Table 1.
Summary of parameters used in the modeling of PWNe, halos, and SNRs.
| Parameter | Value |
|---|---|
| PWNe | |
| Nebular magnetic field initial strength B0 (G) | 5 × 10−5 |
| Nebular magnetic field evolution index δB | 0.6 |
| Injection distribution SPWN | BPLEC |
| Injection distribution index below break α1 | 1.5 |
| Injection distribution index above break α2 | 𝒰(2.4, 0.4) |
| Injection distribution break energy Ebrk (GeV) | 100 |
| Injection distribution cutoff energy Ecut (TeV) | 𝒰(500, 300) |
| Injection efficiency ηPWN (%) | 𝒰(70, 30) |
| PWN age limit τPWN (yr) | 105 |
| Halos | |
| Suppressed diffusion region size RSDR (pc) | 30 or 50 or 80 |
Suppressed diffusion normalization at 100 TeV  (cm2 s−1) |
4 × 1027 or 4 × 1028 |
Average interstellar diffusion normalization at 100 TeV  (cm2 s−1) |
2 × 1030 |
| Diffusion rigidity scaling index δD | 1/3 |
| Injection distribution SHALO | SHALO = SPWN |
| Injection efficiency ηHALO | ηHALO = ηPWN |
| Injection start time τINJ (yr) | τINJ = τEXIT |
| Halo age limit τHALO (yr) | 4 × 105 |
| SNRs | |
| Ejecta mass Mej (M⊙) | 1.4 M⊙/5 M⊙ for SNe Ia/ccSNe |
| Ejecta energy Eej (erg) | ℒ(51, 0.5) |
| Injection distribution SSNR | PLEC |
| Injection efficiency ηSNR (%) | 𝒰(10, 30) |
| Injection index αe, p | 𝒰(2.2, 2.4) |
| Injection electron-to-proton ratio Kep | 10−3 |
| SNR age limit τSNR (yr) | 3 × 104 |
Notes.
𝒰(μ, σ) indicates a uniform distribution with mean μ and standard deviation σ.
ℒ(μ, σ) indicates a log-normal distribution with mean of the logarithm μ and standard deviation of the logarithm σ.
(B)PLEC stands for (broken) power law with exponential cutoff.
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