2006A&A...451..981B


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.05CEST10:43:46

2006A&A...451..981B - Astronomy and Astrophysics, volume 451, 981-990 (2006/6-1)

Theory of cosmic ray production in the supernova remnant RX J1713.7-3946.

BEREZHKO E.G. and VOELK H.J.

Abstract (from CDS):

A nonlinear kinetic theory of cosmic ray (CR) acceleration in supernova remnants (SNRs) is employed to investigate the properties of SNR RX J1713.7-3946. Observations of the nonthermal radio and X-ray emission spectra as well as the HESS measurements of the very high energy γ-ray emission are used to constrain the astronomical and the particle acceleration parameters of the system. Under the assumptions that RX J1713.7-3946 was a core collapse supernova (SN) of type II/Ib with a massive progenitor, has an age of ≃1600yr and is at a distance of ≃1kpc, the theory gives indeed a consistent description for all the existing observational data. Specifically it is shown that an efficient production of nuclear CRs, leading to strong shock modification, and a large downstream magnetic field strength Bd∼100µG can reproduce in detail the observed synchrotron emission from radio to X-ray frequencies together with the γ-ray spectral characteristics as observed by the HESS telescopes. Small-scale filamentary structures observed in nonthermal X-rays provide empirical confirmation for the field amplification scenario which leads to a strong depression of the inverse Compton and Bremsstrahlung fluxes. Going beyond that and using a semi-empirical relation for young SNRs between the resulting CR pressure and the amplified magnetic field energy upstream of the outer SN shock as well as a moderate upper bound for the mechanical explosion energy, it is possible to also demonstrate the actual need for a considerable shock modification in RX J1713.7-3946. It is consistent with RX J1713.7-3946 being an efficient source of nuclear cosmic rays.

Abstract Copyright:

Journal keyword(s): cosmic rays - acceleration of particles - supernovae: individual: SNR RX J1713.7-3946 - gamma rays: theory - shock waves - X-rays: stars

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 SN 1572A SN* 00 25 21.5 +64 08 27           B8 1071 1
2 NAME Lupus SN SNR 15 02 22.1 -42 05 49           ~ 1207 1
3 SNR G347.3-00.5 SNR 17 12 27 -39 41.2           ~ 607 1
4 RX J1713.4-3949 X 17 13 28 -39 49.8           ~ 32 0
5 SNR G348.5+00.1 SNR 17 14 31.780 -38 28 34.50           ~ 198 3
6 NAME Cas A SNR 23 23 24.000 +58 48 54.00           ~ 2413 1

    Equat.    Gal    SGal    Ecl

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2020.07.05-10:43:46

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