COSMOS Spectroscopic Merged Catalogue README - version 1.3 Description of columns: Column 0, "RA": The RA coordinates of the object targeted in degrees. Column 1, "DEC": The DEC coordinates of the object targeted in degrees. Column 2, "Z_SPEC": The spectroscopic redshift. Column 3, "Z_SOURCE": The source of the spectroscopic redshift, as the source of the redshift can be multiple surveys the source number can be a combination of the following values: ; 2MASS* - 1 ; 2dF* - 2 ; 3DHST* - 4 ; AzTEC* (M Yun) - 8 ; MOIRCS* (M. Onodere) - 16 ; FAST* - 32 ; PRIMUS* - 64 ; FMOS* (Rosemberg) - 128 ; FORS2* (Johan Comparat) - 256 ; SDSS* - 512 ; Gemini-S* (M. Balough) - 1024 ; HST_GRISM* (Schawinksi/Brusa) - 2048 ; MOSFIRE* (A. Shapley) - 4096 ; WFC3_grism* (Schawinksi/Brusa)- 8192 ; zBRIGHT* - 16384 ; GAMA (Davies et al) - 32768 ; Magellan IMACS spectrum - 65536 All the sources marked with '*' are redshifts taken from the COSMOS spectroscopic catalogue collated by Mara Salvato (mara@mpe.mpg.de), this provides the majority of redshifts in our sample. We also merge the COSMOS catalogue with the GAMA independant analysis mostly based on (16384, 512, 64), plus a few extra VVDS sources (Davies et al. 2014) and Magellan Spectra of X-ray sources (Salvato et al. 2009). To make this the redshifts have been prioritised in order of quality flags and the highest priority redshift is used. Matches between different redshift surveys in the COSMOS catalogue were made within 0.5" and we use their parings for our catalogue. For matching between other catalogues we match within 1", but do check galaxies with larger seperations or ones that disagree within 1". Column 4, "Z_QUAL": The quality flag (Q) is designated using the method from Colless et al. (2001) method (as the GAMA database uses these values). The quality flag (Q), is ranked on a five-point scale, with the interpretation: Q = 1 means no redshift could be estimated; Q = 2 means a possible, but doubtful, redshift estimate; Q = 3 means a probable redshift (notionally 90 per cent confidence); Q = 4 means a reliable redshift (notionally 99 per cent confidence); Q = 5 means a reliable redshift and a high-quality spectrum. Note that this quality parameter is determined entirely by the subjective judgement of the user. A small number of galaxies have a Q = -1 which means no quality flag was available. Column 5, "OBJID" Object ID where the name depends on the source of the spectroscopic measurement. Column 6, "NOTES" The COSMOS catalogue provides some extra information for several of its surveys, to conserve this information we have added this column with the following key: 1 - COSMOS photometric redshift not consistant to within 0.1(1+z) 2 - No COSMOS photometric redshift available 3 - COSMOS photometric redshift consistant to within 0.1(1+z) 4 - One line wither Halpha or [OII] 3727 best guess 5 - One line wither Halpha or [OII] 3727 best guess, only consistant with COSMOS photo-z after redshift switched to alternate 6- Broad Line AGN 7 - COSMOS and GAMA reshift have clashed, GAMA value given. Other info: An additional study with Spitzer IRS spectra was found (Fu et al. 2010) but this was found to potentially only add up to three redshifts. Information on selection functions/completness can be found in the seperate pdf document. For where PRIMUS and zBRIGHT disagree we do the following: 1) Compare all the conflicts with Davies GAMA catalogue 2) For galaxies the Davies classify as reliable and agree to 0.05 with zBRIGHT use zBRIGHT 3)for zUse = 1 in GAMA catalogue 