Cosmic-Ray Evolution in Parker-unstable Galactic Magnetic Fields

Details Cosmic-Ray Evolution in Parker-unstable Galactic Magnetic Fields Cosmic-Ray Evolution in Parker-unstable Galactic Magnetic Fields

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apj...543..235h&link_type=abstract

The Astrophysical Journal, Volume 543, Issue 1, pp. 235-244.

Astronomy and Astrophysics

Astronomy

37

Ism: Magnetic Fields, Magnetic Fields

Scientific paper

We discuss the Parker instability of the Galactic interstellar medium, focusing on the cosmic-ray gas injection by supernova remnants and its propagation, through the diffusion equation. We describe the Parker instability in the thin flux-tube approximation and solve the flux-tube and the diffusion equations numerically. We find that the Parker instability triggered by the injection of cosmic rays in supernova remnants is faster than the Parker instability excited by the ''small vertical perturbation'' and that there is no lower limit for the horizontal scale of the raised magnetic loops. We find a very strong dynamo effect and discuss the vertical transport of cosmic rays in the Galactic disk across the large-scale horizontal magnetic field.

Affiliated with

Also associated with

No associations

Rating

Cosmic-Ray Evolution in Parker-unstable Galactic Magnetic Fields 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 Cosmic-Ray Evolution in Parker-unstable Galactic Magnetic Fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmic-Ray Evolution in Parker-unstable Galactic Magnetic Fields will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1148254