activity
20242026
collaborators

7 papers

astro-ph.HE2026

Resolving the Fe K Doublet of the Galactic Center Molecular Cloud G0.11-0.11 with XRISM

Stephen DiKerby, Shuo Zhang, Kumiko Nobukawa +3

Fe K line emission from Galactic center molecular clouds can be produced either via fluorescence after illumination by an X-ray source or by cosmic ray ionization. Unparalleled…

astro-ph.HE2025

The unusual spectrum of the X-ray transient source XRISM J174610.8-290021 near the Galactic center

A. Yoshimoto, S. Yamauchi, M. Nobukawa +20

The Galactic center region was observed with the XRISM X-ray observatory during the performance verification phase in 2024 and a point-like X-ray source was detected with the X-ray…

astro-ph.IM2025

In-orbit Performance of the Soft X-ray Imaging Telescope Xtend aboard XRISM

Hiroyuki Uchida, Koji Mori, Hiroshi Tomida +62

We present a summary of the in-orbit performance of the soft X-ray imaging telescope Xtend onboard the XRISM mission, based on in-flight observation data, including first-light cel…

astro-ph.IM2025

New CCD Driving Technique to Suppress Anomalous Charge Intrusion from Outside the Imaging Area for Soft X-ray Imager of Xtend onboard XRISM

Hirofumi Noda, Mio Aoyagi, Koji Mori +22

The Soft X-ray Imager (SXI) is an X-ray CCD camera of the Xtend system onboard the X-Ray Imaging and Spectroscopy Mission (XRISM), which was successfully launched on September 7, 2…

astro-ph.IM2025

Initial operations of the Soft X-ray Imager onboard XRISM

Hiromasa Suzuki, Tomokage Yoneyama, Shogo B. Kobayashi +52

XRISM (X-Ray Imaging and Spectroscopy Mission) is an astronomical satellite with the capability of high-resolution spectroscopy with the X-ray microcalorimeter, Resolve, and wide f…

astro-ph.IM2025

Soft X-ray Imager of the Xtend system onboard XRISM

Hirofumi Noda, Koji Mori, Hiroshi Tomida +57

The Soft X-ray Imager (SXI) is the X-ray charge-coupled device (CCD) camera for the soft X-ray imaging telescope Xtend installed on the X-ray Imaging and Spectroscopy Mission (XRIS…