2014/08/21 by J.-M. Hameury, J.-P. Lasota · 2 citations
Physics and Astronomy · #Astrophysics and Star Formation Studies #Astrophysical Phenomena and Observations #Astronomy and Astrophysical Research
paper · pdf · doi:10.1051/0004-6361/201424535
Context. Recent observations of two unusual Z Cam systems, V513 Cas and IW And have shown light curves that seem to contradict the disc-instability model for dwarf novae: outbursts are appearing during standstills of the system when according to the model, the disc is supposed to be in a hot quasi-equilibrium state.