![]() |
Figure 1: Histograms of the three sigma standard deviations of all mean photometric values for the programme clusters; arrows indicate the bona-fide variable stars detected. |
| Open with DEXTER | |
![]() |
Figure 2: The Hertzsprung-Russell diagram of the variable objects with the parameters listed in Table 2. The zero age main sequence is taken from Schmidt-Kaler (1982). The areas of different variable groups are indicated. |
| Open with DEXTER | |