution (HOD) describes the bias between galaxies and dark matter by specifying (a) the probability P(N|M) that a halo of virial mass M contains N galaxies…
Forming Globular Cluster Systems in a Semi-analytic Scheme
Michael A. Beasley, Carlton M. Baugh, Duncan A. Forbes +2
We apply the semi-analytical galaxy formation code of Cole et al. to investigate the formation of globular cluster (GC) systems in hierarchical clustering scenarios. The nature of…
The Effects of Photoionization on Galaxy Formation -- III: Environmental Dependence in the Luminosity Function
A. J. Benson, C. S. Frenk, C. M. Baugh +2
Using semi-analytic modeling techniques, we calculate the luminosity function of galaxy populations residing in cold dark matter halos of different mass. We pay particular attentio…
Galaxy formation using halo merger histories taken from N-body simulations
John C. Helly, Shaun Cole, Carlos S. Frenk +3
We develop a hybrid galaxy formation model which uses outputs from an N-body simulation to follow the merger histories (or ``merger trees'') of dark matter halos and treats baryoni…
Simulating the formation of cosmic structure
Carlos S. Frenk
A timely combination of new theoretical ideas and observational discoveries has brought about significant advances in our understanding of cosmic evolution. Computer simulations ha…
Forming Globular Cluster Systems Semi-analytically
M. A. Beasley, C. M. Baugh, D. A. Forbes +2
We describe a scheme for the formation of globular cluster systems in early-type galaxies using a semi-analytic model of galaxy formation. Operating within a Lambda CDM cosmology,…
Stable clustering, the halo model and nonlinear cosmological power spectra
R. E. Smith, J. A. Peacock, A. Jenkins +7
We present the results of a large library of cosmological N-body simulations, using power-law initial spectra. The nonlinear evolution of the matter power spectra is compared with…
Parameter constraints for flat cosmologies from CMB and 2dFGRS power spectra
Will J. Percival, Will Sutherland, John A. Peacock +24
We constrain flat cosmological models with a joint likelihood analysis of a new compilation of data from the cosmic microwave background (CMB) and from the 2dF Galaxy Redshift Surv…
Studying large-scale structure with the 2dF Galaxy Redshift Survey
J. A. Peacock, M. Colless, I. Baldry +25
The 2dF Galaxy Redshift Survey is the first to observe more than 100,000 redshifts. This allows precise measurements of many of the key statistics of galaxy clustering, in particul…
A new upper limit on the total neutrino mass from the 2dF Galaxy Redshift Survey
O. Elgaroy, O. Lahav, W. J. Percival +27
We constrain f_nu = Omega_nu / Omega_m, the fractional contribution of neutrinos to the total mass density in the Universe, by comparing the power spectrum of fluctuations derived…
The luminosity functions and stellar masses of galactic disks and spheroids
A. J. Benson, C. S. Frenk, R. M. Sharples
We present a method to obtain quantitative measures of galaxy morphology and apply it to a spectroscopic sample of field galaxies in order to determine the luminosity and stellar m…
The 2dF Galaxy Redshift Survey: The environmental dependence of galaxy star formation rates near clusters
Ian Lewis, Michael Balogh, Roberto De Propris +30
We have measured the equivalent width of the H-alpha emission line for 11006 galaxies brighter than M_b=-19 (LCDM) at 0.05<z<0.1 in the 2dF Galaxy Redshift Survey (2dF), in the fie…
The evolution of galaxy mass in hierarchical models
C. M. Baugh, A. J. Benson, S. Cole +2
Advances in extragalactic astronomy have prompted the development of increasingly realistic models which aim to describe the formation and evolution of galaxies. We review the phil…
On the Formation of Globular Cluster Systems in a Hierarchical Universe
M. A. Beasley, C. M. Baugh, Duncan A. Forbes +2
We have investigated the formation of globular cluster (GC) systems in the fiducial semi-analytic galaxy formation model of Cole et al. We assume that GCs are formed at high-redshi…
A Comparison of Gas Dynamics in SPH and Semi-analytic Models of Galaxy Formation
John C. Helly, Shaun Cole, Carlos S. Frenk +4
We compare the results of two techniques used to calculate the evolution of cooling gas during galaxy formation: Smooth Particle Hydrodynamics (SPH) simulations and semi-analytic m…
The 2dF Galaxy Redshift Survey: The dependence of galaxy clustering on luminosity and spectral type
P. Norberg, C. M. Baugh, E. Hawkins +25
We investigate the dependence of galaxy clustering on luminosity and spectral type using the 2dF Galaxy Redshift Survey (2dFGRS). Spectral types are assigned using the principal co…
The Inner Structure of LambdaCDM Halos I: A Numerical Convergence Study
C. Power, J. F. Navarro, A. Jenkins +5
We present a comprehensive set of convergence tests which explore the role of various numerical parameters on the equilibrium structure of a simulated dark matter halo. We report r…