SOLARNET Conference: The Many Scales of the Magnetic Sun

The EST is a project aimed at studying the dynamic magnetic connectivity of the solar atmosphere, from the deep photosphere to the upper chromosphere. A polarimetrically compensated telescope with integrated multi-conjugated adaptive optics will feed a suite of spectropolarimetric instruments that allows to simultaneously observe the different layers of the solar atmosphere. In this talk, I...

The phenomena of the active Sun, like flares and coronal mass ejections (CMEs), have significant influence on Earth and our technical civilization. This is usually referred to as "Space Weather". Flares and CMEs accelerate electrons and ions to high energies. These particles are studied both remotely by ground- and space-based telescopes, and in situ by spacecraft. Energetic electrons emit...

The ESA and NASA Solar Orbiter mission started its nominal mission phase in November 2021. Three perihelions and nine remote sensing windows have been successfully completed, providing data from all the instruments on board the spacecraft. The Polarimetric and Helioseismic Imager (SO/PHI), one of Solar Orbiter's remote sensing instruments, is the first magnetograph to observe the Sun from...

Robbe Vansintjan - The SOLARNET project and the Solar Virtual Observatory (SVO)
Fabio Duvan Lora Clavijo - Effect of the Hall term on the energy release and the magnetic reconnection rate in solar flares
Merlin Mendoza - Association between Magnetic Pressure Difference and Movement of Solar Pores
Bartosz Dabrowski - Fine structures of a solar bursts observed with LOFAR
Markus Roth -...

The Fibre-Resolved opticAl and Near-ultraviolet Czerny-Turner Imaging Spectropolarimeter (FRANCIS) was developed as a low-budget prototype integral field unit for the upcoming Indian National Large Solar Telescope. At its core, FRANCIS is a fibre-fed Czerny-Turner spectrograph that is designed to work within the spectral range of 350-700 nm, hence enabling high cadence and spatially resolved...

The SunDish project aims to map and monitor the Sun at high radio frequencies with the Italian Sardinia (64-m) and Medicina (32-m) Radio Telescopes in the K-band range (18-26 GHz), up to 100 GHz in perspective. Since the two instruments were not originally designed to observe the Sun, a new solar radio imaging system was implemented. To date we acquired more than 350 solar maps with...

The mechanism for the storage and release of magnetic energy in coronal mass ejections (CMEs) remains a major unsolved problem of Heliophysics. Thus, observations of the coronal magnetic field before, during, and after the eruption are crucial both for scientific progress and space weather predictions. We use the newly built Upgraded Coronal Multichannel Polarimeter (UCoMP) instrument from...

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 at a spatial resolution of 0.1’’, taken during DKIST’s cycle 1 Operations Commissioning Phase, in the Fe I 630.1/630.2 nm and Ca II 854.2 nm lines, allowing us to examine small-scale magnetism in...

To infer the physical conditions in the solar atmosphere, it is necessary to record not only the spatial distribution of the emerging radiation, but also its spectral and polarimetric properties. Traditionally, solar instrumentation has accomplished this by recording slices through the spatio-spectral domain, and scanning in the missing dimension. A Microlensed Hyperspectral Imager (MiHI) is...

We can deduce the magnetic and dynamic status of the Sun and its possible dependence on the magnetic cycle using continuous, multi-height observations of the solar atmosphere. This activity, in turn, is critical in identifying potential precursors of space weather events such as flares and coronal mass ejections. Furthermore, multi-height observations allow us to probe the propagation of...

The improved High-resolution Fast Imager (HiFI+) completed commissioning and science verification at the 1.5-meter GREGOR solar telescope in March 2022. HiFI+ delivers diffration-limited observations in six wavelength bands, i.e., Ca II H, G-band, blue continuum, broad- and narrow-band Hα, and TiO, at a cadence of 6 s and 12 s. We report on the 2022 observing season and demonstrate the science...

Point-spread functions (PSF) describe the scattering and diffraction of light within an instrument. Deconvolving an image with the PSF enables one to correct for these instrumental effects. We revised the PSF of AIA, work on the PSF of EUI, developed a new, faster PSF deconvolution method, and checked the effects on different datasets. For AIA-193, the intensity of active regions increases by...

We present a method of reduction of the atmospheric transparency influence on ground-based spectroscopic solar data. During the observational campaign of May 2022 devoted to solar flares we encountered a complex task of data reduction. Data from FICUS wide band solar spectrometer located in Ondrejov Observatory were affected by variations of the atmospheric transparency. From the data itself...

SolarLab is a container-based observatory for full disk observations of the Sun. It will be installed and operated on site of the Thüringer Landessternwarte Tautenburg (TLS). SolarLab will be used as a laboratory for instrument development as well as for scientific observations and public outreach. The science and technical requirements for SolarLab are derived from SPRING – a future synoptic...

Developed in the framework of the H2020 SOLARNET project, the SOLARNET Virtual Observatory (SVO) aims at making solar data more findable and accessible to the solar physics community. The SVO lets you search across multiple datasets as well as the Heliophysics Event Database (HEK) and it lets you search for data that overlaps with events from the HEK. It is designed so that other event...