Schedule

The team met three times at the International Space Science Institute in Bern, Switzerland.

First team meeting: January 22nd to 26th, 2018
Second team meeting: January 21st to 25th, 2019
Third team meeting: October 29th to 31st, 2019

An extra 1-day meeting was held in St Andrews on June 10th, 2019 before the 9th Coronal Loops Workshop


Presentations from the third meeting (October 2019):

Agenda_3

    • Introduction to the meeting (Clara and Patrick)
  • Thermal instability and Thermal non-equilibrium debate
    • Thermal non-equilibrium and thermal instability in coronal loops (Patrick)
    • Thermal instability and TNE (Ramón and Adel)
    • The effects of numerical resolution and background heating on thermal non-equilibrium in coronal loops (Craig)
    • A Fast and Accurate Method to Capture the Solar Corona/Transition Region Enthalpy Exchange (Craig)
  • Diagnostics
    • Coronal magnetic fields inferred from coronal rain spectropolarimetry (Matheus)
    • On the use of the 171-131 and 171-304 for time lag maps (Clara)
    • DEM, comparison observations/models (Clara)
    • Unravelling flare-driven rain (Jeff, Patrick)
  • Statistics pulsations & rain
    • Automatic detection of coronal rain with AIA 304 (Patrick)
    • What fraction of the coronal volume is undergoing TNE? (Frédéric)
    • EMD (Clara)

     

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Presentations from the St Andrews meeting (June 2019):

programme_issi_10June2019

  • Simulations of the “coronal monsoon” event (Gabriel)
  • Damping of large-amplitude longitudinal oscillations in prominences due to the evaporation-condensation process (Manuel)
  • Electron beams cannot produce coronal rain (Jeffrey)
  • Thermal instability-induced fundamental magnetic strands in coronal loops (Patrick)
  • Coronal condensation at/near preferential topological features and its relationship with magnetic reconnection (Wei, via zoom)
  • Observations of solar coronal rain in null point topologies (Nicki)
  • Formation of coronal rain triggered by impulsive heating associated with magnetic reconnection (Clara, via zoom)
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Presentations from the second meeting (January 2019):

Agenda_2

Day 1 – Main variables affecting TNE cycles in the parameter space

  • Modelling the Transition Region Using an Adaptive Conduction Method (Craig)
  • Thermal non-Equilibrium in 1D and 3D: Quantifying Cycle Properties and Testing Predictions (Cooper)
  • Test of analytical predictions with a parameter-space study (Clara)

Day 2: Simulations and influence of the setup and modelling of the transition region – Character of the thermal instability in TNE cycles (complete vs incomplete, detection of flows)

  • Exploration of Heating of AR11339 (November 8, 2011) (Zoran)
  • Modelling the Transition Region & Thermal Non-Equilibrium in Coronal Loop Models (Craig)
  • On the detection of plasma flows associated with incomplete-condensation cycles (Gabriel)
  • Multi-scale observations of TNE (Clara)

Day 3: Coronal rain, magnetic field and heating mechanisms

  • Coronal rain dynamics from 2D numerical simulations (Ramón)
  • Magnetic field determination using the Weak Field Approximation (Matheus)
  • Magnetic Topological Preference in Coronal Condensation (from prominence/coronal rain) (Wei, via telecon)

Day 4: Loop modelling, coronal rain and solar flares

  • 3D reconstruction of the loops bundle channeling coronal rain during the “Rainbow” event (Frédéric)
  • Machine learning for tracking flows (Brandon)
  • Electron beams cannot produce coronal rain (Jeff via Patrick)

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Presentations from the first meeting (January 2018):

Agenda

 

I – Observations of evaporation-condensations in the solar atmosphere

Main topics for the presentation and discussions :
– Thermal non-equilibrium events (cycles) and coronal rain
– Study of flows associated with pulsations in loops
– Prominence connection
– Detection of EUV pulsations and coronal rain, what fraction of the coronal volume experiences these events?

  • Observations of cooling in EUV lines and cooling/heating cycles in loops – review (Clara)
  • High resolution observations of coronal rain – review (Patrick)
  • Thermal non-equilibrium observed/modeled/measured with time lag analysis in prominences (Nicki)
  • Analysis of the spatio-temporal correlation in the IRIS & AIA intensity evolution for a rainy loop oscillating with transverse MHD waves (Patrick)
  • On the detection of velocities associated with TNE events in EIS data (Gabriel)
  • Detection of supersonic events with IRIS spectra & machine learning (Lucia)
  • Detection of periodic pulsation events (Frédéric)
  • Detection of periodic coronal rain: The “Rain bow” (Frédéric)
  • Database of periodic events (Clara)
  • Quick timelag analysis of “running window” data (Amy)
  • Prominence – coronal rain connection, and/or flare rain in some recent events (Wei, online from LMSAL)

II – Numerical models

Main topics for the presentation and discussions :
– 1D and multi-dimensional modeling
– Formation and dynamics of coronal rain
– Large scale simulations (active regions) of thermal non-equilibrium events

  • When Do Asymmetries Prevent Thermal Non-Equilibrium from Occurring (Jim)
  • Large scale parameter space study for discriminating observations between TNE and impulsive heating (Amy)
  • 1D modeling of thermal non-equilibrium (Zoran)
  • Common origin of coronal rain and solar prominences (Manuel)
  • Effect on TNE cycles of the background heating and the spatial resolution in the transition region (Craig)
  • Modeling of coronal rain, flare-associated coronal rain issue (Jeffrey)
  • Dynamics of coronal rain blobs (Ramon)
  • Multi-dimensional simulations of coronal rain and prominences (Chun)
  • Discussion on the origin of the continuous evaporation-condensation cycle oscillation in coronal loops (Shinsuke, online from Nagoya)
  • Simulation of LOS integrated 1D loops (Cooper)
  • The occurrence of TNE cycles in active regions (Clara)
  • Influence of stochasticity on TNE cycles (Patrick)
  • Co-obs SOHO/SUMER and long-period intensity pulsations on disk (Susanna)