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Table 1

Basic information on the target objects.

Cluster Star α 2000 δ 2000 p m * L X ** V B − V Ref.
[h:m:s] [°:′:″] [1030 erg s-1] [mag] [mag]

ω Cen V214 13:27:21.82 −47:37:19.0   97  <13 16.55 0.25 1, 2
ω Cen V240 13:27:28.68 −47:26:19.5   99  <1.2 16.31 0.30 1, 2
ω Cen V251 13:27:28.02 −47:26:43.7   97  <1.2 16.17 0.25 1
ω Cen V254 13:27:28.61 −47:27:39.0   99  <1.2 16.41 0.25 1, 2
ω Cen NV334 13:27:23.39 −47:29:11.9   88  <1.2 18.63 0.35 1
ω Cen NV360 13:26:02.06 −47:32:23.6 100  <1.2 17.09 0.25 1
ω Cen NV400 13:26:10.09 −47:31:50.3   99  <1.2 16.56 0.20 1
NGC 6397 V17 17:40:43.78 −53:41:16.2 100 0.4 16.17 0.40 3, 4
NGC 6397 V20 17:40:41.66 −53:40:33.1 100 1.6 15.75 0.40 3, 4
NGC 6397 V27 17:41:13.80 −53:41:14.1 18.19 0.45 3, 4
NGC 6397 V36 17:40:44.10 −53:42:11.3 0.4 16.48 0.60 3, 4

Notes.

(*)

Membership probability: Bellini et al. (2009) for V214-NV400; Strickler et al. (2009) and Anderson (2010, priv. comm.) for V17-V20; no data available for V27 and V36.

(**)

X-ray luminosity: Gendre et al. (2003) for V214; Haggard et al. (2004) for V240-NV400; Bogdanov et al. (2010) for V17-V20 and V36; no data available for V27.

(†)

Photometry: 1 – Kaluzny et al. (2004); 2 – Weldrake et al. (2007); 3 – Kaluzny et al. (2006); 4 – our unpublished data collected in 2009.

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