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

<5 678 9 >

ASTRO-G Observing Systems

Doi Akihiro Tsuboi Masato Kono Yusuke Takeuchi Hiroshi Mochizuki Nanako Murata Yasuhiro Grp ASTRO-G

APPROACHING MICRO-ARCSECOND RESOLUTION WITH VSOP-2: ASTROPHYSICS AND TECHNOLOGY 402 46-+ 2009年 [査読有り]

A Synchronized Variation of the 6.7 GHz Methanol Maser in Cepheus A

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

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 60(5) 1001-1006 2008年10月 [査読有り]

We present the results of monitoring observations of a 6.7 G.Hz methanol maser in Cepheus A (Cep A) using the Yamaguchi 32 m radio telescope and of imaging observations conducted with the JVN (Japanese VLBI Network). We identified five spectral fe...

H2O Maser Outflow from the Red Supergiant Star NML Cygni Observed with Japanese VLBI Network

Takumi Nagayama Koji Takeda Toshihiro Omodaka Hiroshi Imai Seiji Kameno Yoshiaki Sofue Akihiro Doi Kenta Fujisawa Asao Habe Mareki Honma Noriyuki Kawaguchi Eiji Kawai Hideyuki Kobayashi Yasuhiro Koyama Yasuhiro Murata Kazuo Sorai Hiroshi Sudou Hiroshi Takaba Sayaka Tamura Ken-ichi Wakamatsu

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 60(5) 1069-1075 2008年10月 [査読有り]

We present the proper motions of H2O masers in NML Cygni, observed with the Japanese VLBI Network at three epochs spanning 455 d. We detected about 15 maser features at each epoch. Overall, 13 features that were detected at least twice were tracke...

The 2006 radio outbursts of a microquasar Cygnus X-3: Observations and data

Tsuboi Masato Tosaki Tomoka Kuno Nario Nakanishi Kouichiro Sawada Tsuyoshi Umemoto Tomofumi Trushkin Sergei A Kotani Taro Kawai Nobuyuki Kurono Yasutaka Handa Toshihiro Kohno Kotaro Tsukagoshi Takashi Kameya Osamu Kobayashi Hideyuki Fujisawa Kenta Doi Akihiro Omodaka Toshihiro Takaba Hiroshi Sudou Hiroshi Wakamatsu Ken-ichi Koyama Yasuhiro Kawai Eiji Mochizuki Nanako Murata Yasuhiro

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 60(3) 465-473 2008年6月 [査読有り]

Mapping observations of 6.7 GHz methanol masers with the Japanese VLBI network

Koichiro Sugiyama Kenta Fujisawa Akihiro Doi Mareki Honma Hideyuki Kobayashi Takeshi Bushimata Nanako Mochizuki Yasuhiro Murata

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 60(1) 23-35 2008年2月 [査読有り]

We have observed 13 methanol maser sources associated with massive star-forming regions: W 3(OH), Mon R2, S 255, W 33A, IRAS 18151-1208, G 24.78+0.08, G 29.95-0.02, IRAS 18556+0136, W 48, OH 43.8-0.1, ON 1, Cep A, and NGC 7538 at 6.7 GHz using the...