Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Kumiko K. Nobukawa"'
Publikováno v:
Publications of the Astronomical Society of Japan. 75:373-383
We have investigated supernova remnant (SNR) W 28 using Suzaku archival data, and we report here the results of our spatially resolved analyses. We carried out spectral analyses using a recombining-plasma (RP) model with element-dependent initial ion
Publikováno v:
Publications of the Astronomical Society of Japan.
The Galactic ridge X-ray emission (GRXE) is unresolved X-ray emission located on the Galactic plane, and whether the GRXE comes from truly diffuse plasma or unresolved point sources is still debatable. We present results of spectral analysis of the G
Autor:
Koji Mori, Takeshi G. Tsuru, Kazuhiro Nakazawa, Yoshihiro Ueda, Shin Watanabe, Takaaki Tanaka, Manabu Ishida, Hironori Matsumoto, Hisamitsu Awaki, Hiroshi Murakami, Masayoshi Nobukawa, Ayaki Takeda, Yasushi Fukazawa, Hiroshi Tsunemi, Tadayuki Takahashi, Ann E. Hornschemeier, Takashi Okajima, William W. Zhang, Brian J. Williams, Tonia Venters, Kristin Madsen, Mihoko Yukita, Hiroki Akamatsu, Aya Bamba, Teruaki Enoto, Yutaka Fujita, Akihiro Furuzawa, Kouichi Hagino, Kosei Ishimura, Masayuki Itoh, Tetsu Kitayama, Shogo B. Kobayashi, Takayoshi Kohmura, Aya Kubota, Misaki Mizumoto, Tsunefumi Mizuno, Hiroshi Nakajima, Kumiko K. Nobukawa, Hirofumi Noda, Hirokazu Odaka, Naomi Ota, Toshiki Sato, Megumi Shidatsu, Hiromasa Suzuki, Hiromitsu Takahashi, Atsushi Tanimoto, Yukikatsu Terada, Yuichi Terashima, Hiroyuki Uchida, Yasunobu Uchiyama, Hiroya Yamaguchi, Yoichi Yatsu
Publikováno v:
Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray.
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
In this paper, we investigated the Fe K-shell lines in the supernova remnant W51C and hard X-ray sources in the proximity. We measured the intensities of Fe I K$\alpha$ and Fe XXV He$\alpha$ lines at 6.40 keV and 6.68 keV, respectively, and found tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2602bd653b7c04935fcac3361a536fe4
We report a discovery of diffuse X-ray emission around the supernova remnant (SNR) G106.3+2.7, which is associated with VER J2227+608 and HAWC J2227+610 and is known as a candidate for a PeV cosmic ray accelerator (PeVatron). We analyze observational
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60c20914e41bf7cd625cc1dae5fa0f50
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:
Kumiko K. Nobukawa
Publikováno v:
Proceedings of Multifrequency Behaviour of High Energy Cosmic Sources - XIII — PoS(MULTIF2019).
Information on low-energy cosmic rays (CRs) below the MeV band has been very limited due to difficulty of measurements in contrast to high-energy (GeV–TeV) CRs, which are observable via gamma-rays. Only ionization rate provides indirect information
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