Zobrazeno 1 - 10
of 3 656
pro vyhledávání: '"Kohmura, A."'
We present a systematic study of the thermodynamic properties of the intracluster medium (ICM), including the plasma conditions in the ICM, in the merging galaxy cluster A3667 using Suzaku. We analyze the X-ray spectra of the ICM between the northwes
Externí odkaz:
http://arxiv.org/abs/2408.14204
Autor:
Ninoyu, Kaito, Uchida, Yuusuke, Yamada, Shinya, Kohmura, Takayoshi, Igarashi, Taichi, Hayakawa, Ryota, Kawamura, Tenyo
We systematically investigate the variability of polarized X-rays on a timescale of a few seconds in the low/hard state of the black hole binary Cygnus X-1. The correlation between polarization degrees and angles with X-Ray intensity was analyzed usi
Externí odkaz:
http://arxiv.org/abs/2408.00980
Autor:
Nobukawa, Kumiko K., Takeda, Ayaki, Katsuda, Satoru, Tsuru, Takeshi G., Nakazawa, Kazuhiro, Mori, Koji, Uchida, Hiroyuki, Nobukawa, Masayoshi, Kurogi, Eisuke, Kishimoto, Takumi, Matsui, Reo, Aoki, Yuma, Ito, Yamato, Kuwano, Satoru, Tanaka, Tomitaka, Uenomachi, Mizuki, Matsuda, Masamune, Yamawaki, Takaya, Kohmura, Takayoshi
The upper atmosphere at the altitude of 60-110 km, the mesosphere and lower thermosphere (MLT), has the least observational data of all atmospheres due to the difficulties of in-situ observations. Previous studies demonstrated that atmospheric occult
Externí odkaz:
http://arxiv.org/abs/2407.16922
Autor:
Mori, Koji, Tomida, Hiroshi, Nakajima, Hiroshi, Okajima, Takashi, Noda, Hirofumi, Uchida, Hiroyuki, Suzuki, Hiromasa, Kobayashi, Shogo Benjamin, Yoneyama, Tomokage, Hagino, Kouichi, Nobukawa, Kumiko, Tanaka, Takaaki, Murakami, Hiroshi, Uchiyama, Hideki, Nobukawa, Masayoshi, Matsumoto, Hironori, Tsuru, Takeshi, Yamauchi, Makoto, Hatsukade, Isamu, Odaka, Hirokazu, Kohmura, Takayoshi, Yamaoka, Kazutaka, Ishida, Manabu, Maeda, Yoshitomo, Hayashi, Takayuki, Tamura, Keisuke, Boissay-Malaquin, Rozenn, Sato, Toshiki, Yoshida, Tessei, Kanemaru, Yoshiaki, Hiraga, Junko, Dotani, Tadayasu, Ozaki, Masanobu, Tsunemi, Hiroshi, Inoue, Shun, Azuma, Ryuishi, Aoki, Yuma, Asahina, Yoh, Nakamura, Shotaro, Kamei, Takamitsu, Fukuda, Masahiro, Asakura, Kazunori, Yoshimoto, Marina, Ode, Yuichi, Hakamata, Tomohiro, Aoyagi, Mio, shima, Kohei, Ito, Yamato, Aoki, Daiki, Fujisawa, Kaito, Shimizu, Yasuyuki, Higuchi, Mayu, Miyazaki, Keitaro, Kusunoki, Kohei, Otsuka, Yoshinori, Yokosu, Haruhiko, Yonemaru, Wakana, Ichikawa, Kazuhiro, Nakano, Hanako, takemoto, Reo, Matsushima, Tsukasa, Hayashida, Kiyoshi
Xtend is one of the two telescopes onboard the X-ray imaging and spectroscopy mission (XRISM), which was launched on September 7th, 2023. Xtend comprises the Soft X-ray Imager (SXI), an X-ray CCD camera, and the X-ray Mirror Assembly (XMA), a thin-fo
Externí odkaz:
http://arxiv.org/abs/2406.19911
Autor:
Suzuki, Hiromasa, Yoneyama, Tomokage, Kobayashi, Shogo B., Noda, Hirofumi, Uchida, Hiroyuki, Nobukawa, Kumiko K., Hagino, Kouichi, Mori, Koji, Tomida, Hiroshi, Nakajima, Hiroshi, Tanaka, Takaaki, Murakami, Hiroshi, Uchiyama, Hideki, Nobukawa, Masayoshi, Kanemaru, Yoshiaki, Otsuka, Yoshinori, Yokosu, Haruhiko, Yonemaru, Wakana, Nakano, Hanako, Ichikawa, Kazuhiro, Takemoto, Reo, Matsushima, Tsukasa, Yoshimoto, Marina, Aoyagi, Mio, Shima, Kohei, Aoki, Yuma, Ito, Yamato, Fukuda, Kaito, Kiyama, Honoka, Aoki, Daiki, Fujisawa, Kaito, Shimizu, Yasuyuki, Higuchi, Mayu, Fukuda, Masahiro, Sakamoto, Natsuki, Azuma, Ryuichi, Inoue, Shun, Kohmura, Takayoshi, Yamauchi, Makoto, Hatsukade, Isamu, Matsumoto, Hironori, Odaka, Hirokazu, Mizuno, Tsunefumi, Yoshida, Tessei, Maeda, Yoshitomo, Ishida, Manabu, Tsuru, Takeshi G., Yamaoka, Kazutaka, Okajima, Takashi, Hayashi, Takayuki, Hiraga, Junko S., Ozaki, Masanobu, Dotani, Tadayasu, Tsunemi, Hiroshi, Hayashida, Kiyoshi
