Weak Lensing as a Calibrator of the Cluster Mass-Temperature Relation
Astrophysics
2009-11-07 v2
Abstract
The abundance of clusters at the present epoch and weak gravitational lensing shear both constrain roughly the same combination of the power spectrum normalization sigma_8 and matter energy density Omega_M. The cluster constraint further depends on the normalization of the mass-temperature relation. Therefore, combining the weak lensing and cluster abundance data can be used to accurately calibrate the mass-temperature relation. We discuss this approach and illustrate it using data from recent surveys.
Cite
@article{arxiv.astro-ph/0206292,
title = {Weak Lensing as a Calibrator of the Cluster Mass-Temperature Relation},
author = {Dragan Huterer and Martin White},
journal= {arXiv preprint arXiv:astro-ph/0206292},
year = {2009}
}
Comments
Matches the version in ApJL. Equation 4 corrected. Improvements in the analysis move the cluster contours in Fig1 slightly upwards. No changes in the conclusions