10 citations · 27 across the 8 of their papers we have counts for
9 papers
Magnetically threaded accretion disks in resistive magnetohydrodynamic simulations and asymptotic expansion
Miljenko Čemeljić, Włodek Kluźniak, Varadarajan Parthasarathy
Aims. A realistic model of magnetic linkage between a central object and its accretion disk is a prerequisite for understanding the spin history of stars and stellar remnants. To t…
A magnetized thin accretion disk: numerical simulations compared with asymptotic expansion
M. Čemeljić, W. Kluźniak, V. Parthasarathy
To obtain a simple description of a geometrically thin magnetic accretion disk, we apply the method of asymptotic expansion. For the first time we write a full set of stationary as…
Analytical solution for magnetized thin accretion disk in comparison with numerical simulations
Miljenko Čemeljić, Varadarajan Parthasarathy, Włodek Kluźniak
We obtained equations for a thin magnetic accretion disk, using the method of asymptotic approximation. They cannot be solved analytically-without solutions for a magnetic field in…
MHD simulations of resistive viscous accretion disk around millisecond pulsar
M. Čemeljić, V. Parthasarathy, W. Kluźniak
We perform MHD simulations of a thin resistive and viscous accretion disk around a neutron star with the surface dipolar magnetic field of 10 Gauss. The system evolution is fol…
MHD simulations of oscillating cusp-filling tori around neutron stars -- missing upper kHz QPO
Varadarajan Parthasarathy, Wlodek Kluzniak, Miljenko Cemeljic
We performed axisymmetric, grid-based, ideal magnetohydrodynamic (MHD) simulations of oscillating cusp-filling tori orbiting a non-rotating neutron star. A pseudo-Newtonian potenti…
Numerical simulations of oscillating tori in a pseudo-Newtonian potential
Varadarajan Parthasarathy, Antonios Manousakis, Wlodek Kluzniak
We have modeled hydrodynamical tori in the Klu{ź}niak-Lee pseudo-Newtonian potential. The tori in equilibrium were perturbed with uniform sub-sonic velocity fields: vertical, radia…
Quasi-periodic oscillations of perturbed tori
Varadarajan Parthasarathy, Antonios Manousakis, Wlodek Kluzniak
We performed axisymmetric hydrodynamical simulations of oscillating tori orbiting a non-rotating black hole. The tori in equilibrium were constructed with a constant distribution o…
Numerical simulations of thin accretion discs with PLUTO
Varadarajan Parthasarathy, Wlodek Kluzniak
Our goal is to perform global simulations of thin accretion discs around compact bodies like neutron stars with dipolar magnetic profile and black holes by exploiting the facilitie…
An Analysis On Ward Identity For Multi-Field Inflation
Varadarajan Parthasarathy
Given a correlation function (or n-point function), can the corresponding nature of space-time be determined ? To answer this question it is required to derive the Ward Identity (W…