32 citations · 63 across the 5 of their papers we have counts for
5 papers
Mean-field dynamo due to spatiotemporal fluctuations of the turbulent kinetic energy
Kishore Gopalakrishnan, Nishant Singh
In systems where the standard effect is inoperative, one often explains the existence of mean magnetic fields by invoking the `incoherent effect', which appeals to fluctuat…
Understanding spectral states of sub-Keplerian accretion discs around compact objects as transitions between steady states
Arunima Ajay, S R Rajesh, Nishant K. Singh
We present here a simple hydrodynamic model based on a sequence of steady states of the inner sub-Keplerian accretion disc to model its spectral states. Correlations between differ…
The small-scale dynamo in a multiphase supernova-driven medium
Frederick A. Gent, Mordecai-Mark Mac Low, Maarit J. Korpi-Lagg +1
Magnetic fields grow quickly, even at early cosmological times, suggesting the action of a small-scale dynamo (SSD) in the interstellar medium (ISM) of galaxies. Many studies have…
Acceleration of cosmic rays in presence of magnetohydrodynamic fluctuations at small scales
Sayan Kundu, Nishant Singh, Bhargav Vaidya
This work investigates the evolution of the distribution of charged particles due to the mechanism of stochastic turbulent acceleration (STA) in presence of small-scale turbulence…
Two-scale analysis of solar magnetic helicity
Axel Brandenburg, Gordon J. D. Petrie, Nishant K. Singh
We develop a two-scale formalism to determine global magnetic helicity spectra in systems where the local magnetic helicity has opposite signs on both sides of the equator, giving…