3 citations
- Kyoto UniversityJP7 papers
- Rikkyo UniversityJP7 papers
- The University of TokyoJP6 papers
- Center for Astrophysics Harvard & SmithsonianUS5 papers
- Ehime UniversityJP5 papers
- Goddard Space Flight CenterUS5 papers
- RIKEN Nishina CenterJP5 papers
- Saitama UniversityJP5 papers
- Tokyo University of ScienceJP5 papers
- California Institute of TechnologyUS4 papers
- Durham UniversityGB4 papers
- European Space Research and Technology CentreNL4 papers
7 papers
Chandra X-Ray Imaging and Spatially Resolved Spectroscopy of SN 1987A: Energy-Dependent Morphology of the Equatorial Ring
Yusuke Sakai, Shinya Yamada, Koji Mori +8
We present a systematic imaging and spatially resolved spectral study of SN 1987A using Chandra observations obtained between 1999 and 2025. By combining multiepoch ACIS and HETG d…
Chemical enrichment of the Perseus cluster core seen by XRISM/Resolve
XRISM Collaboration, Marc Audard, Hisamitsu Awaki +147
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…
Accurate Determination of Chemical Abundances near a Supermassive Black Hole
The XRISM collaboration
The metal abundances in galactic nuclei carry key information on the history of star formation and mass transfer in central regions of galaxies. X-ray fluorescence analysis is a un…
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…
Direct observation of three-neutron emission from He and the search for the trineutron
S. W. Huang, C. Lenain, Z. H. Yang +107
Three-neutron emission from He has been directly measured for the first time, following neutron knockout from a He beam at 156 MeV/nucleon. A resonance-like structure at $2…
High Spectral Resolution X-ray Observations of the Evolved Supermassive Stellar Binary System Carinae - Iron K Band Profile Revealed with XRISM
XRISM Collaboration, Marc Audard, Hisamitsu Awaki +138
The supermassive binary system, Carinae, is experiencing enormous wind-driven mass loss at a rate unparalleled in the rest of the Galaxy. Their wind-wind collision (WWC) conti…