Table 8
NGC 6528: Details of the 7 new variables found in the cluster.
| Var | RA (J2000.0) | Dec (J2000.0) | Epoch (d) | P (d) | ⟨ I ⟩ | Ai′ + z′ | Blend | Classification |
|
|
||||||||
| V1 | 18:04:49.380 | –30:03:27.25 | 6477.8478 | 0.25591 | 15.61 | 0.19 | i | RR1 |
| V2 | 18:04:49.368 | –30:03:19.53 | 6541.5615 | 0.8165 | 16.18 | 0.14 | iii | RR0? |
| V3 | 18:04:49.518 | –30:03:26.74 | – | – | 12.46 | 0.25 | iii | L |
| V4 | 18:04:49.614 | –30:03:38.25 | – | – | 12.40 | 0.21 | iii | L |
| V5 | 18:04:50.016 | –30:03:20.90 | – | – | 12.70 | 0.10 | iii | L |
| V6 | 18:04:49.099 | –30:03:17.64 | – | – | 12.66 | 0.06 | iii | L |
| V7 | 18:04:49.360 | –30:03:28.52 | – | – | 19.6 | – | – | E? |
Notes. The celestial coordinates correspond to the epoch of the reference image, which is the HJD ~ 2456510.63 d. Epochs are (HJD – 2 450 000). ⟨ I ⟩ denotes mean I magnitude and Ai′ + z′ are the amplitudes found in our special i′ + z′ filter. The blend column describes whether the star is blended with (i) brighter star(s); (ii) star(s) of similar magnitude; or (iii) fainter/no star(s).
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