... cluster M 4

Based on observations with the Danish 1.54 m on La Silla at the European Southern Observatory in Chile, the 1.5 m at Cerro Tololo Inter-American Observatory in Chile, and the SSO 40'' at Siding Spring Observatory in Australia.

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...Q

Q is the mode lifetime divided by the oscillation period, as used by Stello et al. (2006c) and presented for a set of stars in their Fig. 4.

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