Table 3
Proper-motion measurements for the seven bow-shock-producing stars (stars 1–7) and one candidate bow-shock-producing star (star 8) around NGC 6357.
| Star | μαcosδ | μδ | Ref. | vl | vb | Parent cluster | ||
| mas yr-1 | mas yr-1 | km s-1 | km s-1 | |||||
|
|
||||||||
| 1 | −1.5 ± 1.9 | −1.6 ± 2.0 | 1 | −4.4 ± 16.1 | 9.9 ± 15.3 | AH03 J1725 − 34.4 | ||
| 1 | −3.8 ± 3.0 | −5.0 ± 3.0 | 2 | −7.1 ± 24.2 | 10.0 ± 24.2 | |||
| 2 | −8.5 ± 4.7 | −3.2 ± 4.7 | 3 | −46.8 ± 37.9 | 48.5 ± 37.9 | Pismis 24 | ||
| 2 | −8.9 ± 12.2 | −11.3 ± 12.2 | 2 | −102.4 ± 98.3 | 14.1 ± 98.3 | |||
| 3 (HD 319881) | 0.0 ± 1.4 | −2.8 ± 1.0 | 1 | −5.7 ± 8.9 | −5.3 ± 10.5 | Pismis 24 | ||
| 3 (HD 319881) | 3.4 ± 2.6 | −3.2 ± 2.7 | 2 | 6.8 ± 21.8 | −29.9 ± 21.0 | |||
| 4 | −4.4 ± 2.0 | 0.9 ± 1.1 | 1 | −1.0 ± 11.8 | 39.7 ± 10.4 | Pismis 24/AH03 J1725 − 34.4 | ||
| 4 | −9.0 ± 2.9 | 2.3 ± 3.0 | 2 | −13.2 ± 23.9 | 76.5 ± 23.6 | |||
| 5 ([N78] 34) | −4.9 ± 4.8 | 11.7 ± 4.8 | 3 | 69.0 ± 38.7 | 93.1 ± 38.7 | AH03 J1725 − 34.4 | ||
| 5 ( [N78] 34) | −11.8 ± 12.2 | 18.7 ± 12.2 | 2 | 83.9 ± 98.3 | 170.9 ± 98.3 | |||
| 6 | −4.6 ± 3.8 | 0.8 ± 2.1 | 1 | −2.5 ± 22.3 | 41.0 ± 27.0 | AH03 J1725 − 34.4 | ||
| 6 | −8.1 ± 12.2 | 0.1 ± 12.2 | 2 | −23.1 ± 98.3 | 61.1 ± 98.3 | |||
| 7 | −3.9 ± 2.1 | 0.0 ± 1.9 | 1 | −4.7 ± 15.8 | 33.1 ± 16.4 | Pismis 24 | ||
| 7 | −7.3 ± 3.0 | −3.2 ± 3.0 | 2 | −41.5 ± 24.2 | 41.5 ± 24.2 | |||
|
|
||||||||
| 8 | −6.0 ± 1.8 | 1.9 ± 2.6 | 1 | −1.4 ± 19.1 | 55.5 ± 16.8 | Pismis 24 | ||
| 8 | −9.4 ± 3.0 | −2.5 ± 3.0 | 2 | −46.2 ± 24.2 | 58.1 ± 24.2 | |||
Notes. Two measurements are given for each star to indicate the uncertainties in the measurements. For each data set, the peculiar (transverse) velocities (in Galactic coordinates) were calculated and added to the table. A likely parent cluster for each star is indicated in the last column.
References. (1) UCAC3 (Zacharias et al. 2010); (2) PPMXL (Röser et al. 2010); (3) NOMAD (Zacharias et al. 2004).
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