Planck List of High Redshift Source Candidates (PHZ) Catalog Definitions

Overview

The Planck list of high-redshift source candidates (PHZ) is a list of 2151 sources located in the cleanest 26% of the sky and identified as point sources exhibiting an excess in the submillimeter compared to their environment. It has been built using the 48 months Planck data at 857, 545, 353 and 217 GHz combined with the 3 THz IRAS data, as it is described in Planck-2015-XXXIX. These sources are considered as high-z source candidates (z>1.5-2), given the very low contamination by Galactic cirrus, and their typical colour-colour ratio. A subsample of the PHZ list has already been followed-up with Herschel, and chararcterized as overdensities of red galaxies for more than 93% of the population, and as strongly lensed galaxies in 3% of the cases, as detailed in Planck-2014-XXVIII.

Name Intype Units Description
NAME char Source name
GLON double deg Galactic longitude
GLAT double deg Galactic latitude
ra double deg Right Ascension (J2000)
dec double deg Declination (J2000)
SNR_X545 double S/N in the 545 GHz excess map
SNR_D857 double S/N in the 857 GHz cleaned map
SNR_D545 double S/N in the 545 GHz cleaned map
SNR_D353 double S/N in the 353 GHz cleaned map
GAU_MAJOR_AXIS double arcmin FWHM along the major axis of the elliptical Gaussian
GAU_MAJOR_AXIS_SIG double arcmin 1 sigma uncertainty of the FWHM along the major axis
GAU_MINOR_AXIS double arcmin FWHM along the minor axis of the elliptical Gaussian
GAU_MINOR_AXIS_SIG double arcmin 1 sigma uncertainty of the FWHM along the minor axis
GAU_POSITION_ANGLE double rd Position angle of the elliptical Gaussian, defined as the clockwise angle between the Galactic plane orientation and the orientation of the major axis
GAU_POSITION_ANGLE_SIG double rd 1 sigma uncertainty of the position angle
FLUX_CLEAN_857 double Jy Flux density of the source at 857 GHz
FLUX_CLEAN_857_SIG_SKY double Jy 1 sigma uncertainty at 857 GHz due to sky confusion
FLUX_CLEAN_857_SIG_DATA double Jy 1 sigma uncertainty at 857 GHz due to measurement error
FLUX_CLEAN_857_SIG_GEOM double Jy 1 sigma uncertainty at 857 GHz due to elliptical Gaussian fit accuracy
FLUX_CLEAN_545 double Jy Flux density of the source at 545 GHz
FLUX_CLEAN_545_SIG_SKY double Jy 1 sigma uncertainty at 545 GHz due to sky confusion
FLUX_CLEAN_545_SIG_DATA double Jy 1 sigma uncertainty at 545 GHz due to measurement error
FLUX_CLEAN_545_SIG_GEOM double Jy 1 sigma uncertainty at 545 GHz due to elliptical Gaussian fit accuracy
FLUX_CLEAN_353 double Jy Flux density of the source at 353 GHz
FLUX_CLEAN_353_SIG_SKY double Jy 1 sigma uncertainty at 353 GHz due to sky confusion
FLUX_CLEAN_353_SIG_DATA double Jy 1 sigma uncertainty at 353 GHz due to measurement error
FLUX_CLEAN_353_SIG_GEOM double Jy 1 sigma uncertainty at 353 GHz due to elliptical Gaussian fit accuracy
FLUX_CLEAN_217 double Jy Flux density of the source at 217 GHz
FLUX_CLEAN_217_SIG_SKY double Jy 1 sigma uncertainty at 217 GHz due to sky confusion
FLUX_CLEAN_217_SIG_DATA double Jy 1 sigma uncertainty at 217 GHz due to measurement error
FLUX_CLEAN_217_SIG_GEOM double Jy 1 sigma uncertainty at 217 GHz due to elliptical Gaussian fit accuracy
PROB_COLCOL double Colour-colour selection probability
EBV_MEAN double Mean extinction E(B − V)xgal within the source PSF
EBV_APER double Aperture estimate of the extinction E(B − V)xgal within the source PSF
EBV_APER_SIG double 1 sigma uncertainty of the aperture extinction E(B − V)xgal within th
ZPHOT_25K double Submm photometric redshift estimate with Txgal = 25 K
ZPHOT_25K_LOW double Lower limit of the 68 % confidence level on ZPHOT_25K
ZPHOT_25K_UP double Upper limit of the 68 % confidence level on ZPHOT_25K
ZPHOT_25K_CHI2 double Reduced chi-squared of the best fit on ZPHOT_25K
ZPHOT_30K double Submm photometric redshift estimate with Txgal = 30 K
ZPHOT_30K_LOW double Lower limit of the 68 % confidence level on ZPHOT_30K
ZPHOT_30K_UP double Upper limit of the 68 % confidence level on ZPHOT_30K
