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Table 2

Cluster properties and target numbers.

NGC 2516 NGC 2547 NGC 2264

Age (Myr) 141 35 5.5
(mM)0 7.93 7.79 9.45
E(BV) (mag) 0.12 0.12 0.075
AK (mag) 0.04 0.04 0.02
No. of targets observed 743 450 1707
No. potential membersa 618 376 1525
No. membersb 459 156 350 (604)
Targets with Known period 77 84 226
Members with R sin ic 32 45 90 (157)

Notes.

(a)

With S/N> 5, valid I-mag, K-mag and log g> 3.5 (if known);

(b)

based on the probability of membership from the RV being >0.8;

(c)

member with known period, v sin i> 5 km s-1 and Δv sin i< 0.2; Nos. in brackets are for relaxed membership criteria, see Sect. 2.4.

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