Dust coagulation in protoplanetary disks: porosity matters

2006/10/02 by Chris W. Ormel, C. W. Ormel, M. Spaans +1 · 4 citations
Chemical Engineering · Engineering · Physics and Astronomy · #Accretion (finance) #Advanced Combustion Engine Technologies #Astrophysics #Astrophysics and Star Formation Studies #Combustion and flame dynamics #Compaction #Composite material #Context (archaeology) #Formation and evolution of the Solar System #Geology #Grain growth #Grain size #Materials science #Mechanics #Physics #Planet #Porosity #Turbulence #astro-ph

paper · pdf · doi:10.1051/0004-6361:20065949

21 pages, 15 figures. Accepted for publication in A&A. Abstract shortened

arxiv created 2006/10/02 · openalex publication_date 2006/10/04 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Context.Sticking of colliding dust particles through van der Waals forces is the first stage in the grain growth process in protoplanetary disks, eventually leading to the formation of comets, asteroids and planets. A key aspect of the collisional evolution is the coupling between dust and gas motions, which depends on the internal structure (porosity) of aggregates.

Citations

• A 10 μm spectroscopic survey of Herbig Ae star disks: Grain growth and crystallization
• Mid-IR spectroscopy of T Tauri stars in Chamealeon I: Evidence for processed dust at the earliest stages
• A powerful local shear instability in weakly magnetized disks. I - Linear analysis. II - Nonlinear evolution
• The building blocks of planets within the ‘terrestrial’ region of protoplanetary disks
• Star Formation in Molecular Clouds: Observation and Theory

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