Open Access
Table 2
Assumed parameters of the model.
| Description | Parameter | Value |
|---|---|---|
| Proton power law spectral index | a | 2.0 |
| Index characterising energy | δ | 0.5 |
| -dependence of diffusion | ||
| Index characterising momentum | β | 2.5 |
| -dependence of particle escape | ||
| Diffusion suppression factor | χ | 0.1 or 1 |
| due to turbulence | ||
| Diffusion coefficient | D0 | 3 × 1026 cm2 s−1 |
| normalisation at 1 GeV | ||
| ISM particle density | nISM | 1 cm−3 |
| Maximum particle momentum | PM | 3 PeVc−1 |
| Sedov time (type II SNR) | tsed | 1.6 kyr |
| Sedov time (type Ia SNR) | tsed | 234 yr |
Notes. The value adopted for D0 is taken from Gabici et al. (2007).
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