Weak lensing Analysis of X-Ray-selected XXL Galaxy Groups and Clusters
  with Subaru HSC Data
  We present a weak-lensing analysis of X-ray galaxy groups and clusters
selected from the XMM-XXL survey using the first-year data from the Hyper
Suprime-Cam (HSC) Subaru Strategic Program. Our joint weak-lensing and X-ray
analysis focuses on 136 spectroscopically confirmed X-ray-selected systems at
0.031 < z < 1.033 detected in the 25sqdeg XXL-N region. We characterize the
mass distributions of individual clusters and establish the concentration-mass
(c-M) relation for the XXL sample, by accounting for selection bias and
statistical effects, and marginalizing over the remaining mass calibration
uncertainty. We find the mass-trend parameter of the c-M relation to be \beta =
-0.07 \pm 0.28 and the normalization to be c200 = 4.8 \pm 1.0 (stat) \pm 0.8
(syst) at M200=10^{14}Msun/h and z = 0.3. We find no statistical evidence for
redshift evolution. Our weak-lensing results are in excellent agreement with
dark-matter-only c-M relations calibrated for recent LCDM cosmologies. The
level of intrinsic scatter in c200 is constrained as \sigma(\ln[c200]) < 24%
(99.7% CL), which is smaller than predicted for the full population of LCDM
halos. This is likely caused in part by the X-ray selection bias in terms of
the relaxation state. We determine the temperature-mass (Tx-M500) relation for
a subset of 105 XXL clusters that have both measured HSC lensing masses and
X-ray temperatures. The resulting Tx-M500 relation is consistent with the
self-similar prediction. Our Tx-M500 relation agrees with the XXL DR1 results
at group scales, but has a slightly steeper mass trend, implying a smaller mass
scale in the cluster regime. The overall offset in the Tx-M500 relation is at
the $1.5\sigma$ level, corresponding to a mean mass offset of (34\pm 20)%. We
also provide bias-corrected, weak-lensing-calibrated M200 and M500 mass
estimates of individual XXL clusters based on their measured X-ray
temperatures.
