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Table 5.
Best-fit parameters of π0 decay-dominated VHE-UHE emission of LHAASO J2108+5157 for both molecular clouds in the direction of the source.
| Parameter | Best fit value |
Frozen | |
|---|---|---|---|
| Cloud 1 | Cloud 2 | ||
| n [cm−3] | 115 | 240 | True |
| d [kpc] | 3.1 | 2.0 | True |
| R [pc] | 7.1 | 4.5 | True |
| γmin [×105] | 1.6 ± 0.5 | 1.6 ± 5 | False |
| γmax [×106] | 1.0 | 1.0 | True |
| B [mG] | 9 ± 5 | ≤8 | False |
| N [×10−15 cm−3] | 4 ± 1 | 3 ± 1 | False |
| α | 2.75 | 2.75 | True |
Notes. The injected protons are assumed to be distributed according to ECPL with γ-factor in the range (γmin, γmax), cutoff at γcut, spectral index α, and total numeric density N.
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