Growth and form of planetary seedlings: Results from a microgravity aggregation experiment

J. Blum; G. Wurm; S. Kempf; T. Poppe; H. Klahr; T. Kozasa; M. Rott; T. Henning; J. Dorschner; R. Schräpler; H. U. Keller; W. J. Markiewicz; I. Mann; B. A.S. Gustafson; F. Giovane; D. Neuhaus; H. Fechtig; E. Grün; B. Feuerbacher; H. Kochan; L. Ratke; A. El Goresy; G. Morfill; S. J. Weidenschilling; G. Schwehm; K. Metzler; W. H. Ip

doi:10.1103/PhysRevLett.85.2426

Growth and form of planetary seedlings: Results from a microgravity aggregation experiment

J. Blum, G. Wurm, S. Kempf, T. Poppe, H. Klahr, T. Kozasa, M. Rott, T. Henning, J. Dorschner, R. Schräpler, H. U. Keller, W. J. Markiewicz, I. Mann, B. A.S. Gustafson, F. Giovane, D. Neuhaus, H. Fechtig, E. Grün, B. Feuerbacher, H. KochanL. Ratke, A. El Goresy, G. Morfill, S. J. Weidenschilling, G. Schwehm, K. Metzler, W. H. Ip

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摘要

The outcome of the first stage of planetary formation, which is characterized by ballistic agglomeration of preplanetary dust grains due to Brownian motion in the free molecular flow regime of the solar nebula, is still somewhat speculative. We performed a microgravity experiment flown onboard the space shuttle in which we simulated, for the first time, the onset of free preplanetary dust accumulation and revealed the structures and growth rates of the first dust agglomerates in the young solar system. We find that a thermally aggregating swarm of dust particles evolves very rapidly and forms unexpected open-structured agglomerates.

原文	???core.languages.en_GB???
頁（從 - 到）	2426-2429
頁數	4
期刊	Physical Review Letters
卷	85
發行號	12
DOIs	https://doi.org/10.1103/PhysRevLett.85.2426
出版狀態	已出版 - 2000

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10.1103/PhysRevLett.85.2426

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Blum, J., Wurm, G., Kempf, S., Poppe, T., Klahr, H., Kozasa, T., Rott, M., Henning, T., Dorschner, J., Schräpler, R., Keller, H. U., Markiewicz, W. J., Mann, I., Gustafson, B. A. S., Giovane, F., Neuhaus, D., Fechtig, H., Grün, E., Feuerbacher, B., ... Ip, W. H. (2000). Growth and form of planetary seedlings: Results from a microgravity aggregation experiment. Physical Review Letters, 85(12), 2426-2429. https://doi.org/10.1103/PhysRevLett.85.2426

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abstract = "The outcome of the first stage of planetary formation, which is characterized by ballistic agglomeration of preplanetary dust grains due to Brownian motion in the free molecular flow regime of the solar nebula, is still somewhat speculative. We performed a microgravity experiment flown onboard the space shuttle in which we simulated, for the first time, the onset of free preplanetary dust accumulation and revealed the structures and growth rates of the first dust agglomerates in the young solar system. We find that a thermally aggregating swarm of dust particles evolves very rapidly and forms unexpected open-structured agglomerates.",

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Blum, J, Wurm, G, Kempf, S, Poppe, T, Klahr, H, Kozasa, T, Rott, M, Henning, T, Dorschner, J, Schräpler, R, Keller, HU, Markiewicz, WJ, Mann, I, Gustafson, BAS, Giovane, F, Neuhaus, D, Fechtig, H, Grün, E, Feuerbacher, B, Kochan, H, Ratke, L, El Goresy, A, Morfill, G, Weidenschilling, SJ, Schwehm, G, Metzler, K & Ip, WH 2000, 'Growth and form of planetary seedlings: Results from a microgravity aggregation experiment', Physical Review Letters, 卷 85, 編號 12, 頁 2426-2429. https://doi.org/10.1103/PhysRevLett.85.2426

TY - JOUR

T1 - Growth and form of planetary seedlings

T2 - Results from a microgravity aggregation experiment

AU - Blum, J.

AU - Wurm, G.

AU - Kempf, S.

AU - Poppe, T.

AU - Klahr, H.

AU - Kozasa, T.

AU - Rott, M.

AU - Henning, T.

AU - Dorschner, J.

AU - Schräpler, R.

AU - Keller, H. U.

AU - Markiewicz, W. J.

AU - Mann, I.

AU - Gustafson, B. A.S.

AU - Giovane, F.

AU - Neuhaus, D.

AU - Fechtig, H.

AU - Grün, E.

AU - Feuerbacher, B.

AU - Kochan, H.

AU - Ratke, L.

AU - El Goresy, A.

AU - Morfill, G.

AU - Weidenschilling, S. J.

AU - Schwehm, G.

AU - Metzler, K.

AU - Ip, W. H.

PY - 2000

Y1 - 2000

N2 - The outcome of the first stage of planetary formation, which is characterized by ballistic agglomeration of preplanetary dust grains due to Brownian motion in the free molecular flow regime of the solar nebula, is still somewhat speculative. We performed a microgravity experiment flown onboard the space shuttle in which we simulated, for the first time, the onset of free preplanetary dust accumulation and revealed the structures and growth rates of the first dust agglomerates in the young solar system. We find that a thermally aggregating swarm of dust particles evolves very rapidly and forms unexpected open-structured agglomerates.

AB - The outcome of the first stage of planetary formation, which is characterized by ballistic agglomeration of preplanetary dust grains due to Brownian motion in the free molecular flow regime of the solar nebula, is still somewhat speculative. We performed a microgravity experiment flown onboard the space shuttle in which we simulated, for the first time, the onset of free preplanetary dust accumulation and revealed the structures and growth rates of the first dust agglomerates in the young solar system. We find that a thermally aggregating swarm of dust particles evolves very rapidly and forms unexpected open-structured agglomerates.

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M3 - 期刊論文

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SN - 0031-9007

VL - 85

SP - 2426

EP - 2429

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

ER -

Growth and form of planetary seedlings: Results from a microgravity aggregation experiment

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