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Birth ring dynamics

Birth ring dynamics. Collisional generation of dust grains balances destruction by: 1. Radiation drag 2. Wind drag 3. Collisions. birth ring. daughter dust particle. Strubbe & Chiang, 2006, ApJ, 648, 652. Noise-to-Signal: Brownian Migration.

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Birth ring dynamics

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  1. Birth ring dynamics Collisional generation of dust grains balances destruction by: 1. Radiation drag 2. Wind drag 3. Collisions birth ring daughter dust particle Strubbe & Chiang, 2006, ApJ, 648, 652

  2. Noise-to-Signal: Brownian Migration Next frontier in migration in planetesimal disks Bumpy roller coaster ride << here implies a margin of safety of two orders of magnitude in sub-Hill case Noisy migration Murray-Clay & Chiang 2006, ApJ, 651, 1194

  3. Brownian Motion and Resonance Capture Next frontier in migration in planetesimal disks Bumpy roller coaster ride << here implies a margin of safety of two orders of magnitude in sub-Hill case Analytic theory Numerical integrations Murray-Clay & Chiang 2006, ApJ, 651, 1194 Chiang et al. 2007 review chapter for Protostars and Planet V

  4. Numerical simulations of packed systems Dynamical friction force applied every disk plane crossing Disk surface density constant 3ejections To produce solar-system-like outcomes requires disk masses ~ 1% planet masses Ford & Chiang 2007, ApJ, in press (astro-ph/0701745)

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