On radial migration of dense regions and objects and local unstability of accreting systems

2009/06/21 by Tobias Hartung, T. Hartung, Hartung, T.
Physics and Astronomy · #Astro and Planetary Science #Astrophysical Phenomena and Observations #Astrophysics and Star Formation Studies #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #astro-ph.GA

paper · pdf · doi:10.48550/arxiv.0906.3859

5 pages, strongly linked to arXiv:0906.1119v2 [astro-ph.GA]

arxiv created 2009/06/21 · openalex publication_date 2009/06/21 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

I have used a newtonian infinite body problem to model a protoplanitary-like hot accretion disk and added terms of laminar and Stokes friction. Then I used qualitative methods to show the unstability of local regions leading to a lemma of radial migration and local unstability in hot, proto-planetary-like accretion disks. Then I considered a general infinite body problem with a position dependent, gravitation-like force and a general perturbating term.

Citations

• On radial motion of dense regions and objects in protoplanitary-like disks

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