V803 Centauri: Helium Dwarf Nova Mimicking a WZ Sge-Type Superoutburst
V803 Centauri: Helium Dwarf Nova Mimicking a WZ Sge-Type Superoutburst
Abstract We observed the long-term behavior of the helium dwarf nova V803 Cen, and clarified the existence of at least two distinct states (a state with 77-d supercycles and a standstill-like state) that interchangeably appeared with a time-scale of 1–2 yr. We also conducted a time-resolved CCD photometry campaign during …