Galaxy clusters {sigma}-T relationship

This is a sample of 149 galaxy clusters for which both the X-ray determined temperature T of the intracluster gas and the optical measured velocity dispersion {sigma} of the...本数据集涵盖149个星系团（galaxy clusters）样本，所有样本均同时具备通过X射线测得的星系团内气体（intracluster gas）温度T，以及通过光学测量得到的速度弥散度（velocity dispersion）{σ}……