activity
20052026
most citedThe Quiescent Intracluster Medium in the Core of the Perseus Cluster

500 citations · 3.2k across the 71 of their papers we have counts for

collaborators
Showing astro-ph.COShow all

22 papers · 1 filter

astro-ph.CO2025

Constraining gas motion and non-thermal pressure beyond the core of the Abell 2029 galaxy cluster with XRISM

XRISM Collaboration, Marc Audard, Hisamitsu Awaki +137

We report a detailed spectroscopic study of the gas dynamics and hydrostatic mass bias of the galaxy cluster Abell 2029, utilizing high-resolution observations from XRISM Resolve.…

astro-ph.CO2021★ 43 cited

The metal content of the hot atmospheres of galaxy groups

Fabio Gastaldello, Aurora Simionescu, Francois Mernier +4

Galaxy groups host the majority of matter and more than half of all the galaxies in the Universe. Their hot ( K), X-ray emitting intra-group medium (IGrM) reveals emission li…

astro-ph.CO2016★ 14 cited

X-Ray observations of a subhalo associated with the NGC 4839 group infalling toward the Coma cluster

Toru Sasaki, Kyoko Matsushita, Kosuke Sato +1

We report X-ray observations of the dark subhalo associated with the merging group of NGC 4839 in the Coma cluster. The X-ray image exhibits an elongated tail toward the s…

astro-ph.CO2015★ 1 cited

Suzaku observations of subhalos in the Coma cluster

Toru Sasaki, Kyoko Matsushita, Kosuke Sato +1

We observed three massive subhalos in the Coma cluster with {\it Suzaku}. These subhalos, labeled "ID 1", "ID 2", and "ID 32", were detected with a weak-lensing survey using the Su…

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…