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Table 5.

Properties of the variable candidates in NGC 6626 (M 28).

ID IDClement IDOGLE α (J2000) δ (J2000) Distance (a) Period AKs Ks Z − Ks Y − Ks J − Ks H − Ks μα* μδ Member (b) Type
(OGLE-BLG-) (h:m:s) (d:m:s) (arcmin) (days) (mag) (mag) (mag) (mag) (mag) (mag) (mas yr−1) (mas yr−1)
C1 V20 RRLYR-59819 18:24:33.11 −24:51:43.0 0.48 0.497742 0.262 13.459 0.689 0.525 0.407 −0.002 −4.975 −7.654 Yes RRab
C2 V22 RRLYR-59799 18:24:30.98 −24:52:01.9 0.49 0.322637 0.107 13.637 0.738 0.448 0.366 0.088 1.108 −12.76 Yes RRc
C3 V23 RRLYR-59795 18:24:30.25 −24:52:03.1 0.64 0.292314 0.09 13.774 0.766 0.528 0.367 0.12 3.496 −8.488 Yes RRc
C4 V11 RRLYR-59804 18:24:31.48 −24:51:33.1 0.73 0.54276 0.329 13.41 0.889 0.61 0.426 0.118 −1.411 −9.161 Yes RRab
C5 V18 RRLYR-59844 18:24:36.54 −24:51:50.1 0.88 0.640177 0.293 13.252 1.068 0.787 0.504 0.119 4.428 −7.115 Yes RRab
C6 V25 RRLYR-59787 18:24:28.82 −24:52:09.1 0.95 0.74772 0.206 13.105 1.0 0.731 0.579 0.099 1.732 −7.355 Yes RRab
C7 V29 RRLYR-59780 18:24:27.66 −24:52:15.1 1.21 0.311162 0.085 13.6 0.882 0.611 0.444 0.103 −0.551 −8.168 Yes RRc
C8 V13 RRLYR-59773 18:24:25.77 −24:52:33.7 1.68 0.654924 0.294 13.247 1.067 0.782 0.504 0.131 −1.095 −8.659 Yes RRab
C9 18:24:24.61 −24:53:01.8 2.08 0.172628 0.479 14.657 1.192 0.862 0.622 0.147 1.698 −5.384 No ?
C10 V12 RRLYR-59878 18:24:43.31 −24:52:56.3 2.45 0.578212 0.333 13.367 0.943 0.676 0.51 0.121 0.262 −8.341 Yes RRab

Notes. This table is available in its entirety at the CDS. A portion is shown here for guidance regarding its form and content.

(a)

Projected distance to the cluster center.

(b)

Cluster membership according to criteria explained in Sect. 5.3.

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