Conveners
Poster Session 3.2
- D. Shaun Bloomfield (Northumbria University)
Active Regions (ARs) in their emergence phase are known to be more flare productive and eruptive than ARs in their decay phase. In this work, we focus on complex emerging ARs composed of multiple bipoles. Due to the compact clustering of the different emerging bipoles within such complex multipolar ARs, collision and shearing between opposite non-conjugated polarities produce “collisional...
Spectropolarimetric reconstructions of the photospheric vector magnetic field are intrinsically limited by the so-called 180$^\circ$ ambiguity in the orientation of the transverse component. The successful launch and operation of Solar Orbiter has made the removal of the 180$^\circ$-ambiguity possible using solely observations obtained from two different vantage points. While the exploitation...
The solar photosphere and the outer layer of the Sun's interior are characterized by convective motions, which display a chaotic and turbulent character. In order to further investigate those motions, we estimated the pseudo-Lyapunov exponents of the overshooting convection described by current state-of-the-art observations of the Sun’s surface. In particular, we applied a method employed in...
We studied physical properties of the magnetic field above the sunspot which was observed on September 10, 2014 near the center of the solar disk during the time period 16:20-18:20 UT by the SDO/AIA/HMI and IRIS instruments. We detected a magnetic field flux tube above a sunspot umbra where vertical magnetic field lines formed a connection between the inner layers of the solar atmosphere and...
Observations of the Sun with the Atacama Large Millimeter/sub-millimeter Array (ALMA) facilitate chromospheric studies at high spatial and temporal resolution.
We strive to evaluate observational data and determine the origin of the detected small-scale structures with the support of numerical simulations.
For this purpose, high-cadence Bifrost 3D simulations and radiative transfer...
We present a unique set of observations of a confined minifilament eruption from the quiet-Sun during solar minimum. The Nuclear Spectroscopic Telescope Array (NuSTAR) spotted a tiny, compact hard X-ray (HXR) flare on 2019 April 26, peaking about 02:06UT lasting for a few minutes, finding brief emission >5MK. Observations with SDO/AIA and Hinode/XRT show this HXR emission was due to a tiny...
