Cosmic Rays from Pulsars and Magnetars
arXiv:1005.1003 · doi:10.1111/j.1745-3933.2010.00874.x
Abstract
We compare the expected abundance of cosmic-ray electrons and positrons from pulsars and magnetars. We assume that the distribution of infant pulsars and magnetars follows that of high-mass stars in the Milky Way and that the production rate of cosmic rays is proportional to the spin-down and magnetic-decay power of pulsars and magnetars, respectively. In combination with primary and secondary cosmic-ray leptons from other sources (especially supernova remnants), we find that both magnetars and pulsars can easily account for the observed cosmic-ray spectrum, in particular the dip seen by HESS at several TeV and the increase in positron fraction found by PAMELA.
5 pages, 3 figures, accepted to MNRAS
References in corpus (9)
- Observation of an anomalous positron abundance in the cosmic radiation
- Measurement of the Cosmic Ray e+ plus e- spectrum from 20 GeV to 1 TeV with the Fermi Large Area Telescope
- The energy spectrum of cosmic-ray electrons at TeV energies
- Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S
- Corona of Magnetars
- Discovery of luminous pulsed hard X-ray emission from anomalous X-ray pulsars 1RXS J1708-4009, 4U 0142+61 and 1E 2259+586 by INTEGRAL and RXTE
- Discovery of extended X-ray emission around the highly magnetic RRAT J1819-1458
- The Birthrate of Magnetars
- Numerical Modeling of the Radio Nebula from the 2004 December 27 Giant Flare of SGR 1806-20
Cited by in corpus (11)
- Astrophysical models for the origin of the positron "excess"
- TeV cosmic ray electrons from millisecond pulsars
- Double-layer shocks in a magnetized quantum plasma
- Utilizing cosmic-ray positron and electron observations to probe the averaged properties of Milky Way pulsars
- Cosmic ray positrons from a local, middle-aged supernova remnant
- High-energy gamma-ray emission from SNR G57.2+0.8 hosting SGR J1935+2154
- On the PeV knee of cosmic rays spectrum and TeV cutoff of electron spectrum
- Revisiting GeV-scale annihilating dark matter with the AMS-02 positron fraction
- Observing Signals of Spectral Features in the Cosmic-Ray Positrons and Electrons from Milky Way Pulsars
- Prospects for gamma-ray emission from magnetar regions in CTAO observations
- Possible counterpart signal of the Fermi bubbles at the cosmic-ray positrons