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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ASTRO-G/VSOP-2 off-set Cassegrain telescope

K. Kimura H. Ogawa H. Ujihara N. Kishimoto K. Kawahara T. Mizuno Y. Murata M. C. Natori H. Hirabayashi M. Tsuboi K. Higuchi H. Saito M. Yoshihara S. Iikura

2008 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, VOLS 1-9 615-+ 2008年 [査読有り]

Following the success of the first VLBI Space Observatory Programme (VSOP), a satellite of a next space VLBI project, ASTRO-G/VSOP-2, is being designed. Very Long Baseline Interferometry (VLBI) is a technique to achieve very high angular resolutio...

Japanese VLBI network observations of radio-loud narrow-line Seyfert 1 galaxies

Akihiro Doi Kenta Fujisawa Makoto Inoue Kiyoaki Wajima Hiroshi Nagai Keiichiro Harada Kousuke Suematsu Asao Habe Mareki Honma Noriyuki Kawaguchi Eiji Kawai Hideyuki Kobayashi Yasuhiro Koyama Hiromitsu Kuboki Yasuhiro Murata Toshihiro Omodaka Kazuo Sorai Hiroshi Sudou Hiroshi Takaba Kazuhiro Takashima Koji Takeda Sayaka Tamura Ken-ichi Wakamatsu

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 59(4) 703-709 2007年8月 [査読有り]

We performed phase-reference very long baseline interferometry (VLBI) observations on five radio-loud narrow-line Seyfert 1 galaxies (NLS1s) at 8.4 GHz with the Japanese VLBI Network. Each of the five targets (RXS J08066+7248, RXS J16290+4007, RXS...

Japanese VLBI network observations of 6.7-GHz methanol masers II. Results

Koichiro Sugiyama Kenta Fujisawa Mareki Honma Akihiro Doi Nanako Mochizuki Yasuhiro Murata Yasuko Isono

Proceedings of the International Astronomical Union 3(242) 176-177 2007年3月 [査読有り]

We are using a Japanese VLBI network (JVN) for VLBI observations of 6.7-GHz methanol masers associated with massive star-forming regions. Here we present results for Cepheus A (Cep A) from observations taken on September 9, 2006. The distribution ...

Japanese VLBI network observations of 6.7-GHz methanol masers I. Array

Akihiro Doi Kenta Fujisawa Mareki Honma Koichiro Sugiyama Yasuhiro Murata Nanako Mochizuki Yasuko Isono

Proceedings of the International Astronomical Union 3(242) 148-149 2007年3月 [査読有り]

The Japanese VLBI network (JVN) has begun observations of 6.7-GHz methanol masers associated with massive star-forming regions. The JVN is a newly-established VLBI array with baselines ranging from 50 to 2560 km spread across the Japanese islands....

Spacecraft Navigation - Delta VLBI observation of Hayabusa at touchdown to ITOKAWA

Mamoru Sekido Ryuichi Ichikawa Makoto Yoshikawa Hiroshi Takeuchi Takaji Kato Nanako Mochizuki Yasuhiro Murata Tsutomu Ichikawa

PROCEEDINGS OF SICE ANNUAL CONFERENCE, VOLS 1-8 3020-3027 2007年

This report describes the evaluation of Delta VLBI delay measurement accuracy for Spacecraft Navigation. At the epochs of Hayabusa's touchdown to asteroid Itokawa, we made Delta VLBI observation for Hayabusa with Japanese domestic VLBI stations. S...