4 papers
Real-time observations of the transition to the quiescent state in an accreting magnetised neutron star: No propeller required?
Sergey S. Tsygankov, Galina Lipunova, Valery F. Suleimanov +6
The final stages of outbursts in transient X-ray pulsars (XRPs), which are characterised by a significant decline in the mass accretion rate, provide valuable insight into the phys…
Disc accretion onto a binary black hole in a hierarchical triple system as an origin of the most luminous hyper-soft sources
Sergei B. Popov, Galina V. Lipunova
We propose that the recently discovered luminous hypersoft X-ray sources can be explained by accretion onto a binary black hole in a hierarchical triple system. For black hole mass…
Non-Stationary Discs and Instabilities
Omer Blaes, Yan-Fei Jiang, Jean-Pierre Lasota +1
We review our current knowledge of thermal and viscous instabilities in accretion discs around compact objects. We begin with classical disc models based on analytic viscosity pres…
Fast giant flares in discs around supermassive black holes
G. V. Lipunova, A. S. Tavleev, K. L. Malanchev
We studied the thermal stability of non-self-gravitating turbulent -discs around supermassive black holes (SMBHs) to test a new type of high-amplitude galactic nucleus flares.…