8 papers
Coronal Rain Driven by Low-Frequency Impulsive Heating: Dependence of Dynamics and Morphology on Coronal Heating and Magnetic Field
Takero Yoshihisa, Takaaki Yokoyama
We performed numerical simulations to investigate how coronal heating and magnetic field strength regulate the dynamics and morphology of coronal rain in the solar corona. Coronal…
Anisotropic Thermal Conduction as a Driver of Jet Collimation and Magnetic Field Amplification on Cold Fronts
Nana Matsuno, Takaaki Yokoyama, Mami Machida
Galaxy clusters contain a hot, diffuse, and weakly magnetized plasma known as the intracluster medium (ICM). In this environment, how thermal conduction influences plasma dynamics…
Formation of a Magnetic Flux Rope Prior to the Eruption: Insight from a Radiative MHD Simulation of Active Region Emergence
Can Wang, Takaaki Yokoyama, Feng Chen +3
Magnetic flux ropes (MFRs) are fundamental magnetic structures in solar eruptions, whose formation is generally attributed to (1) the emergence of subsurface flux tubes or (2) flux…
A unified picture of swirl-driven coronal heating: magnetic energy supply and dissipation
Hidetaka Kuniyoshi, Shinsuke Imada, Takaaki Yokoyama
The coronal heating problem is one of the most critical challenges in solar physics. Recent observations have revealed that small-scale swirls are ubiquitous in the photosphere and…
Comparison of plasma dynamics in Coronal Holes and Quiet Sun using flux emergence simulations
Vishal Upendran, Durgesh Tripathi, Bhargav Vaidya +2
This paper presents a comparison of plasma dynamics in Coronal Holes (CHs) and Quiet Sun (QS) through 2.5D MHD flux emergence simulations. The magnetic reconnection between the eme…
Conditions for Solar Prominence Formation Triggered by Single Localized Heating
Takero Yoshihisa, Takaaki Yokoyama, Takafumi Kaneko
We performed numerical simulations to study mechanisms of solar prominence formation triggered by a single heating event. In the widely accepted ``chromospheric-evaporation condens…