3.1) if zGen = 1 or 4 or 5 then manual check required 3.2) for zUse = 1 then if zGen = 2 (auto-z of COSMOS and PRIMIUS agree) or 3 (PRIMUS and zCOS agree - but found cases here that don't) or 6 use GAMA value and add zCOSMOS or PRIMUS id if agree to within 10% and <0.1. Same for zGen=7 as GAMA have eyeballed to explin differences 3.3) zGen = 9, GAMA did not have secure zBright redshift so assume that is correct 4) for zUse = 2, all zGen = 6 will use GAMA value 5) for zUse = 3, GAMA have marked unreliable redshift, will downgrade all The following are manual decisions on PRIMUS and zBright conflict - the number is the COSMOS catalogue group ID 13708 - Davies had -0.0017 and zBRIGHT=1.1 but many photo studies agreed with photo-z, and rough primus agreement 12284 - zBRIGHT (0.98) and PRIMUS (0.85) (no GAMA) disagreed, went with PRIMUS as zCOSMOS 16526 - zBright = 0.862, Davies 0.834 went with GAMA. 13553 - zBright =0.97, Davies = 0.12, went with zBright as Davies did not have photo-z and one potential autoz solution was 0.97 13347 - zBright=0.27, Davies = 0.295 gone with Davies but pretty close agreement 15038 - zBright=0.36, Davies = 0.33 gone with Davies but pretty close agreement 16342 - zBright=0.89, Davies = 0.96 gone with zBright from visual inspection 11726 - zBright=0.28, Davies = 0.298 gone with Davies but pretty close agreement 14989 - Davies reposrts zCosmos had same balue in past, will go with Davies 14868 - zBright = 0.60, Davies 0.31 went with GAMA (and agrees with PRIMUS) 10196 - zBright = 0.77, Davies 0.71 went with GAMA (and agrees with PRIMUS) 1477 - zBright=0.95, Davies = 1.06 gone with zBright from visual inspection 16184 - zBright=0.27, Davies = 0.00 gone with zBright from visual inspection 11544 - zBright = 0.63, Davies 0.89 went with GAMA 5017 - zBright = 1.03, Davies 1.09 went with GAMA 8200 - zBright = 0.72, Davies 0.53 went with GAMA 7137 - zBright = 1.15, Davies 0.22 went with GAMA (and agrees with PRIMUS) 9941 - zBright = 0.72, Davies 0.67 went with GAMA 12913 - zBright = 0.4, Davies 0.16 went with GAMA (and agrees with PRIMUS) 9772 - zBright = 0.93, Davies 1.02 went with GAMA (and agrees with PRIMUS) 9743 - zBright = 1.19, Davies 1.10 went with GAMA (and agrees with PRIMUS) 14222 - zBright = 0.2, Davies 0.35 went with GAMA (and agrees with PRIMUS) 8401 - zBright = 0.96, Davies 1.02 went with GAMA 1124 - zBright = 1.25, Davies 1.19 went with GAMA 9349 - zBright = 0.90, Davies 0.83 went with zBright from visual inspection 10353 - zBright = 1.25, Davies 1.19 went with zBright from visual inspection 7937 - zBright = 0.35, Davies 0.28 went with GAMA 7968 - zBright = 0.34, Davies 0.12 went with GAMA 11533 - zBright = 0.38, Davies 0.17 went with GAMA 14776 - zBright = 0.25, Davies 0.08 went with zBright from visual inspection 13016 - zBright = 0.9, Davies 0.07 went with GAMA 7294 - zBright = 0.95, Davies 0.29 went with zBright 9901 - zBright = 0.38, Davies 0.30 went with zBright 14532 - zBright = 0.66, Davies 0.89 went with GAMA 11338 - zBright = 0.09, Davies 0.78 went with zBright 11315 - zBright = 0.88, Davies 0.27 went with GAMA 8217 - zBright = 0.33, Davies 0.68 went with GAMA 8187 - zBright - 0.69, Davies 0.26 went with GAMA 15761 - zBright = 0.2 Davies 0.3 went with GAMA 1038 - zBright = 0.51 Davies 0.83 went with GAMA 15601 - zBright = 0.82, Davies 0.69 went with GAMA 10704 - zBright = 0.09, Davies 0.43 went with GAMA 15068 - zBright = 0.89, Davies 0.41 went with zCOSMOS 16268 - zBright = 0.89, Davies 0.08 went with GAMA 13064 - zBright = 0.46, Davies 0.08 went with