48 citations · 100 across the 5 of their papers we have counts for
5 papers
Radial profile and log-normal fluctuations of intra-cluster medium as an origin of systematic bias of spectroscopic temperature
Hajime Kawahara, Yasushi Suto, Tetsu Kitayama +4
The origin of the recently reported systematic bias in the spectroscopic temperature of galaxy clusters is investigated using cosmological hydrodynamical simulations. We find that…
Systematic bias in the estimate of cluster mass and the fluctuation amplitude from cluster abundance statistics
Mamoru Shimizu, Tetsu Kitayama, Shin Sasaki +1
We revisit the estimate of the mass fluctuation amplitude, sigma_8, from the observational X-ray cluster abundance. In particular, we examine the effect of the systematic differenc…
Monte-Carlo Modeling of Non-Gravitational Heating Processes in Galaxy Clusters
Mamoru Shimizu, Tetsu Kitayama, Shin Sasaki +1
We consider non-gravitational heating effects on galaxy clusters on the basis of the Monte-Carlo modeling of merging trees of dark matter halos combined with the thermal evolution…
Mass-temperature relation of galaxy clusters: implications from the observed luminosity-temperature relation and X-ray temperature function
Mamoru Shimizu, Tetsu Kitayama, Shin Sasaki +1
We derive constraints on the mass-temperature relation of galaxy clusters from their observed luminosity-temperature relation and X-ray temperature function. Adopting the isotherma…
Reliability of merger tree realizations of dark halos in the Monte-Carlo modeling of galaxy formation
Mamoru Shimizu, Tetsu Kitayama, Shin Sasaki +1
We examine the reliability of the merger trees generated for the Monte-Carlo modeling of galaxy formation. In particular we focus on the cold gas fraction predicted from the merger…