SPT 150 GHz luminosity function and SZE contamination¶

Cluster and galaxy sample¶

We build luminosity function from the SPT AGNs (at 150 and 90 GHz) and SUMSS galaxy catalog (at 843 MHz). We use MCXC catalog of galaxy clusters with a total number of 1734 clusters out of which 139 and 333 clusters are there in SPT and SUMSS region respectively.

SPT AGN sample¶

There are 4769 SPT point sources in the present catalog (all_fields_list_brady_astrom_corrected.txt) with information about the S/N as well as Flux (in mJy). Out of these point sources we chose those which have counterparts in the SUMSS catalog within the positional uncertainty of the SPT point sources at 3-sigma level.

The positional uncertainty is sigma^2 = sigma_sys^2 + ((FWHM_beam)/S2N)^2, where the FWHM is 1.6' at 90 GHz, 1' at 150 GHz and 0.8' at 220 GHz. Also, sigma_sys is about 10". The 3-sigma level is chosen by plotting the surface density of the SUMSS galaxies at different sigma levels as in the figure below.