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Table 4.
Parameters of the PWN model.
| Par. | Description | Value |
|---|---|---|
| Input parameters | ||
| d | Pulsar distance (a) | 3.3 kpc |
| Ė | Pulsar spin-down power (a) | 1.8 × 1036 erg s−1 |
| τc | Pulsar characteristic age (a) | 51.4 kyr |
| P | Pulsar period (a) | 82.76 ms |
| Ṗ | Pulsar period derivative (a) | 2.55 × 10−14 s s−1 |
| n | Pulsar braking index (b) | 3 |
| Adjusted parameters | ||
| θ | Electron power fraction | 0.6 |
| B | Magnetic field | 4 μG |
| P0 | Pulsar birth period | 50 ms |
| Ec | Cutoff energy | 420 TeV |
| α | Injection spectrum index | 2.0 |
| τyoung | Age of young e− | 1.2 kyr |
| τmed | Age of medium-age e− | 4.7 kyr |
Notes. Pulsar parameters denote present-day values unless otherwise specified. The parameter values for the ‘adjusted’ parameters were obtained using an MCMC method, but should be regarded as indicative values rather than precise fit results (see main text).
(a)
Taken from Manchester et al. (2005).
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