Direct imaging and spectroscopy of gas giants and detection of terrestrial planets

2016 Fiscal Year Final Research Report

• Project Area: New Frontiers of Extrasolar Planets: Exploring Terrestrial Planets
• Project/Area Number: 23103002
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: National Astronomical Observatory of Japan
• Principal Investigator: HAYASHI Masahiko 国立天文台, 大学共同利用機関等の部局等, 台長 (10183914)
• Co-Investigator(Kenkyū-buntansha): 住 貴宏 大阪大学, 理学(系)研究科(研究院), 准教授 (30432214) ; 高遠 徳尚 国立天文台, ハワイ観測所, 准教授 (50261152) ; 左近 樹 東京大学, 理学(系)研究科(研究院), 助教 (70451820) ; 藤原 英明 国立天文台, ハワイ観測所, RCUH職員 (70581445) ; Guyon Olivier 国立天文台, ハワイ観測所, RCUH職員 (90399288)
• Co-Investigator(Renkei-kenkyūsha): SUTO Yasushi 東京大学, 理学系研究科, 教授 (90183053) ; SATO Bun'ei 東京工業大学, グローバルエッジ研究院, 准教授 (40397823) ; ITO Yoichi 兵庫県立大学, 自然・環境科学研究所, 教授 (70332757) ; HONDA Mitsuhiko 久留米大学, 医学部, 助教 (40449369) ; MORINO Junichi 国立天文台, 光赤外研究部, 助教 (10370107)
• Project Period (FY): 2011-04-01 – 2016-03-31
• Keywords: 系外惑星 / 惑星大気 / 原始惑星系円盤 / 惑星系形成

Outline of Final Research Achievements

As part of the Grant-in-Aid program “Extrasolar Planets” for Scientific Research on Innovative Areas, we mainly pursued the following two subjects:
(1) Direct Imaging of Gas Giants with Subaru Telescope. We successfully imaged two new gas giants. The one around GJ504 has a mass of 4 MJupter and could be called as “Second Jupiter.”
(2) Development of Instruments for Direct Spectroscopy of Exoplanets. We developed CHARIS, an integral field spectrograph, and SCExAO, an extreme adaptive optics system, for Subaru Telescope in order to carry out direct spectroscopy of exoplanets and successfully obtained spectra from exoplanets by combining these new instruments.

Free Research Field

天文学