All Tables

Table 1: Photometric information available on the target.
Table 2: Date, UT of the first exposure of each run, its corresponding length, telescope and observers for all the photometric campaigns: discovery, confirmation, IAC80 and NOT2005.
Table 3: Frequency, period, amplitude, phase and signal-to-noise ratio of the pulsations detected in the amplitude spectrum of PG 1657+416 in the different runs. Phase is relative to the first data point of each light curve. The S/N values are after prewhitening.
Table 4: Total mass (M), hydrogen envelope mass ( $M_{\rm H}$ ), $T_{\rm eff}$ and $\log g$ of the structural models at the beginning of the sdB time evolution of sequences A, B, C and D.