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Forbidden planetesimals

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arxiv 2305.03562 v1 pith:JA56Q24B submitted 2023-05-05 astro-ph.EP astro-ph.IM

Laurent Schönau , Jens Teiser , Tunahan Demirci , Kolja Joeris , Tetyana Bila , F. Chioma Onyeagusi , Miriam Fritscher , Gerhard Wurm This is my paper
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keywords planetesimalseccentricitieserosionevenprotoplanetaryambientapplicableborn
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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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