原行星盘中来自固体碰撞的气相离子

Q1 Earth and Planetary Sciences

Monthly Notices of the Royal Astronomical Society: Letters Pub Date : 2024-01-09 DOI:10.1093/mnrasl/slae004

Jakob Penner, G. Wurm, J. Teiser

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引用次数: 0

摘要

电离对于原行星盘中的磁流体力学和化学非常重要，但已知的电离源在中面上通常很弱。我们首次展示了实验室实验的数据，在实验中我们测量了碰撞的毫米钴粒向周围气相发射的离子。这一积极的探测结果意味着行星形成早期阶段最基本的碰撞是电离的来源。尽管缺乏强烈的辐射源，原行星盘的中面可能已经电离。

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Gas Phase Ions in Protoplanetary Disks from Collisions of Solids

Ionization is important for magnetohydrodynamics and chemistry in protoplanetary disks but known ionization sources are often weak along the midplane. We present, for the first time, data from a laboratory experiment, where we measure ions from colliding mm-basalt grains emitted into the surrounding gas phase. This positive detection implies that very basic collisions in early phases of planet formation are sources of ionization. The midplane of protoplanetary disks might be ionized despite the lack of intense radiation sources.

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来源期刊

Monthly Notices of the Royal Astronomical Society: Letters Earth and Planetary Sciences-Space and Planetary Science

CiteScore

8.80

自引率

0.00%

发文量

136

期刊介绍： For papers that merit urgent publication, MNRAS Letters, the online section of Monthly Notices of the Royal Astronomical Society, publishes short, topical and significant research in all fields of astronomy. Letters should be self-contained and describe the results of an original study whose rapid publication might be expected to have a significant influence on the subsequent development of research in the associated subject area. The 5-page limit must be respected. Authors are required to state their reasons for seeking publication in the form of a Letter when submitting their manuscript.