Conveners
Poster Session 6.3
- Mats Carlsson (Rosseland Centre for Solar Physics, University of Oslo, Norway)
In a recent work, Del Zanna et al. (2020, ApJ 898 72) have presented and discussed a new set of collisional-radiative models (CRMs) for helium in the quiescent solar corona, the largest of which includes fully LS-resolved set of states up to n=40 and n-resolved states up to n=300. Using those models, the corresponding emissivities for some important He I and He II lines relevant for DKIST,...
Accurate understanding of the solar coronal temperature demands the study of Quiet Sun (QS) regions. In this work, we study quiet Sun data from 171 Å, 193 Å and 211 Å passbands of the Atmospheric Imaging Assembly (AIA) on board the Solar
Dynamics Observatory (SDO). We develop an uncertainty quantified machine learning inversion model to the empirical, statistical impulsive heating forward...
With the MPI-AMRVAC code, we present a 2.5-dimensional magnetohydrodynamic (MHD) simulation, which includes thermal convection and radiative cooling, to investigate the initial formation and long-term sustainment of coronal rain phenomenon. We perform the simulation in the initially linear force-free arcades which host a chromospheric, transition region, and coronal plasma, with turbulent...
Solar prominences, the dense and cool materials embedded in the hot and tenuous corona, are intriguing structures in the solar atmosphere. To investigate the formation mechanisms of solar prominences, we reproduce two potential models, i.e., the levitation model and the reconnection and condensation model, by 2.5-dimensional magnetohydrodynamic (MHD) simulations in a...
Recent observations by the Extreme Ultraviolet Imager (EUI) on board Solar Orbiter have revealed prevalent small-scale transient brightenings in the quiet solar corona termed "campfires". To understand the generation mechanism of these coronal brightenings, we constructed a self-consistent and time-dependent quiet-Sun model extending from the upper convection zone to the lower corona using a...
We study the various regions of the Sun, using high-resolution spectral observations from the Interface Region Imaging Spectrograph (IRIS). We observe the Quiet-Sun observation targeting the same region using different exposure times at different times and study the variation in the different parameters such as electron densities and filling factors using O IV line probing the transition...
Metis is the coronagraph on-board Solar Orbiter, an ESA/NASA solar mission, launched in February 2020. At present, Solar Orbiter has completed the commissioning phase and it is in its cruise phase.
Metis is an externally occulted imaging coronagraph that provides imaging of the extended corona in ultraviolet and visible light. During these first phases, extensive observational campaigns have...
