Jeans instability in the linearized Burnett regime

✍ Scribed by A. Sandoval-Villalbazo; L.S. García-Colín

• Book ID: 103881605
• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 200 KB
• Volume: 347
• Category: Article
• ISSN: 0378-4371
• DOI: 10.1016/j.physa.2004.08.022

✦ Synopsis

Jeans instability is derived for the case of a low-density self-gravitating gas beyond the Navier-Stokes equations. The Jeans instability criterium is shown to depend on a Burnett coefficient if the formalism is taken up to fourth order in the wave number. It is also shown that previously known viscosity corrections to the Jeans wave-number are enhanced if the full fourth-order formalism is applied to the stability analysis.