1 / 4

Dynamics of Dust Grain Generation and Destruction in Birth Rings

This study focuses on the collisional processes involved in the generation and destruction of dust grains within birth rings surrounding celestial bodies. It explores the balance between dust grain creation and degradation mechanisms, including radiation drag, wind drag, and collisions. The research, conducted by Strubbe and Chiang in 2006, delves into the noise-to-signal aspects of Brownian migration and the implications of noisy migration for planetesimal disks. Additionally, it addresses the intricacies of Brownian motion, resonance capture, and the impacts of dynamical friction forces on disk systems. Analytic theories and numerical integrations are employed to simulate packed systems and understand the conditions required for solar-system-like outcomes. This comprehensive review chapter provides insights into the dynamics of dust grain evolution in birth rings.

scard
Download Presentation

Dynamics of Dust Grain Generation and Destruction in Birth Rings

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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)

More Related