SPT PS » History » Version 13
Nikhel Gupta, 10/15/2014 08:43 AM
| 1 | 13 | Nikhel Gupta | h1. SPT 150 GHz luminosity function and SZE contamination |
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| 2 | 11 | Nikhel Gupta | |
| 3 | 6 | Nikhel Gupta | h2. Cluster and galaxy sample |
| 4 | 3 | Nikhel Gupta | |
| 5 | 2 | Nikhel Gupta | 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. |
| 6 | 1 | Nikhel Gupta | |
| 7 | 1 | Nikhel Gupta | h3. SPT AGN sample |
| 8 | 6 | Nikhel Gupta | |
| 9 | 9 | Nikhel Gupta | 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. |
| 10 | 9 | Nikhel Gupta | |
| 11 | 9 | Nikhel Gupta | 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. |