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2016 Fiscal Year Final Research Report

Search for Traces of Giant Impacts of Rocky Planets with Silica Feature

Research Project

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Project/Area Number 25707009
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypePartial Multi-year Fund
Research Field Astronomy
Research InstitutionThe University of Tokyo

Principal Investigator

Sako Shigeyuki  東京大学, 理学(系)研究科(研究院), 助教 (90533563)

Research Collaborator KAMIZUKA Takafumi  
UCHIYAMA Masahito  
YAMAGUCHI Jumpei  
Project Period (FY) 2013-04-01 – 2017-03-31
Keywords系外惑星 / 中間赤外線 / 観測装置 / 監視観測
Outline of Final Research Achievements

A rocky planet acquires mass through multiple giant impact events. We consider silica, which is produced only under a high temperature and high pressure condition, as a tracer of the giant impacts and investigate the impact events by observing a shape and time variation of silica feature in 10 microns radiated from young exo-planets with the mid-infrared instrument MIMIZUKU. MIMIZUKU can obtain spectra in the 10-micron band with high accuracy by a field stacker unit. In this study, we have developed sensor units, opto-mechanical units, and the field stacker unit of MIMIZUKU and successfully completed integrated tests after assembling them into a vacuum dewar and an optical system. We also have planned spectroscopic monitoring observations with MIMIZUKU on the Subaru telescope.

Free Research Field

光赤外線天文学

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Published: 2018-03-22  

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