Cyclic period oscillation of the eclipsing dwarf nova DV UMa

Z. -T. Han, S. -B. Qian, Irina Voloshina +1

DV UMa is an eclipsing dwarf nova with an orbital period of $\sim 2.06$ h, which lies just at the bottom edge of the period gap. To detect its orbital period changes we present 12 n…