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

Graduate Institute of Astronomy

Research output: Contribution to journal › Article › peer-review

198 Scopus citations

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.

Original language	English
Pages (from-to)	2426-2429
Number of pages	4
Journal	Physical Review Letters
Volume	85
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.85.2426
State	Published - 2000

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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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title = "Growth and form of planetary seedlings: Results from a microgravity aggregation experiment",

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, vol. 85, no. 12, pp. 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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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

Abstract

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