Výsledky vyhledávání - "Yoichi Yatsu"

Akademický článek

Optical and Infrared Lightcurve Modeling of the Gamma-ray Millisecond Pulsar 2FGL J2339.6-0532

Autor: Tzu-Ching Yen, Albert Kwok-Hing Kong, Yoichi Yatsu, Hidekazu Hanayama, Takahiro Nagayama, on behalf of OISTER

Publikováno v: Journal of Astronomy and Space Sciences, Vol 30, Iss 3, Pp 159-162 (2013)

We report the detection of a quasi-sinusoidally modulated optical flux with a period of 4.6343 hour in the optical and infrared band of the Fermi source 2FGL J2339.7-0531. Comparing the multi-wavelength observations, we suggest that 2FGL J2339.7- 0

Externí odkaz: https://doaj.org/article/1cb4a77d449141a1964f58bbaa7c6f78

Zobrazit plný text záznamu

Development and In-Orbit Operation of Deep Learning Attitude Sensor

Autor: Yuhei Kikuya, Kei Ohta, Yohei Iwasaki, Toshiki Ozawa, Kei Watanabe, Yoichi Yatsu, Saburo Matunaga

Publikováno v: Journal of Spacecraft and Rockets. :1-10

This study presents in-orbit demonstrations of a deep learning attitude sensor (DLAS) aboard the Japan Aerospace Exploration Agency (JAXA) small-satellite, Rapid Innovative Payload Demonstration Satellite 1. The DLAS is a spaceborne component that co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df6094266fa96a808239224513df2e03
https://doi.org/10.2514/1.a35388

Zobrazit plný text záznamu

A broadband x-ray imaging spectroscopy in the 2030s: the FORCE mission

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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7991db468a015e478173e02135c10e9e
https://doi.org/10.1117/12.2628772

Zobrazit plný text záznamu

Attitude Determination Algorithm Using Earth Sensor Images and Image Recognition

Autor: Saburo Matunaga, Yuhei Kikuya, Yohei Iwasaki, Yoichi Yatsu

Publikováno v: Transactions of the Japan Society for Aeronautical and Space Sciences. 64(No. 2):82-90

This paper describes a new algorithm to determine the attitude of micro-/nano-satellites using an Earth sensor. For recent micro-/nano-satellites, the requirements for attitude determination accuracy are becoming more stringent, despite its limited v

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bfe0950fd489b1a5a1352d5610fbc6c
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100852058

Zobrazit plný text záznamu

Development of an FPGA-based Readout System of CMOS Image Sensor toward Future Satellite Missions

Autor: Naoki Ogino, Makoto Arimoto, Tatsuya Sawano, Daisuke Yonetoku, Hatsune Goto, Takeru Fujii, Junko S. Hiraga, Kensyo Sei, Ayumi Yamamoto, Takanori Sakamoto, Yoichi Yatsu, Tatehiro Mihara

Publikováno v: 2021 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::292936a47f5bddc6882d27b4d910e5c8
https://doi.org/10.1109/nss/mic44867.2021.9875480

Zobrazit plný text záznamu

J-GEM optical and near-infrared follow-up of gravitational wave events during LIGO's and Virgo's third observing run

Autor: Mingjie Jian, Hideo Mamiya, Yuhei Kamei, Kenshi Yanagisawa, Ryohei Hosokawa, Hiroshi Akitaya, Noriyuki Katoh, Satoshi Honda, Yuichiro Sekiguchi, Yumiko Oasa, Koji S. Kawabata, Moeno Yasuda, Takumi Iwasaki, Nobuyuki Kawai, Ryou Ohsawa, Masayuki Yamanaka, Miki Oeda, Ryo Hamasaki, Chihiro Ishioka, Yousuke Utsumi, Takumi Shigeyoshi, Kazuki Daikuhara, Himeka Takeuchi, Miyako Tozuka, Hiroki Onozato, Jun Takahashi, Tomoki Morokuma, Yasuki Tamura, Yuki Nishinaka, Michitoshi Yoshida, Takahiro Kanai, Nagomi Uchida, Keiichiro Kubota, Kazuki Shiraishi, Takahiro Nagayama, Takuya Takarada, Yang Chong, Tomoki Saito, Yoshinori Uzawa, Yoichi Yatsu, Kumiko Morihana, Yuma Kubota, Shigeyuki Sako, Kazuya Matsubayashi, Hidehiro Kaneda, Yuu Niino, Masafumi Niwano, Mahito Sasada, Kengo Takagi, Daisuke Suzuki, Takayuki Ohgami, Nozomu Tominaga, M. Shikauchi, Kota Iida, Noriatsu Nakamura, Futa Ogawa, Katsuhiro L. Murata, Sayaka Toma, Ryosuke Itoh, Kohei Oide, Daisaku Nogami, Fumio Abe, Masaomi Tanaka, Kouji Ohta, Ayane Kaneko, Tatsuya Nakaoka, Ryo Adachi, Ryoya Tanaka, Toshikazu Shigeyama, Masaki Takayama, Fumiya Imazato

