Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Hiromichi Okon"'
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 2, p 147 (2024)
Recent X-ray studies of starburst galaxies have found that charge exchange (CX) commonly occurs between outflowing hot plasma and cold gas, possibly from swept-up clouds. However, the total CX flux and the regions where CX occurs have been poorly und
Externí odkaz:
https://doaj.org/article/61477e43574045e09e7efe4269a84d34
Autor:
Takuma Kokusho, Masumichi Seta, Hiromichi Okon, Takaaki Tanaka, Takeshi Go Tsuru, Randall K. Smith, Hiroyuki Uchida
The physical origin of the overionized recombining plasmas (RPs) in supernova remnants (SNRs) has been attracting attention because its understanding provides new insight into SNR evolution. However, the process of the overionization, although it has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7ed0ff3a5c860be6f0b03c95bd5a2f7
http://arxiv.org/abs/2108.05944
http://arxiv.org/abs/2108.05944
Autor:
Takashi Sako, Jin Sato, Koki Okazaki, Kazunori Asakura, Kazutaka Yamaoka, Hirofumi Noda, Yukino Urabe, Masanobu Ozaki, Makoto Yamauchi, Takeshi Go Tsuru, Masayuki Yoshida, Shotaro Sakuma, Takayoshi Kohmura, Tessei Yoshida, Yusuke Nishioka, Shogo B. Kobayashi, Hideki Uchiyama, Maho Hanaoka, Kumiko K. Nobukawa, Yoshiaki Kanemaru, K. Mori, Tomokage Yoneyama, Kouichi Hagino, Mariko Saito, Isamu Hatsukade, Kengo Hattori, Ayami Ishikura, Toshiyuki Takaki, Junko S. Hiraga, Yuki Amano, Hironori Matsumoto, Hiroyuki Uchida, Hiroshi Nakajima, Hiroshi Tsunemi, Kiyoshi Hayashida, Masayoshi Nobukawa, Hiroshi Murakami, Hiroshi Tomida, Y. Terada, Takaaki Tanaka, Tadayasu Dotani, Hiromichi Okon, Hikari Kashimura
Publikováno v:
Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray.
We report current status of developing Soft X-ray Imager (SXI), the X-ray CCD camera onboard X-Ray Imaging and Spectroscopy Mission (XRISM). Four flight model (FM) CCDs have been selected considering several items including energy resolution at 5.9ke
Autor:
Hiroyuki Uchida, Toshiyuki Takaki, Akira Kashimura, Jin Sato, Hideki Uchiyama, Yukino Urabe, Shogo B. Kobayashi, Koki Okazaki, Yoshiaki Kanemaru, Ayami Ishikura, Takeshi Go Tsuru, Shotaro Sakuma, Kengo Hattori, Hironori Matsumoto, Kazunori Asakura, Junko S. Hiraga, Takashi Sako, Hiroshi Nakajima, Tomokage Yoneyama, Mariko Saito, Hirofumi Noda, Kumiko K. Nobukawa, Hiromichi Okon, Hiroshi Murakami, Hiroshi Tomida, Yuki Amano, Kiyoshi Hayashida, Masayoshi Nobukawa, Takaaki Tanaka, Maho Hanaoka, K. Mori, Kouichi Hagino
Publikováno v:
Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray.
X-Ray Imaging and Spectroscopy Mission (XRISM) is the seventh Japanese X-ray astronomical satellite scheduled to be launched in the Japanese fiscal year 2022. XRISM has two mission instruments, “Resolve”, a soft X-ray spectrometer, and “Xtend
Autor:
Shogo B. Kobayashi, Hiroshi Nakajima, Ayami Ishikura, Takaaki Tanaka, Jin Sato, Tadayasu Dotani, Hiromichi Okon, Hironori Matsumoto, Junko S. Hiraga, Koki Okazaki, Kazutaka Yamaoka, Tomokage Yoneyama, Mariko Saito, Hiroshi Murakami, Hiroshi Tomida, Y. Terada, Kengo Hattori, K. Mori, Masanobu Ozaki, Yukino Urabe, Takayoshi Kohmura, Isamu Hatsukade, Kumiko K. Nobukawa, Hikari Kashimura, Makoto Yamauchi, Takeshi Go Tsuru, Shotaro Sakuma, Kouichi Hagino, Maho Hanaoka, Yusuke Nishioka, Hirofumi Noda, Takashi Sako, Kazunori Asakura, Masayoshi Nobukawa, Toshiyuki Takaki, Hiroyuki Uchida, Hiroshi Tsunemi, Yuki Amano, Yoshiaki Kanemaru, Kiyoshi Hayashida, Hideki Uchiyama
We present experimental studies on the charge transfer inefficiency (CTI) of charge-coupled device (CCD) developed for the soft X-ray imaging telescope, Xtend, aboard the XRISM satellite. The CCD is equipped with a charge injection (CI) capability, i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c09b98467b38aeb05a12b88c3831925f
