Open Access
Table 2
Parameters for evolved PWNe.
| PWN | HESS J1813-178 | G54.1+0.3 | G292.0+1.8 | G0.9+0.1 | MSH 15-52 | N 157B | |
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| Pulsar and ejecta parameters | |||||||
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| P (ms) | 44.7 | 136.85 | 135.31 | 52.2 | 150 | 16.12 | |
 (s s-1) |
1.26 × 10-13 | 7.51 × 10-13 | 7.47 × 10-13 | 1.56 × 10-13 | 1.50 × 10-12 | 5.13 × 10-14 | |
| n | 3.0 | 3.0 | 3.0 | 3.0 | 1.4 | 3.0 | |
| τc (yr) | 5624 | 2889 | 2872 | 5305 | 1585 | 4982 | |
| L(t) (erg s-1) | 5.56 × 1037 | 1.16 × 1037 | 1.19 × 1037 | 4.32 × 1037 | 1.75 × 1037 | 4.83 × 1038 | |
| Tage (yr) | 2500 | 2600 | 2700 | 3000 | 4000 | 4600 | |
| L0 (erg s-1) | 1.80 × 1038 | 1.15 × 1039 | 3.32 × 1039 | 2.29 × 1038 | 1.18 × 1039 | 8.21 × 1040 | |
| τ0 (yr) | 3124 | 289 | 172 | 2305 | 3927 | 382 | |
| Mej(M⊙) | 8.0 | 20.0 | 18.0 | 14.0 | 6.0 | 20.0 | |
| ESN (1051 erg) | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | |
| nH (cm3) | 1.0 | 1.0 | 0.5 | 0.01 | 0.01 | 0.03 | |
| d (kpc) | 4.7 | 7.0 | 6.0 | 13.3 | 4.4 | 53.7 | |
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| Soft photon parameters | |||||||
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| TFIR (K) | 40.0 | 25.0 | 25 | 30.0 | 30.0 | 50.0 | |
| UFIR (eV cm-3) | 0.1 | 0.8 | 1.0 | 3.8 | 1.2 | 5.0 | |
| TNIR (K) | 4000.0 | 3000.0 | 2800 | 3000.0 | 3000.0 | 5000.0 | |
| UNIR (eV cm-3) | 0.5 | 1.1 | 0.7 | 25.0 | 2.2 | 4.0 | |
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| Injection parameters | |||||||
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| Eb (105 MeV) | 5.92 | 5.45 | 1.60 | 0.45 | 6.65 | 1.62 | |
| α 1 | 1.09 | 1.22 | 1.56 | 1.10 | 1.17 | 1.15 | |
| α 2 | 2.76 ± 0.02 | 2.67 ± 0.03 | 2.62 ± 0.18 | 2.52 ± 0.02 | 2.28 ± 0.02 | 2.58 ± 0.01 | |
| η B | 0.0057 ± 0.0008 | 0.0045 ± 0.0009 | 0.046 ± 0.007 | 0.029 ± 0.004 | 0.45 ± 0.03 | 0.03 ± 0.002 | |
| ϵ | 0.26 ± 0.05 | 0.26 ± 0.09 | 0.42 | 0.25 ± 0.08 | 0.56 ± 0.39 | 0.33 ± 0.05 | |
| Chi-squared χ2 | 1.58 | 0.65 | 14.98 | 0.30 | 0.60 | 2.34 | |
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| Derived parameters | |||||||
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| Emax (108 MeV) |
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| Bpwn (μG) |
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| Rpwn (pc) | 3.67 | 2.41 | 3.12 | 3.51 | 11.21 | 10.02 | |
| Rrs (pc) | 4.97 | 5.00 | 5.73 | 10.27 | 14.67 | 11.17 | |
| Rsnr (pc) | 6.97 | 6.16 | 6.97 | 12.23 | 17.88 | 13.29 | |
| Rts (pc) | 0.28 | 0.11 | 0.13 | 0.22 | 0.53 | 0.72 | |
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