Table C.1.
Spectral model fitting parameters of J0309+2717 and J172+18.
| α | a | νp (MHz) | β | νb (MHz) | BIC | |
|---|---|---|---|---|---|---|
| J0309+2717 | ||||||
| Homogeneous FFA |
 |
30000 |
170 |
220 | ||
| Homogeneous SSA | 170 |
210 |
2.92 |
260 | ||
| Internal FFA |
 |
33000 |
300 |
190 | ||
| Homogeneous FFA + break |
 |
3000 |
110 |
28000 |
89 | |
| J172+18 | ||||||
| Homogeneous FFA |
 |
5900 |
260 |
8.2 | ||
| Homogeneous SSA | 3.5 |
380 |
3.8 |
8.4 | ||
| Internal FFA |
 |
57000 |
1100 |
7.9 | ||
Notes. The model and fitting routine are specified in Sect. 3. The parameters are: the spectral index α of the synchrotron spectrum, the amplitude a of the initial synchrotron spectrum, the peak frequency νp in the observed frame, the power law index of the electron energy distribution β, the break frequency νb, and the Bayesian Information Criterion for each model fit.
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