Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-06-17
Astrophys.J.578:L95,2002
Astronomy and Astrophysics
Astrophysics
Matches the version in ApJL. Equation 4 corrected. Improvements in the analysis move the cluster contours in Fig1 slightly upw
Scientific paper
10.1086/344699
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.
Huterer Dragan
White Martin
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