Radio emission and particle acceleration in plerionic supernova remnants

Details Radio emission and particle acceleration in plerionic supernova remnants Radio emission and particle acceleration in plerionic supernova remnants

2004-05-13

arxiv.org/abs/astro-ph/0405251v1

Astron.Astrophys. 423 (2004) 13-19

Astronomy and Astrophysics

Astrophysics

8 pages, 7 Figures, to be published in A&A

Scientific paper

10.1051/0004-6361:20047065

Plerionic supernova remnants exhibit radio emission with remarkably flat spectral indices ranging from $\alpha=0.0$ to $\alpha=-0.3$. The origin of very hard particle energy distributions still awaits an explanation, since shock waves generate particle distributions with synchrotron spectra characterized by $\alpha\le-0.5$. Acceleration of high energy leptons in magnetohydrodynamic turbulence instead may be responsible for the observed hard spectra. This process is studied by means of relativistic test particle calculations using electromagnetic fields produced by three-dimensional simulations of resistive magnetohydrodynamical turbulence. The particles receive power-law energy spectra $N(\gamma)\propto \gamma^{-s}$ with $s$ ranging from 1.2 to 1.6, i.e. particle spectra that are required to explain the radio emission of plerions.

Affiliated with

Also associated with

No associations

Rating

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

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-618037