European Solar Physics Online Seminar Archiv

Auf Initiative der Universität Oslo nimmt die MPS an der Reihe "European Solar Physics Online Seminar" (ESPOS) teil. Details finden Sie hier: https://folk.uio.no/tiago/espos/ 
Ziel dieser Videokonferenzreihe ist es, Ideen mit einem spezialisierten Publikum breiter zu verbreiten und Studenten und anderen jungen Forschern, die nicht regelmäßig zu Konferenzen reisen, einen Einblick in die Spitzenforschung zu geben. Die ESPOS-Serie soll jeden zweiten Donnerstag um 11 Uhr stattfinden.  

A new era of solar physics commences with observations of the quiet Sun using the 4-metre Daniel K. Inouye Solar Telescope/Visible Spectropolarimeter (DKIST/ViSP). We present full-Stokes observations ... [mehr]

ESPOS -Data-driven mode l of temporal evolution of the solar Mg II h and k profiles over the solar cycle (J. Koza)

ESPOS
The solar radiation in the cores of the Mg II h & k spectral lines strongly correlates with solar magnetic activity and global variations of magnetic fields with the solar cycle. This work provides a ... [mehr]

ESPOS - Deciphering solar coronal heating: Energizing small-scale loops through surface convection (D. Nóbrega-Siverio)

ESPOS
The solar atmosphere is filled with clusters of hot small-scale loops commonly known as Coronal Bright Points (CBPs). These ubiquitous structures stand out in the Sun by their strong X-ray and/or ... [mehr]

ESPOS - Thoughts on measuring elemental abundances in the solar atmosphere (G. Del Zanna)

ESPOS
I briefly review some methods and measurements of elemental abundances in the solar atmosphere, with emphasis on the transition region and corona. Some limitations in the methods, in the modeling of ... [mehr]

ESPOS - An overview of last October's SST-SolO observational campaign (S. Danilovic)

ESPOS
We present the results of coordinated observations of the Swedish 1-m Solar Telescope with Solar Orbiter that took place from October 12th to 26th 2023. The campaign resulted in 7 datasets of various ... [mehr]

ESPOS - Detection and in-depth analyses of quiet-Sun IRIS Bright Points (Llŷr Dafydd Humphries)

ESPOS
Observations of small-scale brightenings in the low solar atmosphere can provide valuable constraints on possible heating and heat transport mechanisms. We present a method for the detection and ... [mehr]

ESPOS -Automatic Identification and Tracking of Sunspots (Charlotte Proverbs)

ESPOS
It is well understood that the dynamics of sunspots lead to energy being transferred to the solar atmosphere and stored in the coronal magnetic field. This provides a surplus of energy that may be ... [mehr]

ESPOS - Modeling of non-radially propagating halo CMEs and forecasting their arrival time at Earth(Angelos Valentino)

ESPOS
The prediction of geomagnetic storms is becoming more and more important, with the aim to take effective measures for avoiding the possible damage from the extreme events. One of the important ... [mehr]
Strong magnetic skew characterizes several non-potential structures in the solar corona, including filaments, which can erupt, bringing about major geomagnetic effects. Skew is thus an indicator of ... [mehr]

ESPOS: Ca II K brightness as a function of magnetic field strength and characteristics of the observations (M. Murabito)

ESPOS
Solar observations have often served as benchmarks of stellar conditions. A particularly illustrative example of the above link is given by the observations in the Ca II K and H lines at 393.367 nm ... [mehr]

ESPOS: Transverse oscillations in coronal loops and photospheric driving: combining high-resolution coronal and photospheric diagnostics together (N. Poirier)

ESPOS
Sustained kink oscillations in coronal loops have long been observed in TRACE, SDO/AIA, and more recently in SolO/EUI images. Although their properties are quite well-known now, their driver and ... [mehr]

ESPOS: Spectral analysis of solar filaments using Convolutional-Neural Networks (CNNs) (G. Castelló i Barceló)

ESPOS
Solar filaments (also called prominences when seen off-disk) are solar atmospheric structures consisting of dense, cool plasma clouds floating within the sun's corona. Since the beginning of solar ... [mehr]

ESPOS: Solar spectropolarimetric inversions applying Deep Learning techniques (Juan Esteban Agudelo)

ESPOS
Recent advancements in spectropolarimetric instrumentation, such as the new facilities at the GREGOR and DKIST telescopes, have generated vast amounts of data with each observation. This increase in ... [mehr]

ESPOS: First joint NuSTAR and Solar Orbiter/STIX X-ray observations of solar microflares

ESPOS
Small solar flares, or microflares (GOES B class and fainter), are frequent bursts of energy released in the Sun’s atmosphere, exhibiting heating and particle acceleration similar to that of large ... [mehr]
Magnetic reconnection and turbulence are two phenomena that are often invoked to address outstanding open questions as the energy dissipation problem and the heating and acceleration of the solar ... [mehr]
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