A search for period changes of eight short-period Type II Cepheids

Alemiye M. Yacob, Leonid N. Berdnikov, Elena N. Pastukhova +2

In this study, we investigate the period changes of eight short-period Type II Cepheids of the BL Her subtype, i.e., with periods in the 1-4 day range. The $O-C$ diagrams for these…