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Table 5
Global motion of M15 and implied peculiar transverse velocities of the detected cluster members.
| μ α | μ δ | M15A | AC211 | M15C | |
| [mas yr-1] | [mas yr-1] | [km s-1] | [km s-1] | [km s-1] | |
|
|
|||||
| Cudworth & Hanson (1993) | −0.3 ± 1.0 | −4.2 ± 1.0 | 12 | 9 | 38 |
| Geffert et al. (1993) | −1.0 ± 1.4 | −10.2 ± 1.4 | 279 | 280 | 316 |
| Scholz et al. (1996) | −0.1 ± 0.4 | +0.2 ± 0.3 | 215 | 214 | 178 |
| Odenkirchen et al. (1997) | −2.5 ± 1.5 | −8.3 ± 1.5 | 209 | 212 | 241 |
| Jacoby et al. (2006) | −1.0 ± 0.4 | −3.6 ± 0.8 | 40 | 42 | 12 |
| This work case (i) | −0.58 ± 0.18 | −4.05 ± 0.34 | 13 | 13 | 26 |
| This work case (ii) | −0.75 ± 0.09 | −3.52 ± 0.13 | 39 | 39 | 0 |
| This work case (iii) | −0.50 ± 0.16 | −4.32 ± 0.32 | 1 | 1 | 39 |
Notes. Cases (i), (ii), and (iii) refer to the average of (i) all three cluster members; (ii) only M15C; (iii) only M15A and AC211 as proxy for the global cluster motion.
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