20 citations · 41 across the 3 of their papers we have counts for
3 papers
SUZAKU Observation of a New Merging Group of Galaxies at a Filamentary Junction
Hajime Kawahara, Hiroshi Yoshitake, Takahiro Nishimichi +1
We report on a new merging group of galaxies, Suzaku J1552+2739 at z ~ 0.08 revealed by a SUZAKU observation. The group was found by observing a junction of galaxy filaments optica…
Extracting Galaxy Cluster Gas Inhomogeneity from X-ray Surface Brightness: A Statistical Approach and Application to Abell 3667
Hajime Kawahara, Erik D. Reese, Tetsu Kitayama +2
Our previous analysis indicates that small-scale fluctuations in the intracluster medium (ICM) from cosmological hydrodynamic simulations follow the lognormal distribution. In orde…
Systematic Errors in the Hubble Constant Measurement from the Sunyaev-Zel'dovich effect
Hajime Kawahara, Tetsu Kitayama, Shin Sasaki +1
The Hubble constant estimated from the combined analysis of the Sunyaev-Zel'dovich effect and X-ray observations of galaxy clusters is systematically lower than those from other me…