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Limitations of Bayesian Evidence Applied to Cosmology
G. Efstathiou
There has been increasing interest by cosmologists in applying Bayesian techniques, such as Bayesian Evidence, for model selection. A typical example is in assessing whether observ…
The 2dF Galaxy Redshift Survey: Power-spectrum analysis of the final dataset and cosmological implications
S. Cole, W. J. Percival, J. A. Peacock +28
We present a power spectrum analysis of the final 2dF Galaxy Redshift Survey, employing a direct Fourier method. The sample used comprises 221,414 galaxies with measured redshifts.…
The 2dF Galaxy Redshift Survey: luminosity functions by density environment and galaxy type
Darren J. Croton, Glennys R. Farrar, Peder Norberg +26
We use the 2dF Galaxy Redshift Survey to measure the dependence of the bJ-band galaxy luminosity function on large-scale environment, defined by density contrast in spheres of radi…
The 2dF Galaxy Redshift Survey: stochastic relative biasing between galaxy populations
Vivienne Wild, John A. Peacock, Ofer Lahav +26
It is well known that the clustering of galaxies depends on galaxy type.Such relative bias complicates the inference of cosmological parameters from galaxy redshift surveys, and is…
Galaxy groups in the 2dFGRS: the group-finding algorithm and the 2PIGG catalogue
V. R. Eke, C. M. Baugh, S. Cole +25
The construction of a catalogue of galaxy groups from the 2-degree Field Galaxy Redshift Survey (2dFGRS) is described. Groups are identified by means of a friends-of-friends percol…
Galaxy groups in the 2dFGRS: the luminous content of the groups
V. R. Eke, C. S. Frenk, C. M. Baugh +25
The 2dFGRS Percolation-Inferred Galaxy Group (2PIGG) catalogue of ~29000 objects is used to study the luminous content of galaxy systems of various sizes. Mock galaxy catalogues co…