Astronomy and Astrophysics – Astrophysics – High Energy Astrophysical Phenomena
Scientific paper
2011-03-29
Astrophys.J.733, 119(2011)
Astronomy and Astrophysics
Astrophysics
High Energy Astrophysical Phenomena
8 pages, 8 eps figures; extended version of arXiv:1004.1118; v2: minor corrections, matches published version
Scientific paper
We calculate the energy spectra of cosmic rays (CR) and their secondaries produced in a supernova remnant (SNR), taking into account the time-dependence of the SNR shock. We model the trajectories of charged particles as a random walk with a prescribed diffusion coefficient, accelerating the particles at each shock crossing. Secondary production by CRs colliding with gas is included as a Monte Carlo process. We find that SNRs produce less antimatter than suggested previously: The positron/electron ratio and the antiproton/proton ratio are a few percent and few $\times 10^{-5}$, respectively. Moreover, the obtained positron/electron ratio decreases with energy, while the antiproton/proton ratio rises at most by a factor of two above 10 GeV.
Kachelriess Michael
Ostapchenko Sergey
Tomas Ricard
No associations
LandOfFree
Antimatter production 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 Antimatter production in supernova remnants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antimatter production in supernova remnants will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-566493