30 citations · 167 across the 12 of their papers we have counts for
13 papers
Wave-particle acceleration during supernova explosions
Zaza N. Osmanov, S. M. Mahajan
We investigate particle acceleration during the early stages of a supernova explosion via a resonant interaction between electromagnetic waves and quantum waves associated with par…
Modeling Temperature Profiles in the Pedestal of NSTX with Reduced Models
P. -Y. Li, D. R. Hatch, L. A. Leppin +5
This paper describes new modeling capabilities for predicting H-mode pedestal profiles in spherical tokamaks. Temperature profiles for NSTX discharges 132543 and 132588 are modeled…
Hall MHD waves: A fundamental departure from their MHD counterparts
Swadesh M. Mahajan, Prerana Sharma, Manasvi Lingam
It is demonstrated through a succinct derivation as to how the linear waves in Hall magnetohydrodynamics (HMHD) constitute a fundamental departure from the standard MHD waves. Apar…
Can the solar atmosphere generate very high energy cosmic rays?
Z. N. Osmanov, D. Kuridze, S. M. Mahajan
The origin and acceleration of high-energy particles in space (cosmic rays), constitute important topics in modern astrophysics. Among the The origin and acceleration of high-energ…
Radio pulsars resonantly accelerating electrons
Zaza N. Osmanov, Swadesh M. Mahajan
Based on the recently demonstrated resonant wave-wave process, it is shown that electrons can be accelerated to ultra-relativistic energies in the magnetospheres of radio pulsars.…
Nonlinear Coupling of Electromagnetic and Electron Acoustic Waves in Multi-Species Degenerate Astrophysical Plasma
N. L. Shatashvili, S. M. Mahajan, V. I. Berezhiani
Nonlinear wave--coupling is studied in a multi-species degenerate astrophysical plasma consisting of two electron species (at different temperatures): a highly degenerate main comp…
On the rotationally driven pevatron in the centre of the Milky Way
Z. Osmanov, S. Mahajan, G. Machabeli
Based on the collective linear and nonlinear processes in a magnetized plasma surrounding the black hole at the galactic center (GC), an acceleration mechanism is proposed to expla…
Mechanisms for Multi-Scale Structures in Dense Degenerate Astrophysical Plasmas
N. L. Shatashvili, S. M. Mahajan, V. I. Berezhiani
Two distinct routes lead to the creation of multi--scale equilibrium structures in dense degenerate plasmas, often met in astrophysical conditions. By analyzing an e-p-i plasma con…
Beltrami-Bernoulli Equilibria in Plasmas with Degenerate Electrons
V. I. Berezhiani, N. L. Shatashvili, S. M. Mahajan
A new class of Double Beltrami-Bernoulli equilibria, sustained by electron degeneracy pressure, are investigated. It is shown that due to electron degeneracy, a nontrivial Beltrami…
Stable Optical Vortex Solitons in Pair Plasmas
V. I. Berezhiani, S. M. Mahajan, N. L. Shatashvili
It is shown that the pair plasmas with small temperature asymmetry can support existence of localized as well as de-localized optical vortex solitons. Coexistence of such solitons…
Self-trapping of strong electromagnetic beams in relativistic plasmas
V. I. Berezhiani, S. M. Mahajan, Z. Yoshida +1
Interaction of an intense electromagnetic (EM) beam with hot relativistic plasma is investigated. It is shown that the thermal pressure brings about a fundamental change in the dyn…
Vortex solitons - Mass, Energy and Angular momentum bunching in relativistic electron-positron plasmas
T. Tatsuno, V. I. Berezhiani, S. M. Mahajan
It is shown that the interaction of large amplitude electromagnetic waves with a hot electron-positron (e-p) plasma (a principal constituent of the universe in the MeV epoch) leads…
Beat-wave generation of plasmons in semiconductor plasmas
V. I. Berezhiani, S. M. Mahajan
It is shown that in semiconductor plasmas, it is possible to generate large amplitude plasma waves by the beating of two laser beams with frequency difference close to the plasma f…