Scale-free Equilibria of Magnetized Polytropic Clouds

Details Scale-free Equilibria of Magnetized Polytropic Clouds Scale-free Equilibria of Magnetized Polytropic Clouds

1999-04-02

arxiv.org/abs/astro-ph/9904028v1

Astronomy and Astrophysics

Astrophysics

31 pages, 7 figures. The Astrophysical Journal, in press

Scientific paper

10.1086/307579

We investigate the equilibrium properties of self-gravitating magnetized clouds with polytropic equations of state with negative index n. In particular, we consider scale-free isopedic configurations that have constant dimensionless spherical mass-to-flux ratio lambda_r and that may constitute ``pivotal'' states for subsequent dynamical collapse to form groups or clusters of stars. For given Gamma = 1 + 1/n, equilibria with smaller values of lambda_r are more flattened, ranging from spherical configurations with lambda_r = infinity to completely flattened states for lambda_r=1. For a given amount of support provided by the magnetic field as measured by the dimensionless parameter H_0, equilibria with smaller values of Gamma are more flattened. However, logatropic (defined by Gamma = 0) disks do not exist. The only possible scale-free isopedic equilibria with logatropic equation of state are spherical uniformly magnetized clouds.

Affiliated with

Also associated with

No associations

Rating

Scale-free Equilibria of Magnetized Polytropic Clouds 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 Scale-free Equilibria of Magnetized Polytropic Clouds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scale-free Equilibria of Magnetized Polytropic Clouds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-109913