Conveners
Poster Session 10.5
- Alessandro Bemporad (Istituto Nazionale di Astrofisica (INAF))
We investigate the initiation and early evolution of 12 solar eruptions and conclude: (1) The early evolution of all events consists of a slow-rise phase followed by a main-acceleration phase, the height-time profiles of which differ markedly and can be best fit, respectively, by a linear and an exponential function. This indicates that different physical processes dominate in these phases,...
Geomagnetic storms are the temporary variations of the Earth’s magnetic field, induced by the coronal mass ejection (CME) or the high-speed solar wind stream (HSSWS) with a magnetic field directed oppositely to Earth's. The powerful energy injection into the magnetosphere through the magnetic reconnection during such events directly affects the auroral region of the Earth’s ionosphere, where...
We describe turbulent magnetic structure formation via driven magnetic reconnection in the non-linear phase of a Rayleigh-Taylor Instability (RTI) in a solar prominence supported by sheared magnetic field. Solar prominences are formed by partially ionized plasma with inter-particle collision frequencies generally warranting magnetohydrodynamic treatment. In this work, we explore the...
A key process which leads to eruptive activity in the Sun, is the emergence of the magnetic flux from the solar interior to the solar surface and into the outer solar atmosphere. We present results from 3D numerical simulations, which show the onset of eruptive jets and CME-like structures in emerging flux regions. We discuss the physical connection between jets and large-scale eruptions and...
