66 citations · 166 across the 7 of their papers we have counts for
8 papers
Jets with Streaks: the Global Dynamics and Structure of Striped Poynting flux dominated Jets
Ho-Sang Chan, Anna Chashkina, Omer Bromberg +2
Striped jets, characterized by magnetically dominated regions with alternating polarity, can enable fast magnetic energy dissipation in global current sheets formed in between the…
Constraints on the accretion properties of quasi-periodic erupters from GRMHD simulations
Anna Chashkina, Omer Bromberg, Amir Levinson +1
Context: Some apparently quiescent supermassive black holes (BHs) at centers of galaxies show quasi-periodic eruptions (QPEs) in the X-ray band, the nature of which is still unknow…
GRMHD simulations of BH activation by small scale magnetic loops: Formation of striped jets and active coronae
Anna Chashkina, Omer Bromberg, Amir Levinson
We have performed a series of numerical experiments aimed at studying the activation of Kerr black holes (BHs) by advection of small scale magnetic fields. Such configurations may…
Super-Eddington accretion discs with advection and outflows around magnetized neutron stars
Anna Chashkina, Galina Lipunova, Pavel Abolmasov +1
We present a model for a super-Eddington accretion disc around a magnetized neutron star taking into account advection of heat and the mass loss by the wind. The model is semi-anal…
Super-Eddington accretion onto a magnetized neutron star
Anna Chashkina, Pavel Abolmasov, Juri Poutanen
Most of ultraluminous X-ray sources are thought to be objects accreting above their Eddington limits. In the recently identified class of ultraluminous X-ray pulsars, accretor is a…
On the Eddington limit for relativistic accretion discs
Pavel Abolmasov, Anna Chashkina
Standard accretion disc model relies upon several assumptions, the most important of which is geometrical thinness. Whenever this condition is violated, new physical effects become…
Black Hole Spin Evolution Affected by Magnetic Field Decay
Anna Chashkina, Pavel Abolmasov
Black holes are spun up by accreting matter and possibly spun-down by magnetic fields. In our work we consider the effect on black hole rotation of the two electromagnetic processe…
Magnetic field estimates for accreting neutron stars in massive binary systems and models of magnetic field decay
A. Chashkina, S. B. Popov
Some modern models of neutron star evolution predict that initially large magnetic fields rapidly decay down to some saturation value G and weaker mag…