20 citations · 86 across the 16 of their papers we have counts for
16 papers
Magnetic Effect on the Potential Barrier for Nucleosynthesis
Kiwan Park
We demonstrated that a weak magnetic field can increase the permittivity, leading to a reduction in the potential barrier within the Debye sphere consisting of electrons and a nucl…
Effects of electromagnetic fluctuations in plasmas on solar neutrino fluxes
Eunseok Hwang, Dukjae Jang, Kiwan Park +7
We explore the effects of electromagnetic (EM) fluctuations in plasmas on solar neutrino fluxes exploiting the fluctuation-dissipation theorem. We find that the EM spectrum in the…
Dynamical Screening Effects on Big Bang Nucleosynthesis
Eunseok Hwang, Dukjae Jang, Kiwan Park +6
A moving ion in plasma creates a deformed electric potential depending on the ion velocity, which leads to the distinct screening effect compared to the standard static Salpeter fo…
Negative Turbulent Magnetic Diffusivity effect in a Magnetically Forced System
Kiwan Park, Myung-Ki Cheoun
We have studied the large scale dynamo process forced with helical magnetic energy. The magnetically driven dynamo is not so well studied as kinetically forced dynamo. It has been…
Negative Magnetic Diffusivity beta replacing alpha effect in Helical Dynamo
Kiwan Park
The alpha effect is known to be an indispensable energy source of the poloidal magnetic field in the sun or planet. However, the alpha effect is quenched as the magnetic field grow…
Principle of Helical \& Nonhelical Dynamo and effect in Field Structure model
Kiwan Park
We explain the (non)helical dynamo process using a field-structure model based on magnetic induction equation in an intuitive way. We show how nonhelical kinetic energy converts in…
On the Inverse Transfer of (Non-)Helical Magnetic Energy in a Decaying Magnetohydrodynamic Turbulence
Kiwan Park
In our conventional understanding, large-scale magnetic fields are thought to originate from an inverse cascade in the presence of magnetic helicity, differential rotation, or a ma…
Dynamo model for the inverse transfer of magnetic energy in a nonhelical decaying magnetohydrodynamic turbulence
Kiwan Park
The inverse cascade of magnetic energy occurs when helicity or rotational instability exists in the magnetohydrodynamic (MHD) system. This well known phenomenon has been considered…
Evolution of Kinetic and Magnetic Energy in Intra Cluster Media
Kiwan Park, Dongho Park
Intra Cluster Media (ICMs) located at galaxy clusters is in the state of hot, tenuous, magnetized, and highly ionized X-ray emitting plasmas. This overall collisionless, viscous, a…
Influence of small scale and on the growth of large scale magnetic field
Kiwan Park
We investigated the influence of small scale magnetic energy () and magnetic helicity () on the growth rate () of large scale magnetic field (). $H_M…
Influence of small scale magnetic energy and helicity on the growth of large scale magnetic field
Kiwan Park
The influence of initially given small scale magnetic energy() and helicity() on the magnetohydrodynamics(MHD) dynamo was investigated. Equations for (t), $H_M…
A study of large scale dynamo growth rates from numerical simulations and implications for mean field theories
Kiwan Park, Eric G. Blackman, Kandaswamy Subramanian
Understanding large scale magnetic field growth in turbulent plasmas in the magnetohydrodynamic limit is a goal of magnetic dynamo theory. In particular, assessing how well large s…
Influence of initial conditions on the large-scale dynamo growth rate
Kiwan Park
To investigate the effect of energy and helicity on the growth of magnetic field, helical kinetic forcing was applied to the magnetohydrodynamic(MHD) system that had a specific dis…
Simulations of a Magnetic Fluctuation Driven Large Scale Dynamo and Comparison with a Two-scale Model
Kiwan Park, E. G. Blackman
Models of large scale (magnetohydrodynamic) dynamos (LSD) which couple large scale field growth to total magnetic helicity evolution best predict the saturation of LSDs seen in sim…
Comparison Between Turbulent Helical Dynamo Simulations and a Nonlinear Three-Scale Theory
Kiwan Park, E. G. Blackman
Progress toward understanding principles of nonlinear growth and saturation of large scale magnetic fields has emerged from comparison of theoretical models that incorporate the ev…
Effect of Plasma Composition on the Interpretation of Faraday Rotation
Kiwan Park, E. G. Blackman
Faraday rotation (FR) is widely used to infer the orientation and strength of magnetic fields in astrophysical plasmas. Although the absence of electron-positron pairs is a plausib…