Table 2
Parameters of the shells in a simulation 2.2 Gyr after the decay of the cannibalized galaxy.
| rs | n | rTP,model | vs,sim | vs,model | vc,model |
| kpc | kpc | km s-1 | km s-1 | km s-1 | |
|
|
|||||
| 48.8 | 5 | 48.5 | 38.7 ± 2.1 | 38.7 | 326 |
| − 70.6 | 4 | −69.9 | 59.8 ± 1.6 | 54.3 | 390 |
| 105.0 | 3 | 103.9 | 68.1 ± 1.9 | 63.5 | 441 |
| − 157.8 | 2 | −155.7 | 74.3 ± 1.2 | 72.4 | 450 |
| 257.4 | 1 | 251.0 | 97.5 ± 1.4 | 95.7 | 406 |
Notes. The values of rTP,model and vs,model are calculated for the shell position rs and its corresponding serial number n according to the model of radial oscillations (Sect. 2). The shell velocity vs,sim is derived from 20 positions between the times 2.49–2.51 Gyr for each shell. The value vc,model corresponds to the circular velocity at the shell edge radius rs for the chosen potential of the host galaxy (Sect. 6.1).
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