Open Access
Table 1
Parameters for young PWNe.
| PWN | N 158A | G21.5-0.9 | Crab nebula | Kes 75 | G310.6-1.6 | 3C 58 | |
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| Pulsar and ejecta parameters | |||||||
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| P (ms) | 50.5 | 61.8 | 33.4 | 324.0 | 31.18 | 65.7 | |
| Ṗ (s s-1) | 4.79 × 10-13 | 2.02 × 10-13 | 4.23 × 10-13 | 7.08 × 10-12 | 3.89 × 10-14 | 1.93 × 10-13 | |
| n | 2.129 | 3.0 | 2.509 | 2.19 | 3.0 | 3.0 | |
| τc (yr) | 1671 | 4850 | 1296 | 726 | 12 708 | 5397 | |
| L(t) (erg s-1) | 1.47 × 1038 | 3.38 × 1037 | 4.53 × 1038 | 8.21 × 1036 | 5.06 × 1037 | 2.68 × 1037 | |
| Tage (yr) | 760 | 900 | 940 | 1000 | 1500 | 2400 | |
| L0 (erg s-1) | 3.34 × 1038 | 5.09 × 1037 | 3.1 × 1039 | 8.11 × 1038 | 6.51 × 1037 | 8.69 × 1037 | |
| τ0 (yr) | 2201 | 3950 | 730 | 220 | 11 208 | 2997 | |
| M ej (M⊙) | 23.0 | 8.0 | 9.5 | 10.0 | 13.0 | 8.0 | |
| ESN (1051 erg) | 2.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | |
| nH (cm3) | 0.01 | 0.1 | 0.1 | 0.1 | 0.01 | 0.01 | |
| d (kpc) | 49 | 4.1 | 2.0 | 5.8 | 7.0 | 2.0 | |
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| Soft photon parameters | |||||||
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| TFIR (K) | 88.0 | 35.0 | 70.0 | 30.0 | 40.0 | 40.0 | |
| UFIR (eV cm-3) | 1.0 | 1.4 | 0.5 | 1.2 | 0.3 | 0.3 | |
| TNIR (K) | 5000.0 | 3500.0 | 5000.0 | 3000.0 | 4000.0 | 4000.0 | |
| UNIR (eV cm−3) | 1.0 | 5.0 | 1.0 | 2.2 | 0.3 | 0.3 | |
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| Injection parameters | |||||||
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| Eb (105 MeV) | 150.00 | 1.52 | 6.26 | 2.13 | 6.50 | 0.61 | |
| α1 | 1.75 | 1.00 | 1.59 | 1.55 | 1.06 | 1.03 | |
| α2 | 2.31 ± 0.19 | 2.63 ± 0.01 | 2.42 ± 0.01 | 2.09 ± 0.03 | 2.71 ± 0.06 | 3.07 ± 0.02 | |
| η B | 0.0014 ± 0.0004 | 0.046 ± 0.006 | 0.040 ± 0.001 | 0.0019 ± 0.0004 | 0.0017 ± 0.0002 | 0.061 ± 0.008 | |
| ϵ | 0.30 | 0.32 ± 0.04 | 0.14 ± 0.01 | 0.58 ± 0.23 | 0.12 | 0.064 ± 0.045 | |
| Chi-squared χ2 | 0.20 | 1.35 | 5.73 | 2.08 | 4.88 | 1.91 | |
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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) | 0.68 | 0.86 | 1.95 | 0.99 | 1.32 | 3.05 | |
| Rrs (pc) | 4.64 | 4.04 | 4.00 | 4.12 | 6.58 | 10.03 | |
| Rsnr (pc) | 5.52 | 4.81 | 4.76 | 4.91 | 7.83 | 11.93 | |
| Rts (pc) | 0.05 | 0.06 | 0.20 | 0.05 | 0.09 | 0.23 | |
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