4 papers
BV photometry of the ultracompact binary star GP Com
R. Zamanov, L. Dankova, M. Minev +2
We present optical B and V band photometry of GP Com - an ultracompact binary consisting of an accreting white dwarf and helium secondary component. Our data set contains 7.7 hours…
Periods of outbursts and standstills and parameters variations in two Z Cam stars: Z Cam and AT Cnc
Daniela Boneva, Krasimira Yankova, Denislav Rusev
We present our results on two Z Cam stars: Z Cam and AT Cnc. We apply observational data for the periods that cover the states of outbursts and standstills, which are typical for t…
Post-superhumps maximum on intranight time scales of the AM CVn star CR Boo
Daniela Boneva, Georgi Latev, Svetlana Boeva +2
We present observations of the intranight brightness variability of CR Boo, a member of the AM CVn stars group. The observational data are obtained with the 2m telescope of the Roz…
Structuring the hot advective accretion flow, as a result interaction of plasma with magnetic field
Krasimira Yankova, Lachezar Filipov
We present a magneto-hydrodynamic model developed for investigations of advective non-stationary, asymmetric Keplerian accretion disks in the normal magnetic field. The introduced…