GAMA 8049 - zBright = 0.62, Davies 0.24 went with GAMA 10148 - zBright = 0.37, Davies 0.17 went with GAMA 3804 - zBright = 1.33, Davies 0.32 went with GAMA (and agrees with PRIMUS) 16004 - zBright = 0.6, Davies 0.22 went with GAMA 11008 - zBright = 0.37, Davies 0.62 went with GAMA 15742 - zBright=0.22, Davies 1.07 went with zBright 16688- zBright=4.12, Davies 0.56 went with GAMA 9358 - zBright=1.2, Davies 0.50 went with GAMA (and agrees with PRIMUS) 13704 - zBright=0.12, Davies 0.74 went with zCOSMOS (and agrees with PRIMUS) 16576 - zBright=0.42, Davies 0.58 went with GAMA 13581 - zBright=0.0, Davies 1.07 went with zBright 16528 - zBright=0.34, Davies 0.44 went with GAMA 13506 - zBright=0.89, Davies=1.16 went with zCOSMOS 5155 - zBright=0.73, Davies 0.23 went with zBright 16378 - zBright=0.52, Davies 0.64 went with zBright 16372 - zBright=0.26, Davies 0.4 went with zBright 10291 - zBright=0.35, Davies 0.3 went with zBright 10175 - zBright=0.68, Davies 0.74 went GAMA 8191 - zBright=0.079, Davies 0.9 went with zBright 16115 - zBright=0.54, Davies 0.35 went with GAMA 6849 - zBright=0.21, Davies 0.30 went with GAMA 12779 - zBright=0.25, Davies 0.68 went with GAMA 11178 - zBright=1.26, Davies 0.36 went with GAMA 14233 - zBright=0.35, Davies 0.60 went with zBright 12611 - zBright=0.59, Davies 0.22 went with GAMA 9436 - zBright=0.12, Davies 0.98 went with GAMA 10908 - zBright=0.06, Davies 0.87 went with GAMA 4898 - zBright=4.44, Davies 0.66 went with zBright 4903 - zBright=1.26, Davies 0.30 went with zBright 9395 - zBright=0.93, Davies 0.66 went with zBright 7841 - zBright=0.73, Davies=0.59 went with GAMA 13871 - zBright=0.83, Davies=0.98 went with GAMA 13866 - zBright=0.34, Davies 0.47 went with zBright Too many differences between PRIMUS and other sources, so as PRIMUS is low-res we went through and if difference in redshifts is less than 0.2, went with the alternative spectruem. There were also too many conflicts between GAMA and COSMOS, will assume GAMA is correct if alternative is only from zBRIGHT and/or PRIMUS, as published catalogue, multiple sources have been used and have often been eye-balled. Other Conflicts: Group ID COSMOS 848685, PRIMUS=0.36 vs zBRIGHT=2.724 went with PRIMAS as consistant with GAMA re-analysis Group ID 16647- COSMOS 848685, PRIMUS=0.36 vs zBRIGHT=2.724 went with PRIMAS as consistant with GAMA re-analysis Group ID 15494- COSMOS 1541937, PRIMUs=0.3143 vs zBRIGHT=0.23547 went with zBRIGHT as matches manual GAMA and looks good spectrum Group ID 15486- COSMOS 1539554, PRIMUS=0.73, vs zBRIGHT=0.8753went with zBRIGHT as matched GAMA Group ID 16644- COSMOS 1782830, PRIMUS=0.54, vs zBRIGHT=0.64 went with zBRIGHT as matched GAMA Group ID 15481- COSMOS 1550849, PRIMUS=0.42, vs zBRIGHT=0.37 went with zBRIGHT as matched GAMA Group ID 12178- COSMOS 1117007, PRIMUS, GAMA and zBRIGHT all disagree so lowering to Q=2 with zBRIGHT Group ID 16642- COSMOS 1760301, PRIMUS=0.81, vs zBRIGHT=0.92 went with zBRIGHT as matched GAMA Group ID 15471- COSMOS 1551054, PRIMUS=0.73, vs zBRIGHT=0.92 went with zBRIGHT as matched GAMA Group ID 16635- COSMOS 1774692, PRIMUS=0.69, vs zBRIGHT=0.76 went with zBRIGHT as matched GAMA Group ID 13718- COSMOS 1337213, PRIMUS=0.16, vs zBRIGHT=0.13 went with zBRIGHT as matched GAMA Group ID 12160- COSMOS 1098226, PRIMUS=0.48, vs zBRIGHT=0.54 went with zBRIGHT as matched GAMA Group ID 10636- COSMOS 875391, PRIMUS=0.21, vs zBRIGHT=0.31 went with zBRIGHT as matched GAMA Group ID 16630- COSMOS 1774337, PRIMUS=0.73, vs zBRIGHT=0.80 went with zBRIGHT as matched GAMA