2007/07/31 by E. G. Berezhko, Berezhko, E. G., H. J. Völk +1 · 1 citation
Physics and Astronomy · #Astrophysics (astro-ph) #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #Gamma-ray bursts and supernovae #Solar and Space Plasma Dynamics #astro-ph
paper · pdf · doi:10.48550/arxiv.0707.4647
4 pages, 2 figures, 1 conference logo, contributed paper to the 30th International Cosmic Ray Conference in Merida, Mexico, July 2007
arxiv created 2007/07/31 · openalex publication_date 2007/07/31 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Explicitly time-dependent, nonlinear kinetic theory of cosmic ray (CR) acceleration in supernova remnants (SNRs) has been employed to investigate the properties of SNR RX J1713.7-3946. Observations of the nonthermal radio and X-ray emission spectra as well as earlier H.E.S.S. measurements of the very high energy γ-ray emission were used to constrain the astronomical and the particle acceleration parameters of the system. The model assumes that the object was a core collapse supernova (SN) with a massive progenitor, has an age of ≈ 1600 yr and is at a distance of ≈ 1 kpc. It is shown that an efficient production of nuclear CRs, leading to strong shock modification and a large downstream magnetic field strength Bd∼100 μG, can reproduce the observed synchrotron emission from radio to X-ray frequencies together with the \gr spectral characteristics as observed by the H.E.S.S. telescopes. Small-scale filamentary structures observed in nonthermal X-rays provide empirical confirmation for this field amplification scenario which leads to a strong depression of the inverse Compton and Bremsstrahlung fluxes. The results are compared with the latest H.E.S.S. observations.