講演情報
[PPS07-P29]Comet Interceptor mission: an overview and an expected contribution from Japan
*笠原 慧1、亀田 真吾2、吉岡 和夫1、松岡 彩子3、河北 秀世4、新中 善晴4、渡部 潤一5、斎藤 義文6、船瀬 龍1,6、尾崎 直哉6 (1.東京大学、2.立教大学、3.京都大学、4.京都産業大学、5.国立天文台、6.宇宙科学研究所)
Comets are pristine small bodies and thus provide key information about the solar system evolution. Remote observations by ground observatories have characterized various comets, while in-situ observations by spacecraft have brought much more detailed information on several comets. However, the direct observations by spacecraft fly-by or rendezvous have been limited to the short-period comets, which neared the sun many times in the past and thus lost some of primitive characteristics. The Comet Interceptor mission, led by ESA, aims at a long period comet or an interstellar object. We, Japanese team, will provide an ultra-small daughter spacecraft, whose closest approach will be less than 1,000 km, allowing the first-ever multi-spacecraft fly-by observations of a comet.