The Jeans Mechanism and bulk-viscosity effects

N. Carlevaro, G. Montani

Research output: Contribution to conferencePaper

Abstract

In this paper we study the gravitational instability in presence of viscosity. In particular, the standard Jeans Mechanism is analyzed taking into account bulk-viscosity effects in the first-order Newtonian dynamics. We show how the perturbation evolution is dumped by dissipative processes and the top-down fragmentation mechanism is suppressed for strong viscous effects. The critical value of the Jeans Mass remains unchanged also in presence of bulk viscosity.
Original languageEnglish
Publication statusPublished - 2011
Externally publishedYes
Event3rd Stueckelberg Workshop on Relativistic Field Theories - Pescara, Italy
Duration: 1 Jan 2011 → …

Conference

Conference3rd Stueckelberg Workshop on Relativistic Field Theories
CountryItaly
CityPescara
Period1/1/11 → …

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All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Nuclear and High Energy Physics

Cite this

Carlevaro, N., & Montani, G. (2011). The Jeans Mechanism and bulk-viscosity effects. Paper presented at 3rd Stueckelberg Workshop on Relativistic Field Theories, Pescara, Italy.