Magnetohydrodynamic turbulence in supernova remnants

Details Magnetohydrodynamic turbulence in supernova remnants Magnetohydrodynamic turbulence in supernova remnants

2008-11-10

arxiv.org/abs/0811.1466v2

2009, MNRAS, 393, L26

Astronomy and Astrophysics

Astrophysics

6 pages, 1 table, 5 figures. Corrected minor typos. Accepted for publication in MNRAS Letters. The definitive version will be

Scientific paper

10.1111/j.1745-3933.2008.00591.x

We present estimates of the angular power spectra of the synchrotron radiation intensity fluctuations at 6 and 20 cm for the shell type supernova remnant Cas A and the filled-centre Crab supernova remnant. We find that the intensity fluctuations of both sources have a power law power spectrum with index -3.24 +/- 0.03. This power law power spectrum is consistent with the magnetohydrodynamic turbulence in the synchrotron emitting plasma. For Cas A, there is a break in the power spectrum and the power law index changes from -3.2 to -2.2 at large angular scale. This transition occurs at an angular scale that corresponds to the shell thickness of Cas A. We interpret this as a transition from three dimensional turbulence to two dimensional turbulence on scales that are respectively smaller and larger than the shell thickness.

Affiliated with

Also associated with

No associations

Rating

Magnetohydrodynamic turbulence in supernova remnants 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 Magnetohydrodynamic turbulence in supernova remnants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetohydrodynamic turbulence in supernova remnants will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-542529