Locations of Satellite Galaxies in the Two-Degree Field Galaxy Redshift Survey
Figure 1
Probability distributions for the locations of satellite galaxies in the 2dFGRS. Top. Results for our first sample, where the APM scans of the plates, the selection criteria from [7], and all host-satellite pairs are used in the calculations. Bottom. Results for our second sample, where the SuperCOSMOS scans of the plates, the selection criteria from [11], and all host-satellite pairs are used in the calculations. Left. Observed differential probability distribution (data points with error bars). Dotted lines show the expectation for a uniform (i.e., isotropic) distribution. Also shown are the mean satellite location and the confidence level at which the test rejects the uniform distribution. Right. Observed cumulative probability distribution (solid lines) and the expectation for a uniform distribution (dotted lines). Also shown are the median satellite location and the confidence level at which the KS test rejects the uniform distribution.
