[P-AE17] 系外惑星

[PAE17-P09] Japanese contribution to development of Ariel

*塩谷 圭吾¹、生駒 大洋²、成田 憲保³、福井 暁彦³、亀田 真吾⁴、村上 豪¹、伊藤 祐一²、川島 由依⁵、藤井 友香² (1.宇宙研、2.国立天文台、3.東京大学、4.立教大学、5.理研)

キーワード：アリエル、系外惑星、トランジット、AIRS、CaF2光学素子、ESA

Ariel (Atmospheric Remote-sensing Infrared Exoplanet Large-survey) is an ESA-led space telescope project dedicated for exoplanet spectroscopic transit observations. Ariel has been selected for ESA / M4 (2020) and its launch is scheduled for 2029. Ariel is expected to be an important milestone in exoplanet observations. The Japanese team are working to participate Arierl as a Co-PI country (chair of Ariel-J WG: Masahiro Ikoma). For that purpose, contribution to development is required. Based on technical heritages in Japan, the Japanese team are in charge of developing calcium fluoride (CaF2) optical devices: lenses, prisms, wideband infrared anti-reflection coating, and the qualification test. These products will be used in AIRS (infrared spectrometer, development is led by France team).