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Table 4.

Properties of runaways coming from NGC 6618, sorted by increasing kinematic age tkin.

Identifier Ks Spectral type vT| vR tkin rimp, 2D AV Ref.
(–) (mag) (–) (km s−1) (km s−1) (kyr) (arcmin) (mag) (–)
SLS373 6.8 O3-6: V (a) 20.2 ± 1.5 120 0.255 ± 0.091 ∼9 1
SLS17 7.8 O7-B0: V (a) 18.8 ± 0.9 282 0.14 ± 0.10 ∼7 1
OI 672 9.8 B1-3: V (a) 18.4 ± 0.9 –29 ± 9 (b) 293 0.42 ± 0.17 ∼6 2
2MASS J18205435-1556291 10.6 B5-9: V (a) 19.9 ± 0.7 377 0.61 ± 0.18 ∼4
LS 4943 8.9 O9.7 V 10.7 ± 0.4 404 0.30 ± 0.16 ∼3 1
BD-164832 8.9 B0 V + B1 V 19.0 ± 0.7 416 0.18 ± 0.13 ∼2
LS 4941 9.5 O9.7 V 20.4 ± 0.6 436 0.33 ± 0.15 ∼3
BD-164826 7.3 O5 V((f))z + O9/B0 V 12.4 ± 0.5 11 ± 1 491 0.22 ± 0.16 ∼4 3, 4
OI 637 10.3 B2-5: V (a) 10.0 ± 0.4 –14 ± 6 (b) 545 1.75 ± 0.19 ∼3 2
2MASS J18182392-1721517 (c) 7.9 O7-B0: V (a) 65.3 ± 2.8 559 0.28 ± 0.20 ∼6
2MASS J18194850-1626446 10.6 B2-6: V (a) 13.2 ± 0.4 656 0.33 ± 0.21 ∼4
LS 4951 10.1 B1.5-4: V (a) 10.9 ± 0.4 761 1.37 ± 0.33 ∼4 1
TYC 6265-1828-1 10.5 B2-6: V (a) 9.5 ± 0.4 9 ± 27 (b) 1117 0.55 ± 0.36 ∼2

Notes.

(a)

Spectral type estimated from photometry.

(b)

Radial velocity from Gaia DR3.

(c)

Bowshock in Spitzer MIPS.

References. (1) Povich et al. (2009); (2) Ogura & Ishida (1976); (3) Maíz Apellániz et al. (2019); (4) Williams et al. (2013).

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