http://arxiv.org/abs/2009.06246
http://arxiv.org/abs/2009.06246
Autor:
Masayoshi Nobukawa, Hiromichi Okon, Masanobu Ozaki, Hiroshi Tsunemi, Takayoshi Kohmura, Kiyoshi Hayashida, Takashi Sako, Kouichi Hagino, Takaaki Tanaka, Hiroshi Nakajima, Isamu Hatsukade, Yukino Urabe, Kazunori Asakura, Fumiya Tanaka, Yusuke Nishioka, Kenichi Sugimoto, Makoto Yamauchi, Kazutaka Yamaoka, Koji Mori, Tadayasu Dotani, Hirofumi Noda, Koki Okazaki, Tomokage Yoneyama, Mariko Saito, Shogo B. Kobayashi, Hisanori Suzuki, Junko S. Hiraga, Jin Sato, Toshiyuki Takaki, Hideki Uchiyama, Yoshiaki Kanemaru, Yuki Amano, Kengo Hattori, Hironori Matsumoto, Maho Hanaoka, Kumiko K. Nobukawa, Hikari Kashimura, Hiroyuki Uchida, Shin ichiro Takagi, Hiroshi Murakami, Hiroshi Tomida, Y. Terada, Takeshi Go Tsuru, Ayami Ishikura, Shotaro Sakuma, Sho Atsumi
We have been developing P-channel Charge-Coupled Devices (CCDs) for the upcoming X-ray Astronomy Satellite XRISM, planned to be launched in 2021. While the basic design of the CCD camera (Soft X-ray Imager: SXI) is almost the same as that of the lost
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e270f6baded90cf2fbd2eb397282e121
http://arxiv.org/abs/2007.07608
http://arxiv.org/abs/2007.07608
Publikováno v:
Publications of the Astronomical Society of Japan. 72
Supernova remnants (SNRs) have been regarded as major acceleration sites of Galactic cosmic rays. Recent X-ray studies revealed neutral Fe K$\alpha$ line emission from dense gas in the vicinity of some SNRs, which can be best interpreted as K-shell i
Autor:
Yuken Ohshiro, Robert Fisher, Hiroya Yamaguchi, Shing-Chi Leung, Takaaki Tanaka, Brian J. Williams, Toshiki Sato, Robert Petre, Hiromichi Okon, Ken'ichi Nomoto
Publikováno v:
The Astrophysical Journal Letters. 913:L34
The supernova remnant (SNR) 3C 397 is thought to originate from a Type Ia supernova (SN Ia) explosion of a near-Chandrasekhar-mass (M Ch) progenitor, based on the enhanced abundances of Mn and Ni revealed by previous X-ray study with Suzaku. Here we
Autor:
Akira Kashimura, Hiroshi Murakami, Hiroshi Tomida, Ayami Ishikura, Jin Sato, Takashi Sako, Hideki Uchiyama, Kumiko K. Nobukawa, Takeshi Go Tsuru, Yuki Amano, Kengo Hattori, Shotaro Sakuma, Hiroyuki Uchida, K. Mori, Yukino Urabe, Maho Hanaoka, Kouichi Hagino, Masayoshi Nobukawa, Hirofumi Noda, Shogo B. Kobayashi, Toshiyuki Takaki, Hiromichi Okon, Kiyoshi Hayashida, Yoshiaki Kanemaru, Koki Okazaki, Kazunori Asakura, Takaaki Tanaka, Junko S. Hiraga, Tomokage Yoneyama, Mariko Saito, Hironori Matsumoto, Hiroshi Nakajima
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 985:164676
X-ray Imaging Spectroscopy Mission (XRISM) is the next Japanese X-ray astronomical satellite to be launched in 2021 Japanese fiscal year. We are developing one of the XRISM instruments “Xtend”, which is an X-ray CCD camera combined with an X-ray
Autor:
Hideki Uchiyama, Hiroshi Nakajima, Takayuki Hayashi, Tomokage Yoneyama, Kazutaka Yamaoka, Takeo Shimoi, Yoshitomo Maeda, Takeshi Go Tsuru, Hironori Matsumoto, Hiroshi Tsunemi, Satomi Onishi, Isamu Hatsukade, Kazunori Asakura, Takashi Okajima, Koki Okazaki, Yusuke Nishioka, Hiroshi Murakami, Takaaki Tanaka, Tadayasu Dotani, Hiroshi Tomida, Hideyuki Mori, Makoto Yamauchi, Masayuki Yoshida, Masanobu Ozaki, Yang Soong, Koji Mori, Junichi Iwagaki, Ayaki Takeda, Kumiko K. Nobukawa, Junko S. Hiraga, Hiroyuki Uchida, Kouichi Hagino, Kiyoshi Hayashida, Yoshiaki Kanemaru, Hiromichi Okon, Masayoshi Nobukawa, Takayoshi Kohmura, Manabu Ishida, Jin Sato, Shogo B. Kobayashi
Publikováno v:
Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray.
X-ray Astronomy Recovery Mission (XARM) scheduled to be launched in early 2020’s carries two soft X-ray telescopes. One is Resolve consisting of a soft X-ray mirror and a micro calorimeter array, and the other is Soft X-ray Imaging Telescope (Xtend