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Planetesimal Capture in the Disk Instability Model by Ravit Helled; Morris Podolak; Attay Kovetz is a Physics and Astronomy article available to read on EtoBox.
What is Planetesimal Capture in the Disk Instability Model about?
We follow the contraction and evolution of a typical Jupiter-mass clump created by the disk instability mechanism, and compute the rate of planetesimal capture during this evolution. We show that such a clump has a slow contraction phase lasting ∼3 × 10 5 yr. By following the trajectories of planetesimals as they pass through the envelope of the protoplanet, we compute the cross-section for planetesimal capture at all stages of the protoplanet's evolution. We show that the protoplanet can capture a large fraction of the solid material in its feeding zone, which will lead to an enrichment of the protoplanet in heavy elements. The exact amount of this enrichment depends upon, but is not very sensitive to the size and random speed of the planetesimals.
Who reads Planetesimal Capture in the Disk Instability Model?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- Ravit Helled; Morris Podolak; Attay Kovetz
- Publisher
- Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV; Oxford University Press (OUP) (ISSN 0019-1035)
- Published
- 2006
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)