Linear Waves and Gravitational Instability in Molecular Cloud Filaments

Details Linear Waves and Gravitational Instability in Molecular Cloud Filaments Linear Waves and Gravitational Instability in Molecular Cloud Filaments

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...183.2602g&link_type=abstract

American Astronomical Society, 183rd AAS Meeting, #26.02; Bulletin of the American Astronomical Society, Vol. 25, p.1332

Other

Scientific paper

We study axial density wave propagation along self-gravitating fluid filaments, such as those found in molecular cloud complexes. We also study the linear stability of such filaments. Using the inhomogeneous nonlinear equilibrium of a self-gravitating cylindrically symmetric fluid, we perturb the equilibrium and solve the linearized Euler equations for an inviscid fluid. Numerical solutions and dispersion relations are found for various barotropic equations of state. Observed velocity dispersions of molecular clouds suggest adding a ``turbulence'' term to the normal isothermal term, i.e. the total pressure can be written as p = cs(2) rho + p0log(rho /rho_ {0}). Finally, we discuss observable characteristics of periodic structure in filamentary molecular clouds modelled in this fashion. In particular, we consider the core spacing and the spatial profiles of the waves.

Affiliated with

Also associated with

No associations

Rating

Linear Waves and Gravitational Instability in Molecular Cloud Filaments does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Linear Waves and Gravitational Instability in Molecular Cloud Filaments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear Waves and Gravitational Instability in Molecular Cloud Filaments will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-778361