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Electromagnetic Signatures of Kinetic Alfvén Wave Turbulence at Ion Inertial Scales in Earth's High- Magnetosheath
Mani K Chettri, Rupak Mukherjee, Hemam D. Singh
We present a multi-diagnostic electromagnetic analysis of a dayside magnetosheath interval observed by the Magnetospheric Multiscale (MMS) mission on 2015 December 28 at high ion b…
Ion Channel Dynamics in Temperature-Dependent Weibel Instability Saturation
Vivek Shrivastav, Mani K Chettri, Hemam D. Singh +2
We present 1X2V continuum Vlasov-Maxwell simulations of interpenetrating plasma beams with mobile ions. While the early-time evolution is similar to the stationary-ion case, the la…
Linear-wave bound on electromagnetic energy equipartition at sub-electron scales in non-relativistic plasmas
Vivek Shrivastav, Mani K Chettri, Britan Singh +2
Recent Magnetospheric Multiscale (MMS) observations report approximate equality between electric and magnetic field energy spectral densities, $\varepsilon_{0} P[δE]/2 \approx P[δB…
Inertial-Range Suppression and Ponderomotive Density Cavitation in Broadband Sub-Alfvénic Turbulence under Plasma Sheet Boundary Layer Conditions
Mani K Chettri, Vivek Shrivastav, Britan Singh +2
Kinetic Alfvén waves (KAWs) are among the most pervasive electromagnetic fluctuations in magnetized astrophysical plasmas, from Earth's magnetosphere to galaxy clusters. Their pond…
Weibel Instability in Collisionless Plasmas Across Astrophysical and Laboratory Shocks
Vivek Shrivastav, Mani K Chettri, Hemam D Singh +2
We present a cold-fluid analysis of the purely transverse Weibel (current-filamentation) instability across four regimes: non-relativistic (NR) single-species, NR multi-species, re…
MMS Observations of Kinetic Alfvén Wave Turbulence and Steep Kinetic-Range Spectra in the Outer Plasma Sheet Boundary Layer
Mani K Chettri, Rupak Mukherjee, Hemam D. Singh
Energy dissipation and particle acceleration in the collisionless magnetotail plasma remain incompletely understood. We report observations of Kinetic Alfvén Wave (KAW) turbulence…
Damped Kinetic Alfvén Waves in Earth's Magnetosheath: Numerical Simulations and MMS Observations
Mani K. Chettri, Hemam D. Singh, Vivek Shrivastav +2
The Earth's magnetosheath provides a high (ratio of electron thermal pressure to magnetic pressure) plasma environment where kinetic Alfvén waves (KAWs) strongly influence turb…
Suppression of two stream instability in relativistic electron-ion plasmas
Vivek Shrivastav, Mani K Chettri, Hemam D Singh +1
This paper investigates the suppression of two stream instabilities in electron ion plasmas when the individual species attain relativistic velocities. This suppression of the grow…