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 astro-ph.GAShow all

5 papers · 1 filter

astro-ph.GA2026

Diagnosing the Fe line complex of the intracluster medium by XRISM high-resolution spectroscopy

K. Fukushima, L. Hirata, N. Y. Yamasaki +17

We aim to test the validity of the CIE framework in the ICM by performing line diagnostics based mainly on resolved Fe-K emission lines. Methods. We analyse Resolve full-array spec…

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.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.GA2022★ 8 cited

XMM-Newton view of the shock heating in an early merging cluster, CIZA J1358.94750

Y. Omiya, K. Nakazawa, K. Matsushita +10

CIZA J1358.9-4750 is a nearby galaxy cluster in the early phase of a major merger. The two-dimensional temperature map using XMM-Newton EPIC-PN observation confirms the existence o…