Developing Remote Sensing Methods for Characterization of Exoplanets

2016 Fiscal Year Final Research Report

• Project/Area Number: 25800106
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Astronomy
• Research Institution: The University of Tokyo
• Principal Investigator: Kawahara Hajime 東京大学, 大学院理学系研究科(理学部), 助教 (90649758)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 太陽系外惑星 / キャラクタリゼーション / 直接撮像 / トランジット惑星 / 長周期惑星

Outline of Final Research Achievements

Recently, many Earth-sized planets have been reported. However, how do we characterize these planets or constrain the planet formation theory or approach bio-phenomena at the planets? In this research, we developed the methodology for the remote-sensing of the exoplanets. We constructed the method to estimate the obliquity by the photometric variation of the directly imaged planets. We also propose a new concept of the instruments, which combine a coronagraph with a high dispersion spectrograph. So far, it has been considered that the long-period planets are difficult to be characterized. We developed a novel method to detect them and detected seven long period planets in Kepler data.

Free Research Field

太陽系外惑星