Giant Molecular Cloud Formation through the Parker Instability in a Skewed Magnetic Field

Details Giant Molecular Cloud Formation through the Parker Instability in a Skewed Magnetic Field Giant Molecular Cloud Formation through the Parker Instability in a Skewed Magnetic Field

1992-05-02

arxiv.org/abs/astro-ph/9205002v1

Astrophys.J. 393 (1992) L71-L74

Astronomy and Astrophysics

Astrophysics

12 pages

Scientific paper

10.1086/186454

The effect of the magnetic skew on the Parker instability is investigated by means of the linear stability analysis for a gravitationally stratified gas layer permeated by a horizontal magnetic field. When the magnetic field is skewed (i.e., the field line direction is a function of the height), the wavelength of the most unstable mode is $ \lambda \; \sim \; 10 H $ where $ H $ is the pressure scale height. The growth rate of the short wavelength modes is greatly reduced when the gradient in the magnetic field direction exceeds 0.5 radian per scale height. Our results indicate that the Parker instability in a skewed magnetic field preferentially forms large scale structures like giant molecular clouds.

Affiliated with

Also associated with

No associations

Rating

Giant Molecular Cloud Formation through the Parker Instability in a Skewed Magnetic Field 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 Giant Molecular Cloud Formation through the Parker Instability in a Skewed Magnetic Field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Giant Molecular Cloud Formation through the Parker Instability in a Skewed Magnetic Field will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-136781