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arXiv · 1004.2555

Nonthermal properties of supernova remnant G1.9+0.3

L. T. Ksenofontov·H. J. Voelk·E. G. Berezhko
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Abstract

The properties of the - presumably - youngest Galactic supernova remnant (SNR) G1.9+0.3 are investigated within the framework of nonlinear kinetic theory of cosmic ray acceleration in SNRs. The observed angular size and expansion speed as well as the radio and X-ray emission measurements are used to determine relevant physical parameters of this SNR. Under the assumption that SNR G1.9+0.3 is the result of a Type Ia supernova near the Galactic center (at the distance d=8.5 kpc) the nonthermal properties are calculated. In particular, the expected TeV gamma-ray spectral energy density is predicted to be as low as $ε_γF_γ \approx 5\times 10^{-15}$ erg cm$^{-2}$ s$^{-1}$, strongly dependent ($F_γ\propto d^{-11}$) upon the source distance d.

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L. T. Ksenofontov, H. J. Voelk, E. G. Berezhko. 2010-04-15. Nonthermal properties of supernova remnant G1.9+0.3. https://doi.org/10.1088/0004-637x%2F714%2F2%2F1187

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