The proposed Caroline ESA M3 mission to a Main Belt Comet
The proposed Caroline ESA M3 mission to a Main Belt Comet
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DOI：
10.1016/j.asr.2018.02.032
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发表时间：
2018-10-15
影响因子：
2.6
通讯作者：
Tubiana, Cecilia
中科院分区：
文献类型：
--
作者：
Jones, Geraint H.;Agarwal, Jessica;Tubiana, Cecilia
我们描述卡罗琳，一个使命的建议提交给欧洲航天局在2010年响应宇宙愿景M3呼吁中型任务。卡罗琳将前往主带彗星（MBC），在飞越过程中描述该物体，并从其脆弱的昏迷中捕获尘埃返回地球。MBC被怀疑是跨越挥发物贫乏的岩石小行星和挥发物丰富的彗星之间的传统边界的过渡物体。这些天体表现出的微弱彗星活动表明存在水冰，可能是早期地球上主要的水输送天体。卡罗琳使命将采用气凝胶作为捕获尘埃颗粒的媒介，正如美国宇航局的星尘使命成功地用于彗星81 P/Wild 2。我们描述了拟议的使命设计，航天器的主要元素，并提供了一个概述的科学仪器和他们的测量目标。卡罗琳最终没有选择欧洲航天局在M3的电话，我们简要地反映了利弊的使命的建议，以及如何当前和未来的使命MBC使命的建议，如卡斯特利亚可以最好地接近。(C)2018 COSPAR。爱思唯尔有限公司出版
We describe Caroline, a mission proposal submitted to the European Space Agency in 2010 in response to the Cosmic Visions M3 call for medium-sized missions. Caroline would have travelled to a Main Belt Comet (MBC), characterizing the object during a flyby, and capturing dust from its tenuous coma for return to Earth. MBCs are suspected to be transition objects straddling the traditional boundary between volatile-poor rocky asteroids and volatile-rich comets. The weak cometary activity exhibited by these objects indicates the presence of water ice, and may represent the primary type of object that delivered water to the early Earth. The Caroline mission would have employed aerogel as a medium for the capture of dust grains, as successfully used by the NASA Stardust mission to Comet 81P/Wild 2. We describe the proposed mission design, primary elements of the spacecraft, and provide an overview of the science instruments and their measurement goals. Caroline was ultimately not selected by the European Space Agency during the M3 call; we briefly reflect on the pros and cons of the mission as proposed, and how current and future mission MBC mission proposals such as Castalia could best be approached. (C) 2018 COSPAR. Published by Elsevier Ltd.