The Role of Ferromagnetic Iron in Planetesimal Formation
铁磁铁在星子形成中的作用
基本信息
- 批准号:320743803
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:2016
- 资助国家:德国
- 起止时间:2015-12-31 至 2019-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Iron is among the most abundant elements in protoplanetary disks. There is ample evidence that also metallic iron is present during early phases of planet formation. Since it is generally accepted that planet formation starts with the aggregation of dust particles, the question is which role iron plays during this process. So far, work on planetesimal formation in the inner regions of protoplanetary disks concentrated on the physics of silicates and their growth. However, recent models predict that iron particles might have a strong influence on the growth process. This is especially true as they interact with the magnetic field of the disks. In this project the evolution of different metal-silicate mixtures in magnetic fields of relevant strengths colliding with velocities beyond the fragmentation limit will be studied in experiments for the first time. As extreme scenario, this process will lead to a local and compositional selective initiation of planetesimal formation.
铁是原行星盘中最丰富的元素之一。有充分的证据表明,在行星形成的早期阶段也存在金属铁。由于人们普遍认为行星的形成始于尘埃颗粒的聚集,问题是铁在这个过程中扮演了什么角色。到目前为止,对原行星盘内部区域的星子形成的研究主要集中在硅酸盐的物理性质及其生长上。然而,最近的模型预测,铁颗粒可能对生长过程有很强的影响。当它们与磁盘的磁场相互作用时尤其如此。本项目将首次在实验中研究不同金属硅酸盐混合物在相应强度的磁场中以超过破碎极限的速度碰撞的演化过程。在极端情况下,这一过程将导致局部和成分选择性地开始星子的形成。
项目成果
期刊论文数量(7)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Constraints on compound chondrule formation from laboratory high-temperature collisions
实验室高温碰撞复合球粒形成的约束
- DOI:10.1016/j.icarus.2018.09.011
- 发表时间:2019
- 期刊:
- 影响因子:3.2
- 作者:T. Bogdan;J. Teiser;N. Fischer;M. Kruss;G. Wurm
- 通讯作者:G. Wurm
Wind erosion on Mars and other small terrestrial planets
火星和其他小型类地行星上的风蚀
- DOI:10.1016/j.icarus.2019.113438
- 发表时间:2020
- 期刊:
- 影响因子:3.2
- 作者:M. Kruss;G. Musiolik;T. Demirci;G. Wurm;J. Teiser
- 通讯作者:J. Teiser
Composition and Size Dependent Sorting in Preplanetary Growth: Seeding the Formation of Mercury-like Planets
行星前生长中的成分和大小依赖性排序:为类水星行星的形成奠定基础
- DOI:10.3847/psj/ab93c4
- 发表时间:2020
- 期刊:
- 影响因子:0
- 作者:M. Kruss;G. Wurm
- 通讯作者:G. Wurm
Are Pebble Pile Planetesimals Doomed?
- DOI:10.1093/mnras/stz107
- 发表时间:2019-01
- 期刊:
- 影响因子:4.8
- 作者:T. Demirci;M. Kruss;J. Teiser;T. Bogdan;F. Jungmann;N. Schneider;G. Wurm
- 通讯作者:T. Demirci;M. Kruss;J. Teiser;T. Bogdan;F. Jungmann;N. Schneider;G. Wurm
ARISE: A granular matter experiment on the International Space Station
ARISE:国际空间站上的颗粒物质实验
- DOI:10.1063/1.5095213
- 发表时间:2019
- 期刊:
- 影响因子:1.6
- 作者:T. Steinpilz;G. Musiolik;M. Kruss;F. Jungmann;T. Demirci;M. Aderholz;J. E. Kollmer;J. Teiser;T. Bila;E. Guay;G. Wurm
- 通讯作者:G. Wurm
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Professor Dr. Gerhard Wurm其他文献
Professor Dr. Gerhard Wurm的其他文献
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{{ truncateString('Professor Dr. Gerhard Wurm', 18)}}的其他基金
Contact forces between sub-micrometer ice particles in protoplanetary environments
原行星环境中亚微米冰粒之间的接触力
- 批准号:
266114593 - 财政年份:2014
- 资助金额:
-- - 项目类别:
Research Grants
Lifting Dust on Mars by Wind and Light Induced Forces
通过风和光的诱导力扬起火星上的尘埃
- 批准号:
225970202 - 财政年份:2012
- 资助金额:
-- - 项目类别:
Research Grants
Photophoretic motion of chondrules, CAIs and large bodies in the Solar Nebula
太阳星云中球粒、CAI 和大天体的光运动
- 批准号:
145102524 - 财政年份:2010
- 资助金额:
-- - 项目类别:
Priority Programmes
Particle Lift by a Solid State Greenhouse Effect and Thermophoresis on Planetary and Protoplanetary Surfaces
行星和原行星表面的固态温室效应和热泳引起的粒子提升
- 批准号:
53838542 - 财政年份:2008
- 资助金额:
-- - 项目类别:
Research Grants
Problems of planetesimal formation, radiation pressure, gas-dust interaction and photophoresis in astrophysical and planetary environments
天体物理和行星环境中的星子形成、辐射压、气尘相互作用和光泳问题
- 批准号:
34878226 - 财政年份:2006
- 资助金额:
-- - 项目类别:
Heisenberg Fellowships
Growth beyond the meter-barrier: Aggregation and fragmentation in single and multiple high velocity collisions
超越米障的生长:单次和多次高速碰撞中的聚集和破碎
- 批准号:
35040317 - 财政年份:2006
- 资助金额:
-- - 项目类别:
Research Units
Experiments on grouth and aerodynamics of preplanetary bodies and their interaction wiith light
前行星体的生长和空气动力学及其与光相互作用的实验
- 批准号:
5210696 - 财政年份:1999
- 资助金额:
-- - 项目类别:
Independent Junior Research Groups
Ligt scattering experiments on micron-sized dust aggregates and applications to astrophysics
微米级尘埃聚集体的光散射实验及其在天体物理学中的应用
- 批准号:
5192642 - 财政年份:1999
- 资助金额:
-- - 项目类别:
Priority Programmes
Ionizing the Gas in Protoplanetary Disks by Pebble Collisions
通过卵石碰撞电离原行星盘中的气体
- 批准号:
521602700 - 财政年份:
- 资助金额:
-- - 项目类别:
Research Grants
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