8 citations · 8 across the 5 of their papers we have counts for
5 papers
Effects of Dynamo-Generated Large-Scale Magnetic Fields on the Surface Gravity () Mode
Rajesh Mondal, Nishant K. Singh
By modelling the upper layers of the Sun in terms of a two-layer setup where a free-surface exists within the computational domain, we numerically study the interaction between the…
Reversals of toroidal magnetic field in local shearing box simulations of accretion disc with a hot corona
Nishant K. Singh, Arunima Ajay, S R Rajesh
Presence of a hot corona above the accretion disc can have important consequences for the evolution of magnetic fields and the Shakura-Sunyaev (SS) viscosity parameter in such…
Strengthening of the f mode due to subsurface magnetic fields in simulations of convection
G. Kishore, Nishant K Singh, Petri Käpylä +1
Previous studies have found that localized strengthening of the f mode recedes the emergence of active regions on the Sun by one day to three days. To help interpret these observat…
On Strengthening of the Solar f-mode Prior to Active Region Emergence Using the Fourier-Hankel Analysis
Matthias Waidele, Markus Roth, Nishant Singh +1
Recent results of Singh et al. (2016) show that the emergence of an active region (AR) can be seen in a strengthening of the f-mode power up to two days prior of the region's forma…
Time variability of viscosity parameter in differentially rotating discs
S. R. Rajesh, Nishant K. Singh
We propose a mechanism to produce fluctuations in the viscosity parameter () in differetially rotating discs. We carried out a nonlinear analysis of a general accretion flow, wh…