activity
20152026
most citedStructured ionized winds shooting out from a quasar at relativistic speeds

49 citations · 288 across the 57 of their papers we have counts for

collaborators
Showing astro-ph.GAShow all

12 papers · 1 filter

astro-ph.GA2026

Chemical enrichment of the Perseus cluster core seen by XRISM/Resolve

XRISM Collaboration, Marc Audard, Hisamitsu Awaki +143

The intracluster medium (ICM) is rich in chemical elements, produced by core-collapse (SNcc) and Type Ia supernovae (SNIa) over the last 12 Gyr. Whereas cluster outskirts are…

astro-ph.GA2026

XRISM Reveals a Kinematically Coherent Core System of the Nearby Cool-Core Cluster Abell 2199

Kazunori Suda, Kyoko Matsushita, Kosuke Sato +14

We present the results of a deep 251 ks XRISM/Resolve observation of the cool core of the galaxy cluster Abell 2199. From the integrated spectrum of the central Reso…

astro-ph.GA2026★ 3 cited

A Fast, Hot Wind from a Nuclear Starburst

XRISM Collaboration, Marc Audard, Hisamitsu Awaki +137

Galaxies with intense star formation often host multiphase, galaxy-scale winds powered by supernovae and fast stellar winds. These are strong enough to disrupt the star-forming int…

astro-ph.GA2025

A XRISM/Resolve view of the dynamics in the hot gaseous atmosphere of M87

XRISM Collaboration, M. Audard, H. Awaki +138

The XRISM/Resolve microcalorimeter directly measured the gas velocities in the core of the Virgo Cluster, the closest example of AGN feedback in a cluster. This proximity allows us…

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

Revisiting thermodynamics at the outskirts of the Perseus cluster with Suzaku: importance of modeling the Hot Galactic gas

Kyoko Matsushita, Hayato Sugiyama, Masaki Ueda +5

The thermodynamic properties of the intracluster medium (ICM) at the outskirts of galaxy clusters provide valuable insights into the growth of the dark matter halo and the heating…

astro-ph.GA2024★ 4 cited

Revisiting the abundance pattern and charge-exchange emission in the M82 centre

K. Fukushima, S. B. Kobayashi, K. Matsushita

The interstellar medium (ISM) in starburst galaxies contains plenty of chemical elements synthesised by core-collapse supernova explosions. By measuring the abundances of these met…

astro-ph.GA2023

The soft X-ray background with Suzaku II: Supervirial temperature bubbles?

Hayato Sugiyama, Masaki Ueda, Kotaro Fukushima +4

Observations of the hot X-ray emitting interstellar medium in the Milky Way are important for studying the stellar feedback and understanding the formation and evolution of galaxie…

astro-ph.GA2023★ 6 cited

O, Ne, Mg, and Fe Abundances in Hot X-Ray-emitting Halos of Galaxy Clusters, Groups, and Giant Early-type Galaxies with XMM-Newton RGS Spectroscopy

Kotaro Fukushima, Shogo B. Kobayashi, Kyoko Matsushita

Chemical elements in the hot medium permeating early-type galaxies, groups, and clusters make them an excellent laboratory for studying metal enrichment and cycling processes in th…

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…

astro-ph.GA2022★ 11 cited

The soft X-ray background with Suzaku: I. Milky Way halo

Masaki Ueda, Hayato Sugiyama, Shogo B. Kobayashi +4

We present measurements of the soft X-ray background emission for 130 Suzaku observations at and obtained from 2005 to 2015, covering nearly…

astro-ph.GA2022★ 17 cited

Chemical enrichment in the cool core of the Centaurus cluster of galaxies

Kotaro Fukushima, Shogo B. Kobayashi, Kyoko Matsushita

Here we present results from over 500 kiloseconds Chandra and XMM-Newton observations of the cool core of the Centaurus cluster. We investigate the spatial distributions of the O,…