深宇宙追跡技術グループ

研究キーワード

電波天文学 ,Radio Astronomy

研究分野

自然科学一般 / 天文学 /

経歴

1991年

-

1992年

学術振興会特別研究員

1991年

-

1992年

Researcher in Japan Society for the Promotion of Science

1992年

- 文部省宇宙科学研究所助手

1992年

- The Institute of Space and Astronautical Science

学歴

-

1991年

東京大学理学系研究科天文学

-

1991年

東京大学

-

1986年

東京大学理学部天文学

-

1986年

東京大学

論文

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Ka-band cryogenic low-noise receiver of the Misasa 54 m antenna for deep-space communications and radio astronomy

Masato Tsuboi Yutaka Hasegawa Go Tabuchi Yasuhiro Murata Koji Yuchi Tomoaki Toda Takashi Uchimura Kimihiro Kimura Takashi Kasuga

Publications of the Astronomical Society of Japan 75(3) 567-583 2023年4月 [査読有り]

We built a Ka-band dual-circular-polarization low-noise receiver for the Misasa 54 m parabola antenna in Misasa, Japan. The antenna is designed to be combined with a transmitter and receiver system at the X band (around 8 GHz) and simultaneously w...

The Past and Future of East Asia to Italy: Nearly Global VLBI

Gabriele Giovannini Yuzhu Cui Kazuhiro Hada Kunwoo Yi Hyunwook Ro Bong Won Sohn Mieko Takamura Salvatore Buttaccio Filippo D’Ammando Marcello Giroletti Yoshiaki Hagiwara Motoki Kino Evgeniya Kravchenko Giuseppe Maccaferri Alexey Melnikov Kotaro Niinuma Monica Orienti Kiyoaki Wajima Kazunori Akiyama Akihiro Doi Do-Young Byun Tomoya Hirota Mareki Honma Taehyun Jung Hideyuki Kobayashi Shoko Koyama Andrea Melis Carlo Migoni Yasuhiro Murata Hiroshi Nagai Satoko Sawada-Satoh Matteo Stagni

Galaxies 11(2) 49-49 2023年3月 [査読有り]

We present here the East Asia to Italy Nearly Global VLBI (EATING VLBI) project. How this project started and the evolution of the international collaboration between Korean, Japanese, and Italian researchers to study compact sources with VLBI obs...

Detection of a bright burst from the repeating fast radio burst 20201124A at 2 GHz

Sota Ikebe Kazuhiro Takefuji Toshio Terasawa Sujin Eie Takuya Akahori Yasuhiro Murata Tetsuya Hashimoto Shota Kisaka Mareki Honma Shintaro Yoshiura Syunsaku Suzuki Tomoaki Oyama Mamoru Sekido Kotaro Niinuma Hiroshi Takeuchi Yoshinori Yonekura Teruaki Enoto

Publications of the Astronomical Society of Japan 75(1) 199-207 2023年2月

Abstract

We present a detection of a bright burst from the fast radio burst (FRB) 20201124A, which is one of the most active repeating FRBs, based on S-band observations with the 64 m radio telescope at the Usuda Deep Space Center/JAXA. This is ...

Physical properties of the molecular cloud, N4, in SS 433: Evidence for an interaction of molecular cloud with the jet from SS 433

Hiroaki Yamamoto Ryuji Okamoto Yasuhiro Murata Hiroyuki Nakanishi Hiroshi Imai Kohei Kurahara

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 74(3) 493-509 2022年6月

We conducted observations and analyses of the molecular cloud, N4, which is located at similar to 40 pc from SS 433 and the same line of sight as that of the radio shell, in (CO)-C-12(J = 1-0), (CO)-C-12(J = 3-2), (CO)-C-13(J = 3-2), and grand-sta...

Observation of the Solar Corona Using Radio Scintillation with the Akatsuki Spacecraft: Difference Between Fast and Slow Wind

Shota Chiba Takeshi Imamura Munetoshi Tokumaru Daikou Shiota Takuma Matsumoto Hiroki Ando Hiroshi Takeuchi Yasuhiro Murata Atsushi Yamazaki Bernd Häusler Martin Pätzold

Solar Physics 297(3) 2022年3月