Search Publications

Nonlinear model to study filamentation instability of circularly polarized dispersive Alfvén waves in solar wind plasmas

Sharma, R. P.; Sharma, Swati; Mishra, M. K.

This paper examines the small-scale solar wind turbulence driven in view of the Alfvén waves subjected to ponderomotive nonlinearity. Filamentation instability is known to take place for the case of dispersive Alfvén wave (DAW) propagating parallel to the ambient magnetic field. The ponderomotive force associated with DAW is responsible for wave l…

A two-fluid modeling of kinetic Alfvén wave turbulence

Moon, Y. -J.; Sharma, R. P.; Dwivedi, Navin Kumar +1 more

We present an analytical model to explore the magnetic field turbulent spectrum by coupled high-frequency kinetic Alfvén wave (KAW) and slow mode of Alfvén wave (AW). The spectrum is computed as a realization of energy cascades from larger to smaller scales for a specific case of solar wind plasma at 1 AU. A two-fluid technique is implemented for …