Splinter Meeting Solar

From bright points to coronal mass ejections: the Sun on its various scales

Time: Wednesday September 23, 09:00-13:00 and 14:00-18:00 CEST (UTC+2)

Room: virtual room L

Convenor(s): C. Kuckein [1], I. Kontogiannis [1], A. Diercke [1], H. N. Smitha [2], A. J. Kaithakkal [3]
[1] AIP, [2] MPS, [3] KIS

The magnetic activity of the Sun manifests itself over a wide range of spatial and temporal scales. High energetic phenomena such as flares and coronal mass ejections are produced by active regions on scales of tens of megameter, which host intense concentrations of magnetic fields including sunspots. In the quiet Sun, magnetic fields are structured on the smallest resolvable spatial scales (smaller than 100 km) and give rise to a plethora of interesting features from small-scale emerging loops to bright points.
In the near future, new generation solar telescopes such as the Daniel K. Inouye Solar Telescope (DKIST) and the European Solar Telescope (EST), supplemented by the current GREGOR telescope, Vacuum Tower Telescope (VTT), and Swedish Solar Telescopes (SST) will enable us to probe the solar atmosphere and magnetic fields at an unprecedented detail. Storing and processing large amounts of data produced by these telescopes will be quite challenging. Therefore, the development of novel data reduction techniques, inversion and modelling schemes will play a crucial role in the analysis and interpretation of those observations.
With the DKIST seeing its first light, now is the right time to bring together experts to discuss the latest advancements in large- and small-scale events on the Sun, from the photosphere up to the corona and the heliosphere. This splinter session provides such a forum, welcoming participants with a background in observational and theoretical/modelling in solar physics, as well as in solar instrumentation and data-analysis techniques. The overall goal is to strengthen the solar community and enable new connections between the participants, especially in the framework of large European projects such as the EST.


Wednesday September 23, 09:00-13:00 From bright points to coronal mass ejections: the Sun on its various scales - session I (virtual room L)

09:00  Welcome

09:05  Kostas Tziotziou:
Oscillations and waves in a persistent quiet-Sun small-scale tornado

09:18  Mariarita Murabito:
The magnetic nature of chromospheric vortices

09:31  Ioannis Dakanalis:
Automatic detection of chromospheric swirls based on a morphological approach

09:44  Nitin Yadav:
Vortex Flows in the Chromosphere of a Solar Plage

09:57  Cosima Breu:
A coronal loop in a box: energy generation, heating and dynamics

10:10  Akiko Tei:
IRIS Mg II Observations and Non-LTE Modeling of Off-limb Spicules

10:23  Jack Reid:
MHD avalanches: coronal heating in braided fields

10:40  Break

11:10  Markus Roth:
New Insights on the Solar Interior Rotation

11:23  Matthias Waidele:
Investigation of surface effects of flux tubes in an artificially stabilized atmosphere

11:36  Tobias Felipe:
Chromospheric resonant cavities in umbrae: unequivocal detection and seismic applications

11:49  Vincent Böning:
Characterizing the spatial pattern of solar supergranulation using the bispectrum

12:02  J. Jaume Bestard:
The polarization of the Hα line in the quiet solar chromosphere

12:15  S. Gunár:
Quiet-sun hydrogen Lyman-alpha line profile derived from SOHO/SUMER solar-disk observations

12:28  Dušan Vukadinović:
Inference of log(gf) values for atomic lines in UV spectral range

12:41  Sergio Javier González Manrique:
On the relationship between bisector velocities and solar optical depths using the Si I 10827 Å line

Wednesday September 23, 14:00-18:00 From bright points to coronal mass ejections: the Sun on its various scales - session II (virtual room L)

14:00  Bernhard Kliem:
Parametric Study of Torus Instability Threshold

14:13  Christoph Kuckein:
Dynamics and magnetic fields in the chromospheric He I 10830 Å during a solar filament eruption

14:26  F. Zuccarello:
Analysis of the X1.6 flare in AR 12192

14:39  Sargam Mulay:
Evidence of chromospheric molecular hydrogen emission in an IRIS flare

14:52  Ze Zhong:
A data-driven magnetohydrodynamic simulation of a successful solar eruption

15:05  K. Muglach:
Photospheric flows as possible drivers of solar eruptive events

15:18  Evangelia Samara:
Improving solar wind modeling with EUHFORIA

15:31  Sowmya Krishnamurthy:
Modeling the Ca II H & K emission variations - effect of inclination on the S-index

15:44  Rositsa Miteva:
The extreme limit of space weather events – observations and interrelations

16:00  Break

16:30  Andreas Lagg:
SUNRISE III: High-resolution exploration of the solar atmospheric stratification

16:43  Carlos Quintero Noda:
Recent developments regarding the European Solar Telescope design and science capabilities

16:56  R. Kamlah:
Wavelength Dependence of Image Quality Metrics and Seeing Parameters

17:09  Ivan Milic:
Weak field approximation magnetic field diagnostic using Mg I b line

17:22  García-Rivas, M.:
Vertical magnetic fields on the boundary of evolving pores

17:35  Andrea Diercke:
Filigree in the Surroundings of Polar Crown and High-latitude Filaments

17:47  Jonathan Roberts:
Variation of Small-Scale Solar Magnetic Fields with Hinode

Related contributions