Table 3.
Summary of spectral age fitting of the different structures of the radio galaxy in RBS 797.
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) |
|---|---|---|---|---|---|---|---|---|
| Structure | Component | Model | B | νb | Γ | tage | ton | toff |
| [μG] | [GHz] | [Myr] | [Myr] | [Myr] | ||||
| Inner jets | Hotspots | Tribble | 16 (=Beq, fixed) | – | 0.9 (fixed) | 4.4 ± 0.5 | – | – |
| Trailing plasma | – | 5.8 ± 0.3 | – | – | ||||
| Outer lobes | E – W | CI-off | 3.4 (=Bmin, fixed) | 3.1 ± 0.2 | 0.54 ± 0.04 | 31.4 ± 6.6 | 11.4 ± 2.4 | 20.1 ± 4.2 |
| N – S | 3.0 ± 0.3 | 0.54 ± 0.05 | 32.1 ± 9.9 | 12.8 ± 4.0 | 19.3 ± 6.0 | |||
Notes. In the first row, we report the summary of the Tribble model fit to the inner jets of the radio galaxy (see Fig. 4 and Sect. 3.1.2). Note that the fitting has been performed in two dimensions, and the Hotspots and Trailing plasma components are average estimates derived from the 2D maps shown in Fig. 4. In the second row, we report the best fit parameters for the CI-off model fit to the radio spectrum of the E–W and N–S lobes of RBS 797 (see Fig. 5 and Sect. 3.1.3). In this second case, the fitting has been performed over the integrated spectra of the radio lobes (bottom panel of Fig. 5). (1) Structure of the radio galaxy; (2) subcomponent of the structure; (3) model used to fit the synchrotron spectra; (4) magnetic field adopted during the fitting procedure; (5) break frequency of the spectrum; (6) injection index; (7) total age of the radio emission; (8) active phase duration (CI-off model only); (9) remnant phase duration (CI-off model only).
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