Table D.1

Column names and description of the entries of the main results table.

Column name Description
Name eROSITA source name
ID_SRC Source ID of detection pipeline
RA_CORR RA of the X-ray center
DEC_CORR DEC of the X-ray center
EXT Source extent in X-ray
EXT_ERR Error in source extent
EXT_LIKE Extent likelihood
DET_LIKE_0 Detection likelihood
ML_RATE_0 X-ray count rate
ML_RATE_ERR_0 error on count rate
F_CONT_BEST_COMB fcont of best optical counter part: −1, −2 for manually added systems
Z_BEST_COMB Photometric redshift of best counter part
SIGMA_Z_BEST_COMB Uncertainty of the photometric redshift
LAMBDA_BEST_COMB Richness of best counter part
ELAMBDA_BEST_COMB Uncertainty richness
SURV_BEST_COMB Survey used: −1 group catalog, 1 LS, 2 HSC
RA_OPTCEN_BEST_COMB Ra of optical center of best counter part
DEC_OPTCEN_BEST_COMB Same but DEC
SPEC_Z_BEST_COMB Spec-z
N_SPEC Number of redshifts used for spec-z
MASSPROX_BEST_COMB Approx. M500 used for richness estimate [1/h]
FLAG_OPTICAL_X_POS Value of the optical footprint map at X-ray position
MASKFRAC_3_FOOT Fraction of the area not int the optical footprint within a 3 arcmin radiuss
MASKFRAC_3_FLAGGED Similar but including flagged area due to bright star masks
MASKFRAC_R500_FOOT_BEST_COMB Same as MASKFRAC_3_FOOT but for a r_500 sized region
MASKFRAC_R500_FLAGGED_BEST_COMB Same as MASKFRAC_3_FLAGGED but for a r_500 sized region
ALPHA Dynamical state estimator alpha
BETA Dynamical state estimator beta
DELTA Dynamical state estimator delta
ELLIP Dynamical state estimator: model ellipticity
CENTERSHIFT Shift of the centre of the 2D density model with respect to X-ray position
DIST_NEXT_OPT Distance to next optical structure in the galaxy density map
DIST_NEXT_XCLUST Distance to next extent-selected eFEDS cluster
MCMF_NWAY_SECTOR Sector in fcont- pany plane according to Sect. 5.4

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