activity
20222026
most citedXMM-Newton view of the shock heating in an early merging cluster, CIZA J1358.94750

8 citations · 22 across the 13 of their papers we have counts for

collaborators
Showing 2025Show all

6 papers · 1 filter

astro-ph.GA2025

XRISM-Subaru views of Abell 754: Energetic ICM Motions Revealed by XRISM/Resolve

Yuki Omiya, Nobuhiro Okabe, Kazuhiro Nakazawa +4

We present high-resolution X-ray spectroscopy of the merging cluster Abell~754 using \textit{XRISM}/Resolve. In GO1 phase, \textit{XRISM}/Resolve observed Abell 754 in two deep poi…

astro-ph.HE2025

Origin and Evolution of the Structure in the Head-Tail Radio Galaxy of Abell 3322

Kohei Kurahara, Takuya Akahori, Takumi Ohmura +8

A head-tail galaxy is thought to be a radio galaxy with bent active galactic nuclei (AGN) jets interacting with the intracluster medium (ICM). Study of head-tail galaxies provides…

astro-ph.GA2025

Comparing XRISM cluster velocity dispersions with predictions from cosmological simulations: are feedback models too ejective?

XRISM Collaboration, Marc Audard, Hisamitsu Awaki +147

The dynamics of the intra-cluster medium (ICM), the hot plasma that fills galaxy clusters, are shaped by gravity-driven cluster mergers and feedback from supermassive black holes (…

astro-ph.GA2025

XRISM Observations of The Prototypical Cold Front in Abell 3667

Yuki Omiya, Yuto Ichinohe, Kazuhiro Nakazawa +13

We present high-resolution X-ray spectroscopy of the merging galaxy cluster Abell 3667 with \textit{XRISM}/Resolve. Two observations, targeting the cluster X-ray core and the proto…

astro-ph.CO2025

XRISM-Subaru views of Abell 754: an off-axis, near-line-of-sight merging cluster

Nobuhiro Okabe, Yuki Omiya, Kazuhiro Nakazawa +4

We report a weak-lensing (WL) mass measurement for the merging cluster Abell 754 and impose constraints on the merger trajectory. The trajectory analysis adopts a two-body model wi…

astro-ph.HE2025

XRISM/Resolve View of Abell 2319: Turbulence, Sloshing, and ICM Dynamics

XRISM Collaboration, Marc Audard, Hisamitsu Awaki +132

We present results from XRISM/Resolve observations of the core of the galaxy cluster Abell 2319, focusing on its kinematic properties. The intracluster medium (ICM) exhibits temper…