ZPHOT_30K_CHI2 double Reduced chi-squared of the best fit on ZPHOT_30K
ZPHOT_35K double Submm photometric redshift estimate with Txgal = 35 K
ZPHOT_35K_LOW double Lower limit of the 68 % confidence level on ZPHOT_35K
ZPHOT_35K_UP double Upper limit of the 68 % confidence level on ZPHOT_35K
ZPHOT_35K_CHI2 double Reduced chi-squared of the best fit on ZPHOT_35K
ZPHOT_40K double Submm photometric redshift estimate with Txgal = 40 K
ZPHOT_40K_LOW double Lower limit of the 68 % confidence level on ZPHOT_40K
ZPHOT_40K_UP double Upper limit of the 68 % confidence level on ZPHOT_40K
ZPHOT_40K_CHI2 double Reduced chi-squared of the best fit on ZPHOT_40K
ZPHOT_45K double Submm photometric redshift estimate with Txgal = 45 K
ZPHOT_45K_LOW double Lower limit of the 68 % confidence level on ZPHOT_45K
ZPHOT_45K_UP double Upper limit of the 68 % confidence level on ZPHOT_45K
ZPHOT_45K_CHI2 double Reduced chi-squared of the best fit on ZPHOT_45K
ZPHOT_50K double Submm photometric redshift estimate with Txgal = 50 K
ZPHOT_50K_LOW double Lower limit of the 68 % confidence level on ZPHOT_50K
ZPHOT_50K_UP double Upper limit of the 68 % confidence level on ZPHOT_50K
ZPHOT_50K_CHI2 double Reduced chi-squared of the best fit on ZPHOT_50K
LFIR_25K double Lsun FIR luminosity estimate with Txgal = 25 K
LFIR_25K_LOW double Lsun Lower limit of the 68 % confidence level on LFIR_25K
LFIR_25K_UP double Lsun Upper limit of the 68 % confidence level on LFIR_25K
LFIR_30K double Lsun FIR luminosity estimate with Txgal = 30 K
LFIR_30K_LOW double Lsun Lower limit of the 68 % confidence level on LFIR_30K
LFIR_30K_UP double Lsun Upper limit of the 68 % confidence level on LFIR_30K
LFIR_35K double Lsun FIR luminosity estimate with Txgal = 35 K
LFIR_35K_LOW double Lsun Lower limit of the 68 % confidence level on LFIR_35K
LFIR_35K_UP double Lsun Upper limit of the 68 % confidence level on LFIR_35K
LFIR_40K double Lsun FIR luminosity estimate with Txgal = 40 K
LFIR_40K_LOW double Lsun Lower limit of the 68 % confidence level on LFIR_40K
LFIR_40K_UP double Lsun Upper limit of the 68 % confidence level on LFIR_40K
LFIR_45K double Lsun FIR luminosity estimate with Txgal = 45 K
LFIR_45K_LOW double Lsun Lower limit of the 68 % confidence level on LFIR_45K
LFIR_45K_UP double Lsun Upper limit of the 68 % confidence level on LFIR_45K
LFIR_50K double Lsun FIR luminosity estimate with Txgal = 50 K
LFIR_50K_LOW double Lsun Lower limit of the 68 % confidence level on LFIR_50K
LFIR_50K_UP double Lsun Upper limit of the 68 % confidence level on LFIR_50K
SFR_25K double Msun/yr Star Formation Rate estimate with Txgal = 25 K
SFR_25K_LOW double Msun/yr Lower limit of the 68 % confidence level on SFR_25K
SFR_25K_UP double Msun/yr Upper limit of the 68 % confidence level on SFR_25K
SFR_30K double Msun/yr Star Formation Rate estimate with Txgal = 30 K
SFR_30K_LOW double Msun/yr Lower limit of the 68 % confidence level on SFR_30K
SFR_30K_UP double Msun/yr Upper limit of the 68 % confidence level on SFR_30K
SFR_35K double Msun/yr Star Formation Rate estimate with Txgal = 35 K
SFR_35K_LOW double Msun/yr Lower limit of the 68 % confidence level on SFR_35K
SFR_35K_UP double Msun/yr Upper limit of the 68 % confidence level on SFR_35K
SFR_40K double Msun/yr Star Formation Rate estimate with Txgal = 40 K
SFR_40K_LOW double Msun/yr Lower limit of the 68 % confidence level on SFR_40K
SFR_40K_UP double Msun/yr Upper limit of the 68 % confidence level on SFR_40K
SFR_45K double Msun/yr Star Formation Rate estimate with Txgal = 45 K
SFR_45K_LOW double Msun/yr Lower limit of the 68 % confidence level on SFR_45K
SFR_45K_UP double Msun/yr Upper limit of the 68 % confidence level on SFR_45K
SFR_50K double Msun/yr Star Formation Rate estimate with Txgal = 50 K
SFR_50K_LOW double Msun/yr Lower limit of the 68 % confidence level on SFR_50K
SFR_50K_UP double Msun/yr Upper limit of the 68 % confidence level on SFR_50K
XFLAG_PLANCK char Planck band detections
XFLAG_HERSCHEL int Herschel detection flag: 1 if present in the Herschel follow-up programme