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 field-of-view imaging with the CCD camera, Xtend. The Xtend consists of
Externí odkaz:
http://arxiv.org/abs/2406.19910
Autor:
Matsuhashi, Hiroumi, Hagino, Kouichi, Bamba, Aya, Takeda, Ayaki, Yukumoto, Masataka, Mori, Koji, Nishioka, Yusuke, Tsuru, Takeshi Go, Uenomachi, Mizuki, Ikeda, Tomonori, Matsuda, Masamune, Narita, Takuto, Suzuki, Hiromasa, Tanaka, Takaaki, Kurachi, Ikuo, Kohmura, Takayoshi, Uchida, Yusuke, Arai, Yasuo, Kawahito, Shoji
Publikováno v:
Nuclear Instruments and Methods in Physics Research section A (NIM-A) 2024
XRPIX is the monolithic X-ray SOI (silicon-on-insulator) pixel detector, which has a time resolution better than 10 $\rm{\mu}$s as well as a high detection efficiency for X-rays above 10 keV. XRPIX is planned to be installed on future X-ray satellite
Externí odkaz:
http://arxiv.org/abs/2405.05649
Autor:
Yukumoto, Masataka, Mori, Koji, Takeda, Ayaki, Nishioka, Yusuke, Yonemura, Syuto, Izumi, Daisuke, Iwakiri, Uzuki, Tsuru, Takeshi G., Kurachi, Ikuo, Hagino, Kouichi, Arai, Yasuo, Kohmura, Takayoshi, Tanaka, Takaaki, Kimura, Miraku, Fuchita, Yuta, Yoshida, Taiga, Ikeda, Tomonori
We have been developing silicon-on-insulator (SOI) pixel detectors with a pinned depleted diode (PDD) structure, named "XRPIX", for X-ray astronomy. The PDD structure is formed in a thick p-type substrate, to which high negative voltage is applied to
Externí odkaz:
http://arxiv.org/abs/2401.04365
Autor:
Shinnosuke Kurimoto, Takato Inoue, Hitoshi Aoto, Toshiki Ito, Satsuki Ito, Yoshiki Kohmura, Makina Yabashi, Satoshi Matsuyama
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract We propose a multi-frame blind deconvolution method using an in-plane rotating sample optimized for X-ray microscopy, where the application of existing deconvolution methods is technically difficult. Untrained neural networks are employed as
Externí odkaz:
https://doaj.org/article/88d0f16cbd034d8babd68139ea08b5af
Autor:
Hagino, Kouichi, Kitajima, Masatoshi, Kohmura, Takayoshi, Kurachi, Ikuo, Tsuru, Takeshi G., Yukumoto, Masataka, Takeda, Ayaki, Mori, Koji, Nishioka, Yusuke, Tanaka, Takaaki
The X-ray Silicon-On-Insulator (SOI) pixel sensor named XRPIX has been developed for the future X-ray astronomical satellite FORCE. XRPIX is capable of a wide-band X-ray imaging spectroscopy from below 1 keV to a few tens of keV with a good timing re
Externí odkaz:
http://arxiv.org/abs/2306.08716
Autor:
Mori, Koji, Tsuru, Takeshi G., Nakazawa, Kazuhiro, Ueda, Yoshihiro, Watanabe, Shin, Tanaka, Takaaki, Ishida, Manabu, Matsumoto, Hironori, Awaki, Hisamitsu, Murakami, Hiroshi, Nobukawa, Masayoshi, Takeda, Ayaki, Fukazawa, Yasushi, Tsunemi, Hiroshi, Takahashi, Tadayuki, Hornschemeier, Ann, Okajima, Takashi, Zhang, William W., Williams, Brian J., Venters, Tonia, Madsen, Kristin, Yukita, Mihoko, Akamatsu, Hiroki, Bamba, Aya, Enoto, Teruaki, Fujita, Yutaka, Furuzawa, Akihiro, Hagino, Kouichi, Ishimura, Kosei, Itoh, Masayuki, Kitayama, Tetsu, Kobayashi, Shogo, Kohmura, Takayoshi, Kubota, Aya, Mizumoto, Misaki, Mizuno, Tsunefumi, Nakajima, Hiroshi, Nobukawa, Kumiko K., Noda, Hirofumi, Odaka, Hirokazu, Ota, Naomi, Sato, Toshiki, Shidatsu, Megumi, Suzuki, Hiromasa, Takahashi, Hiromitsu, Tanimoto, Atsushi, Terada, Yukikatsu, Terashima, Yuichi, Uchida, Hiroyuki, Uchiyama, Yasunobu, Yamaguchi, Hiroya, Yatsu, Yoichi
Publikováno v:
Proc. of SPIE vol. 12181, 1218122 (2022)
In this multi-messenger astronomy era, all the observational probes are improving their sensitivities and overall performance. The Focusing on Relativistic universe and Cosmic Evolution (FORCE) mission, the product of a JAXA/NASA collaboration, will
Externí odkaz:
http://arxiv.org/abs/2303.07577