The Laser Interferometer Gravitational-wave Observatory Scientific Collaboration and Virgo Collaboration (LVC) sent out 56 gravitational-wave (GW) notices during the third observing run (O3). Japanese collaboration for Gravitational wave ElectroMagne

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1440b967ef8dc64732cd3a52fad2f65d
http://arxiv.org/abs/2106.04842

Zobrazit plný text záznamu

Development of transient detection method and GPU-accelerated image reduction pipeline

Autor: Yoichi Yatsu, Ryohei Hosokawa, K. L. Murata, Kota Iida, Ryo Adachi, Futa Ogawa, Motoki Oeda, Kazuki Shiraishi, Nobuyuki Kawai, Masafumi Niwano, Sayaka Toma

Publikováno v: Observatory Operations: Strategies, Processes, and Systems VIII.

Identification of optical counterparts of gravitational waves (GWs) is one of the most exciting topics in astronomy. Since a typical sky map error region of the LIGO/Virgo is much larger than the field-of-view of optical telescopes, it is important t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d0e8f076d21f9dffde11f87cdfdac733
https://doi.org/10.1117/12.2561258

Zobrazit plný text záznamu

High-z gamma-ray bursts unraveling the dark ages and extreme space-time mission: HiZ-GUNDAM

Autor: Yujin E. Nakagawa, Miku Kurimata, Yoshitomo Maeda, Jin Li, Yudai Suwa, Tomoya Kinugawa, Norio Narita, Naoki Ogino, Tatehiro Mihara, Yoichi Yatsu, Kazutaka Yamaoka, Satoshi Sugita, Yuu Niino, Toru Tanimori, Takaaki Tanaka, Teruaki Enoto, Shunsuke Kurosawa, Shigehiro Nagataki, Masaomi Tanaka, Kohji Tsumura, Akihiro Miyasaka, Nobuyuki Kawai, Makoto Yamauchi, Jin Matsumoto, Yoshikatsu Kawata, Keisuke Tamura, Akira Mizuta, Ayumi Yamamoto, T. Sakamoto, Hidehiro Kaneda, Junko S. Hiraga, Hatsune Goto, Kohta Murase, Motoko Serino, Kunihito Ioka, Makoto Arimoto, Hideyuki Izumiura, Masanori Ohno, Akihiko Fukui, Atsumasa Yoshida, Akihiro Doi, Hirotaka Ito, Keitaro Takahashi, Makoto Tashiro, Kenta Kiuchi, Michitoshi Yoshida, Akisato Ohashi, Shuichi Gunji, Kei Sano, Shuji Matsuura, Daito Yuhi, Hirokazu Ikeda, Hiroshi Akitaya, Koji S. Kawabata, Daisuke Yonetoku, Yoshifusa Ita, Hikaru Yamaguchi, Hiroki Nagakura, Yoshikazu Nakada, Takashi Nakamura, Takeru Fujii, Tomonori Totani, Hirofumi Okita, Kensyo Sei, Yusuke Amaya, Tatsuya Sawano, Katsuaki Asano, Kenshi Yanagisawa, Hyeongsoon Wang, Yuji Urata, Ikuyuki Mitsuishi, Tomohiro Yamaguchi, Norita Kawanaka, Jun'ichi Yokoyama, Toshio Murakami, Ryo Yamazaki, Kentaro Motohara, Toru Tamagawa, Takehiko Wada, Susumu Inoue, Shota Kisaka, Kenji Toma, Kohei Inayoshi, Toshio Matsumoto, Takahiro Tanaka, Hirofumi Noda, Hiroshi Tomida

Publikováno v: Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray.

HiZ-GUNDAM is a future satellite mission which will lead the time-domain astronomy and the multi-messenger astronomy through observations of high-energy transient phenomena. A mission concept of HiZ-GUNDAM was approved by ISAS/JAXA, and it is one of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::41ed8ccb33364dd7633a7f4322ca2da0
https://doi.org/10.1117/12.2560603

Zobrazit plný text záznamu

Development of a fast readout system of a CMOS image sensor for the time-domain astronomy

Autor: Makoto Arimoto, Junko S. Hiraga, Hatsune Goto, Naoki Ogino, Kensyo Sei, Daisuke Yonetoku, Wang Hyeongsoon, T. Sakamoto, Yoichi Yatsu, Tatsuya Sawano

Publikováno v: Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray.

In this paper we report on development of an FPGA-based fast readout system of a CMOS image sensor for the future satellite mission HiZ-GUNDAM observing gamma-ray bursts (GRBs) in the 0.4–4 keV band. Since the typical durations of GRBs are about 0.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c60837f241e9a086a95cf03c87cc1313
https://doi.org/10.1117/12.2560605

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání