Forbidden planetesimals
Planetesimals are born fragile and are subject to destruction by wind erosion as they move through the gas of a protoplanetary disk. In microgravity experiments, we determined the shear stress necessary for erosion of a surface consisting of 1 mm dust pebbles down to 1 Pa ambient pressure. This is d...
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Cornell University Library, arXiv.org
05.05.2023
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| Abstract | Planetesimals are born fragile and are subject to destruction by wind erosion as they move through the gas of a protoplanetary disk. In microgravity experiments, we determined the shear stress necessary for erosion of a surface consisting of 1 mm dust pebbles down to 1 Pa ambient pressure. This is directly applicable to protoplanetary disks. Even pebble pile planetesimals with low eccentricities of 0.1 cannot survive inside of 1 au in a minimum-mass solar nebula, and safe zones for planetesimals with higher eccentricities are located even farther out. |
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| AbstractList | Planetesimals are born fragile and are subject to destruction by wind erosion as they move through the gas of a protoplanetary disk. In microgravity experiments, we determined the shear stress necessary for erosion of a surface consisting of 1 mm dust pebbles down to 1 Pa ambient pressure. This is directly applicable to protoplanetary disks. Even pebble pile planetesimals with low eccentricities of 0.1 cannot survive inside of 1 au in a minimum-mass solar nebula, and safe zones for planetesimals with higher eccentricities are located even farther out. A6A 672, A169 (2023) Planetesimals are born fragile and are subject to destruction by wind erosion as they move through the gas of a protoplanetary disk. In microgravity experiments, we determined the shear stress necessary for erosion of a surface consisting of 1 mm dust pebbles down to 1 Pa ambient pressure. This is directly applicable to protoplanetary disks. Even pebble pile planetesimals with low eccentricities of 0.1 cannot survive inside of 1 au in a minimum-mass solar nebula, and safe zones for planetesimals with higher eccentricities are located even farther out. |
| Author | Schönau, Laurent Bila, Tetyana Teiser, Jens Wurm, Gerhard Onyeagusi, F Chioma Fritscher, Miriam Demirci, Tunahan Joeris, Kolja |
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| BackLink | https://doi.org/10.48550/arXiv.2305.03562$$DView paper in arXiv https://doi.org/10.1051/0004-6361/202245499$$DView published paper (Access to full text may be restricted) |
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| Copyright | 2023. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. http://arxiv.org/licenses/nonexclusive-distrib/1.0 |
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| DOI | 10.48550/arxiv.2305.03562 |
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| Snippet | Planetesimals are born fragile and are subject to destruction by wind erosion as they move through the gas of a protoplanetary disk. In microgravity... A6A 672, A169 (2023) Planetesimals are born fragile and are subject to destruction by wind erosion as they move through the gas of a protoplanetary disk. In... |
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| SubjectTerms | Microgravity Physics - Earth and Planetary Astrophysics Physics - Instrumentation and Methods for Astrophysics Planet formation Pressure Protoplanetary disks Shear stress Solar nebula Wind erosion |
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| Title | Forbidden planetesimals |
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