Table 5.
Summary of the comparison between different models for the flaring epoch MJD 54761.
| Reference | Agudo et al. (2011)(b) | Ackermann (2012)(c) | Baring et al. (2017)(d) | |
|---|---|---|---|---|
| Model components (a) | Synch + SSC (dom.) | Synch + EC (DT) (dom.) + SSC + BC | Synch + EC (BC) (dom.) + SSC | |
| Bulk Lorentz factor | Γ | 39.4 | 20 (Γb = 10) | 35 |
| Viewing angle | Θ | ≦2.4° | 2.3° | 1.7° |
| Doppler factor | δ | 24 | 20 (δb = 16) | – |
| Opening angle | θ | 2.3° | 2.9° (θb = 2.3°) | – |
| Location | r | 12 pc | 1.7 pc | – |
| Size of the emission region | R | – | – | 1 × 1016 cm |
| Magnetic field intensity | B | – | 0.22 G | 2.5 G |
| Electrons | γmin | – | 100 | – |
| γmax | 5.8 × 103 | 1.61 × 103 | ||
| ne−(E) | – | doubly broken pwl. | See footnote (e) | |
| p1 = 1.5, p2 = 2.03, p3 = 3.9 | ||||
| Protons | ne−/np+ | – | 9 | – |
| Disk luminosity | Ldisk | – | 4 × 1045 erg s−1 | 3.4 × 1044 erg s−1 |
| Disk temperature | Tdisk | – | 3.5 × 103 K (f) | 1 × 103 K |
| Disk radius | Rdisk | – | – | 6 × 1017 cm |
Notes.
The components considered are synchrotron (Synch), synchrotron self-Compton (SSC), external Compton (EC) from the dusty torus (DT), and bulk-Compton (BC).
The values for Agudo et al. (2011) do not come from a SED model, but from the DCF analysis and kinematic parameters from VLBI images, assuming a SSC scenario. The value for Γ is not cited in the paper, it is the one obtained by Weaver et al. (2022) for the same component in VLBI.
Parameters for the blazar zone (their model includes a second population of relatvistic cold electrons to account for the secondary soft X-ray bump, whose parameters are indicated between parenthesis.
The secondary soft x-ray bump is modeled by bulk Comptonization of a background seed field from a dusty torus); the H.E. bump by the external Compton of the electron population.
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