3 citations · 6 across the 7 of their papers we have counts for
7 papers
The Geometry of Ultra-Fast Outflows Probed by Soft X-ray Variability in PDS 456
Riki Sato, Kouichi Hagino, Toshiya Iwata +20
Constraining the location and geometry of ultra-fast outflows (UFOs) is essential for identifying where they are launched and how they are accelerated. We investigate the soft X-ra…
XRISM Discovery of Multiple Ionized Fe-K Emission and Absorption Components in Centaurus A
Taishu Kayanoki, Yasushi Fukazawa, Junjie Mao +13
We present the first clear detection of ionized Fe-K emission and absorption components in the nearby radio galaxy Centaurus A, revealed by the high-resolution XRISM/Resolve detect…
Development of Solar Flare X-ray Polarimeter with Micro-Pixel CMOS Sensors
Kouichi Hagino, Tatsuaki Kato, Toshiya Iwata +10
We are developing an X-ray polarimeter using micro-pixel CMOS sensors for solar flare X-ray polarimetry. The system consists of a 2.5-m pixel CMOS image sensor with a 12.8$\time…
XRISM analysis of the complex Fe K line in Centaurus A
David Bogensberger, Yuya Nakatani, Tahir Yaqoob +14
We analyze the high-resolution XRISM/Resolve spectrum of the Fe K emission line of the nearest active galactic nucleus, in Centaurus A. The line features two narrow and resolved…
Imaging reconstruction method on X-ray data of CMOS polarimeter combined with coded aperture
Tsubasa Tamba, Hirokazu Odaka, Taihei Watanabe +7
X-ray polarization is a powerful tool for unveiling the anisotropic characteristics of high-energy celestial objects. We present a novel imaging reconstruction method designed for…
Multi-epoch X-ray spectral analysis of Centaurus A: revealing new constraints on iron emission line origins
Toshiya Iwata, Atsushi Tanimoto, Hirokazu Odaka +3
We conduct X-ray reverberation mapping and spectral analysis of the radio galaxy Centaurus A to uncover its central structure. We compare the light curve of the hard X-ray continuu…
Development of the X-ray polarimeter using CMOS imager: polarization sensitivity of a pixel CMOS sensor
Toshiya Iwata, Kouichi Hagino, Hirokazu Odaka +10
We are developing an imaging polarimeter by combining a fine-pixel CMOS image sensor with a coded aperture mask as part of the cipher project, aiming to achieve X-ray polarimetry i…