伊藤洋一

研究者氏名	伊藤洋一
	イトウヨウイチ
URL
所属	兵庫県立大学
部署	自然・環境科学研究所宇宙天文系天文科学センター
職名	教授
学位	修士（理学）（東京大学）, 博士（理学）（東京大学）
J-Global ID	200901034412025989

研究キーワード

光学赤外線天文学 ,太陽系外惑星 ,星惑星形成

研究分野

自然科学一般 / 天文学 /

委員歴

2022年

現在

東京大学アタカマ望遠鏡科学諮問委員会

国立天文台すばる科学諮問委員会

論文

<7 8910 11 >

High-contrast planet imager for Kyoto 4m segmented telescope

Taro Matsuo Naoshi Murakami Takayuki Kotani Hajime Kawahara Noriaki Natsume Masaru Kino Kodai Yamamoto Hiroaki Imada Mikio Kurita Masatsugu Iribe Hideya Nishida Manabu Kida Hirofumi Kitou Kumi Ishikawa Yutaka Uda Hitoshi Tokoro Tetsuya Nagata Fumihide Iwamuro Noriaki Miura Shin Oya Yoichi Itoh Hiroshi Shibai Motohide Tamura

Proceedings of SPIE - The International Society for Optical Engineering 9147 2014年 [査読有り]

We propose a new high contrast imager for Kyoto 4m segmented telescope called SEICA (Second-generation Exoplanet Imager with Coronagraphic Adaptive optics), aiming at detection and characterization of selfluminous gas giants within 10AU around nea...

Development of Nayoro Optical Camera and Spectrograph for 1.6-m Pirka telescope of Hokkaido University

Hikaru Nakao Makoto Watanabe Kazuo Sorai Mahiro Yamada Yoichi Itoh Shigeyuki Sako Takashi Miyata

GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY V 9147 2014年

We have developed a visible imager and spectrograph, Nayoro Optical Camera and Spectrograph (NaCS), installed at the f/12 Nasmyth focus of the 1.6-m Pirka telescope of the Hokkaido University in Hokkaido, Japan. The optical and mechanical design i...

Near-infrared colors of asteroid 2012 DA14 at its closest approach to Earth: Observations with the Nishiharima Infrared Camera (NIC)

Jun Takahashi Seitaro Urakawa Tsuyoshi Terai Hidekazu Hanayama Akira Arai Satoshi Honda Yuhei Takagi Yoichi Itoh Takahiro Zenno Masateru Ishiguro

Publications of the Astronomical Society of Japan 66(3) 53-53 2014年 [査読有り]

We present the results of our JHKs photometry of asteroid 2012 DA14 at its closest approach to Earth on 2013 February 15. Possible spectral changes associated with resurfacing by planetary encounters are of great interest. The Earth flyby of 2012 ...

Disk dissipation timescale of pre-main sequence stars in Taurus

Yuhei Takagi Yoichi Itoh Yumiko Oasa

Publications of the Astronomical Society of Japan 66(5) 2014年 [査読有り]

We present the results of an age determination study of pre-main sequence stars in the Taurus star-forming region. The ages of 10 single stars with masses of 0.5-1.1 M&lt
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⊙&lt
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were derived from the surface gravities, estimated from...

A long-period eccentric substellar companion to the evolved intermediate-mass star HD 14067

Liang Wang Bun'ei Sato Masashi Omiya Hiroki Harakawa Yujuan Liu Nan Song Wei He Xiaoshu Wu Hideyuki Izumiura Eiji Kambe Yoichi Takeda Michitoshi Yoshida Yoichi Itoh Hiroyasu Ando Eiichiro Kokubo Shigeru Ida Gang Zhao

Publications of the Astronomical Society of Japan 66(6) 118-118 2013年12月 [査読有り]

We report on the detection of a substellar companion orbiting an evolved intermediate-mass (M?∈=∈2.4∈M) star HD∈14067 (G9∈III) using a precise Doppler technique. Either a periodic Keplerian variation with a decreasing linear velocity trend (P∈=∈14...