#Description of column names for SDSSRM sample

XCS_NAME - XCS name of the matched XCS source
RA_rm - Right ascension of the redMaPPer cluster
Dec_rm - Declination of the redMaPPer cluster
RA_ext_xcs - Right ascension of the matched XCS source
Dec_ext_xcs - Declination of the matched XCS source
Z_LAMBDA - redMaPPer determined photometric redshift
R_LAMBDA - Scale radius within with redMaPPer richness is measured, R_LAMBDA = 1.0*h^-1 Mpc(LAMBDA/100)**0.2
MEM_MATCH_ID - redMaPPer catalogue ID
EXPOSURE - XMM exposure time at the position of the redMaPPer coordinate
OBSID - XMM observation ID (defined as the OBSID with the greatest exposure time)
LAMBDA_CHISQ - redMaPPer determined richness
LAMBDA_CHISQ_E - error on LAMBDA_CHISQ
DISTANCE - distance from the centre of the XMM image to the redMaPPer coordinates
SDSS-XCS-matched - is the source visually matched to the listed XCS source (Y/N)
kT - X-ray measured temperature within r500
kT_m - negative 1-sigma error on kT
kT_p - positive 1-sigma error on kT
Lx - X-ray luminosity (bolometric) within r500
Lx_m - negative 1-sigma error on Lx
Lx_p - positive 1-sigma error on Lx
Lx52 - X-ray luminosity (0.5-2.0 keV rest-frame) within r500
Lx52_m - negative 1-sigma error on Lx52
Lx52_p - positive 1-sigma error on Lx52
(0.15-1r500)kT - Core excluded X-ray measured temperature within (0.15-1.0)r500
(0.15-1r500)kT_m - negative 1-sigma error on (0.15-1r500)kT
(0.15-1r500)kT_p - positive 1-sigma error on (0.15-1r500)kT
(0.15-1r500)Lx - Core excluded X-ray luminosity (bolometric) within (0.15-1.0)r500
(0.15-1r500)Lx_m - negative 1-sigma error on (0.15-1r500)Lx
(0.15-1r500)Lx_p - positive 1-sigma error on (0.15-1r500)Lx
(0.15-1r500)Lx52 - Core excluded X-ray luminosity (0.5-2.0 keV rest-frame) within (0.15-1.0)r500
(0.15-1r500)Lx52_m - negative 1-sigma error on (0.15-1r500)Lx52
(0.15-1r500)Lx52_p - positive 1-sigma error on (0.15-1r500)Lx52
r2500_kT - X-ray measured temperature within r2500
r2500kT_m - negative 1-sigma error on r2500kT
r2500kT_p - positive 1-sigma error on r2500kT
r2500Lx - X-ray luminosity (bolometric) within r2500
r2500Lx_m - negative 1-sigma error on r2500Lx
r2500Lx_p - positive 1-sigma error on r2500Lx
r2500Lx52 - X-ray luminosity (0.5-2.0 keV rest-frame) within r2500
r2500Lx52_m - negative 1-sigma error on r2500Lx52
r2500Lx52_p - positive 1-sigma error on r2500Lx52
Lx52_upper - Luminosity (0.5-2.0 keV) upper limit for undetected SDSSRM clusters
Lx52_fixed_Tx - X-ray luminosity (0.5-2.0 keV rest-frame) assuming a fixed temperature estimated from the luminosity-temperature relation
Lx52_fixed_Tx_m - negative 1-sigma error on Lx52_fixed_Tx
Lx52_fixed_Tx_p - positive 1-sigma error on Lx52_fixed_Tx
Tx,vol - The cluster is within the volume limited redshift range of SDSS redMapper (0.1 < z < 0.35) and has an average temperature error of <25%
Targeted - Is the cluster specifically the target of an XMM observation (only given for Tx,vol clusters)
Serendipious - Was the cluster detected serendipitously, i.e., was not specifically targeted by XMM (only given for Tx,vol clusters)