activity
20132025
most citedHitomi constraints on the 3.5 keV line in the Perseus galaxy cluster

124 citations · 330 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.GA2025

Suzaku observations of outskirts of nearby clusters and groups: I. electron density and gas fraction to the virial radius

Kyoko Matsushita, Marie Kondo, Kosuke Sato +3

We present an analysis of Suzaku observations of 14 nearby galaxy clusters and groups (z < 0.06), extending radial coverage out to the virial radius (approximately r200). The sampl…

astro-ph.HE2017★ 43 cited

Temperature Structure in the Perseus Cluster Core Observed with Hitomi

Hitomi Collaboration, Felix Aharonian, Hiroki Akamatsu +192

The present paper investigates the temperature structure of the X-ray emitting plasma in the core of the Perseus cluster using the 1.8--20.0 keV data obtained with the Soft X-ray S…

astro-ph.HE2016★ 124 cited

Hitomi constraints on the 3.5 keV line in the Perseus galaxy cluster

Hitomi Collaboration, Felix A. Aharonian, Hiroki Akamatsu +215

High-resolution X-ray spectroscopy with Hitomi was expected to resolve the origin of the faint unidentified E=3.5 keV emission line reported in several low-resolution studies of va…

astro-ph.CO2015★ 20 cited

Central Mass Profiles of the Nearby Cool-core Galaxy Clusters Hydra A and A478

N. Okabe, K. Umetsu, T. Tamura +14

We perform a weak-lensing study of the nearby cool-core galaxy clusters, Hydra A () and A478 (), of which brightest cluster galaxies (BCGs) host powerful activi…

astro-ph.CO2014★ 35 cited

Universal Profiles of the Intracluster Medium from Suzaku X-Ray and Subaru Weak Lensing Obesrvations

N. Okabe, K. Umetsu, T. Tamura +16

We conduct a joint X-ray and weak-lensing study of four relaxed galaxy clusters (Hydra A, A478, A1689 and A1835) observed by both Suzaku and Subaru out to virial radii, with an aim…

astro-ph.CO2013★ 83 cited

Thermodynamics of the Coma Cluster Outskirts

A. Simionescu, N. Werner, O. Urban +10

We present results from a large mosaic of Suzaku observations of the Coma Cluster, the nearest and X-ray brightest hot, dynamically active, non-cool core system, focusing on the th…

astro-ph.CO2013★ 25 cited

Metal-mass-to-light ratios of the Perseus cluster out to the virial radius

K. Matsushita, E. Sakuma, T. Sasaki +2

We analyzed XMM-Newton data of the Perseus cluster out to 1 Mpc, or approximately half the virial radius. Using the flux ratios of Lyalpha lines of H-like Si and S to Kalpha…