32 citations · 57 across the 10 of their papers we have counts for
10 papers
Equatorially Asymmetric Magnetic Fields and Their Impact on Black Hole Accretion Dynamics
Ishika Palit, Indu Kalpa Dihingia, Yosuke Mizuno +1
We investigate the impact of equatorial asymmetry in the magnetic field geometry on accretion dynamics around a spinning black hole using axisymmetric general relativistic magnetoh…
Exploring the Role of Vector Potential and Plasma- in Jet Formation from Magnetized Accretion Flows
Ishika Palit, Miles Angelo Paloma Sodejana, Hsiang-Yi Karen Yang
In this work, we investigate how the choice of initial vector potential and plasma parameters influences the development of accretion columns and jet formation in magnetized accret…
Relativistic Spherical Shocks in Expanding Media
Taya Govreen-Segal, Noam Youngerman, Ishika Palit +3
We investigate the propagation of spherically symmetric shocks in relativistic homologously expanding media with density distributions following a power-law profile in their Lorent…
Variability of magnetically-dominated jets from accreting black holes
Agnieszka Janiuk, Bestin James, Ishika Palit
Structured jets are recently invoked to explain the complex emission of gamma ray bursts, such as GW 170817. Based on the accretion simulations, the jets are expected to have a str…
Clumpy wind accretion in Cygnus X-1
Ishika Palit, Agnieszka Janiuk, Bozena Czerny
Cygnus X-1 is one of the brightest X-ray sources observed and shows the X-ray intensity variations on time scales from milliseconds to months in both the soft and hard X-rays. The…
Effects of self-gravity of the accretion disk around rapidly rotating black hole in long GRBs
Ishika Palit, Agnieszka Janiuk, Petra Sukova
We prescribe a method to study the effects of self-gravity of accretion disk around a black hole associated with long Gamma Ray Bursts (GRBs) in an evolving background Kerr metric.…
Time variability of low angular momentum accretion flows around black hole
Ishika Palit, Agnieszka Janiuk, Petra Sukova
We present the relativistic 2D and 3D GRMHD simulation of axisymmetric, inviscid, hydrodynamic accretion flows in a fixed Kerr black hole gravitational field. The flow is having lo…
Mass and spin constraint on black holes in long GRBs
Ishika Palit, Agnieszka Janiuk, Petra Sukova
We compute the evolution of a quasi-spherical, slowly rotating accretion flow around a black hole, whose mass and spin evolve adequately to the mass-energy transfer through the hor…
Effects of adiabatic index on the sonic surface and time variability of low angular momentum accretion flows
Ishika Palit, Agnieszka Janiuk, Petra Sukova
We study the role of adiabatic index in determining the critical points in the transonic low angular momentum accretion flow onto a black hole. We present the general relativistic…
Accretion in a dynamical spacetime and spinning up of the black hole in the gamma ray burst central engine
Agnieszka Janiuk, Petra Sukova, Ishika Palit
We compute the evolution of a quasi-spherical, slowly rotating accretion flow around a black hole, whose mass and spin evolve adequately to the mass-energy transfer through the hor…