Table 1
Parameters of shells for which the LOSVD intensity maxima are shown in Fig. 2.
| t | n | r s | rTP | vs | v(r∗,max) | vTP | vc |
| Myr | kpc | kpc | km s-1 | km s-1 | km s-1 | km s-1 | |
|
|
|||||||
| 215 | 1 | 15 | 14.5 | 63.5 | 57.5 | 61.2 | 245 |
| 416 | 1 | 30 | 28.3 | 90.3 | 82.6 | 81.0 | 261 |
| 634 | 1 | 60 | 53.9 | 165.8 | 151.5 | 151.8 | 362 |
| 1006 | 1 | 120 | 113.9 | 142.4 | 133.3 | 141.8 | 450 |
| 1722 | 2 | 120 | 117.9 | 84.7 | 79.4 | 84.7 | 450 |
| 2428 | 3 | 120 | 118.9 | 60.3 | 54.6 | 60.3 | 450 |
| 3130 | 4 | 120 | 119.3 | 46.8 | 42.6 | 47.0 | 450 |
Notes. t: time since the release of stars at the center of the host galaxy, in which the shell has reached its current radius calculated in the framework of the model of radial oscillations (Sect. 2); n: serial number of shell (Sect. 2.1); rs: shell radius; vs: shell phase velocity according to the method described in Sect. 2.2; rTP: galactocentric radius of current turning points of the stars at this time given by Eq. (1); v(r∗,max): radial velocity of stars at the shell edge; vTP: phase velocity of current turning point according Eq. (3); vc: circular velocity at the shell edge radius. For parameters of the host galaxy, see Sect. 6.1. The shell that is used in Figs. 4–8 is highlighted in bold.
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