############################################ ### Version 1.2 April 2013 ### ### Please reference these papers: ### For the photometric catalogue: McCracken et al. 2012, A&A, 544, 156 and Capak et al. 2007, ApJS, 172, 99 ### For the photo-z + physical parameters: Ilbert et al. 2013, accepted in A&A, astro-ph/1301.3157 # FILE LIST: UVISTA_COSMOS_psfhomo_chi2_v1.1_22_04_13_v1.fits : full photometric catalogue including medium bands from H.J. McCracken photoz_uvista_v1.2.dat : photo-z and physical parameter catalogue (this header) pdz_uvista_v1.2.fits : redshift Probability Distribution Function # Any question for the photometric multi-color catalogue: contact H.J. McCracken hjmcc_at_iap.fr # Any question for the photo-z catalogue + physical parameters: contact O. Ilbert olivier.ilbert_at_lam.fr #################################################### # OBJECT IDENTIFICATION from H.J. McCracken catalogue #################################################### ### 339384 sources detected on the YJHK chi2 image ### effective area 1.48 deg2 (after having removed the masked areas) # 1 Id # 2 alpha J2000, in deg # 3 delta J2000, in deg # 4 flag 0:good areas, >=1 masked in optical (P. Capak) or K band (H.J. McCracken) #################################################### # Le Phare PHOTOMETRIC REDSHIFTS # derived using a method similar to Ilbert et al. (2009) #################################################### # 5 photo-z z= zPDF if galaxy (column 7, median of the likelihood distribution) # z= 0 if star # z= 9.99 if Xray source # z= -99 if masked area # 6 type Given even in masked regions (useful for people who want to use objects with photo-z=-99 # type=0 if galaxy # type=1 if star (mainly based on the chi2, only for objects detected in NIR or 3.6) # type=2 if Xray source # type=-9 if failure in the fit (most of these objects have less than 1 band) ########################## # Best fit obtained with the galaxy templates # # warning: every source has a redshift, regardless of the type or if it is in a masked area or not # # 7 zPDF photo-z defined as the median of the likelihood distribution # 8 zPDF_l68 lower limit, 68% confidence level (a comparison photo-z/spec-z shows that these errors could be underestimated by a factor 0.25*I-3.8 at I>20 and 1.2 at I<20) # 9 zPDF_u68 upper limit, 68% confidence level (a comparison photo-z/spec-z shows that these errors could be underestimated by a factor 0.25*I-3.8 at I>20 and 1.2 at I<20) # 10 zMinChi2 photo-z defined as the minimum of the chi2 distribution # 11 chi2_best reduced chi2 (-99 if less than 3 filters) for zMinChi2 # 12 zp_2 second photo-z solution if a second peak is detected with P>5% in the PDF # 13 chi2_2 reduced chi2 for the second photo-z solution # 14 NbFilt Number of filters used in the fit ########################## # Best fit obtained with the AGN templates # # !!!! Warning: this value is only informative: no correction for variability is applied. # # 15 zq photoz for the AGN library. # 16 chiq reduced chi2 ########################## # Best fit obtained with the STAR templates # # 17 chis reduced chi2 #################################################### # PHYSICAL PROPERTIES # derived from the BC03 best-fit templates at zPDF (Chabrier IMF; cosmo:70,0.3,0.7; BC03 tau models described in Ilbert et al. 2010). #################################################### # Absolute magnitudes # 18 MNUV NUV galex # 19 MB B Subaru # 20 MR r+ Subaru # 21 MJ J VISTA # Dust corrected color at zPDF # 22 M(NUV)-M(R) corrected from dust-extinction. # Classification quiescent/star-forming # 23 classification 0:quiescent/1:star-forming based on the NUV-R/R-J # Mass # 24 mass_med log(Stellar mass / Msun) from BC03 best-fit template. median of the PDF # 25 mass_med_min68 lower limit, 68% confidence level # 26 mass_med_max68 upper limit, 68% confidence level #################################################### # PHOTOMETRY #################################################### # Broad band photometry from the H.J. McCracken catalogue in AB system # The full catalogue including medium bands is also public UVISTA_COSMOS_psfhomo_chi2_v1.1_22_04_13_v1.fits # This photometry is the original photometry. # In order to generate the photo-z input catalogue, we corrected for the MW extinction, for residual PSF variations band-to-band, and we applied a shift of -0.369 mag in the B band as done for previous COSMOS photometric catalogues (these corrections are not included here). # 27 Kauto K band apparent magnitude, MAG_AUTO, no PSF homogeneisation # 28 eKauto error associated to Kauto # 29 Uaper3 U band apparent magnitude, aperture magnitude 3" # 30 eUaper3 error associated to Uaper3 # 31 Baper3 B band apparent magnitude, aperture magnitude 3" # 32 eBaper3 error associated to Baper3 # 33 Vaper3 V band apparent magnitude, aperture magnitude 3" # 34 eVaper3 error associated to Vaper3 # 35 Raper3 R band apparent magnitude, aperture magnitude 3" # 36 eRaper3 error associated to Raper3 # 37 Iaper3 I band apparent magnitude, aperture magnitude 3" # 38 eIaper3 error associated to Iaper3 # 39 Zaper3 Z band apparent magnitude, aperture magnitude 3" # 40 eZaper3 error associated to Zaper3 # 41 Yaper3 Y band apparent magnitude, aperture magnitude 3" # 42 eYaper3 error associated to Yaper3 # 43 Japer3 J band apparent magnitude, aperture magnitude 3" # 44 eJaper3 error associated to Japer3 # 45 Haper3 H band apparent magnitude, aperture magnitude 3" # 46 eHaper3 error associated to Haper3 # 47 Kaper3 K band apparent magnitude, aperture magnitude 3" # 48 eKaper3 error associated to Kaper3