Planetary accretion rates: Analytical derivation

Richard Greenberg, William F. Bottke, Andrea Carusi, G. B. Valsecchi

Research output: Contribution to journalArticlepeer-review

56 Scopus citations


Analytic formulae for estimating planetary accretion rates have long been available for conditions where random motion of planetesimals controls velocities relative to a growing planet. Recent Monte Carlo studies have explored a wider range of conditions, but gave impact rates only for the specific conditions under which those numerical experiments were performed. Now analytical formulae, which are valid even when keplerian shear controls the approach velocity, and which accurately reproduce the Monte Carlo results, give accretion rates over a wide range of conditions relevant to the problem of planet formation.

Original languageEnglish (US)
Pages (from-to)98-111
Number of pages14
Issue number1
StatePublished - Nov 1991

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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