Pumping of a planetesimal disc by a rapidly migrating planet

Sep, 2004
Published in:
  • Mon.Not.Roy.Astron.Soc. 354 (2004) 769
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Abstract: (arXiv)
We examine the effect of a rapidly migrating protoplanet on a ring of planetesimals. The eccentricities of the planetesimals are usually increased by Δe(0.01,0.1)\Delta e \in (0.01, 0.1), with the exact increase being proportional to the protoplanet's mass, and inversely proportional to its migration rate. The eccentricity distribution is also substantially changed from a Rayleigh distribution. We discuss the possible implications for further planet formation, and suggest that the rapid passage of a protoplanet may not prevent the planetesimal disc from forming further planets.