Conveners
Poster Session 3.1
- Etienne Pariat (LESIA, Observatoire de Paris)
We perform hydrodynamic 2D simulations of solar convection. We aim to study the dependence of different physical parameters, the box size, and box aspect ratio on the actual convective motions we observe in the numerical model. Furthermore, we need to evaluate the performance of different Input/Output strategies on supercomputers, in order to plan and run future large-scale...
The poster presents observations of variability of the emission cores of Mg II k & h lines in the solar cycle 24 and their center-to-limb variations acquired by the Interface Region Imaging Spectrograph (IRIS) in the years 2013-2020. We use 91 full-disk NUV IRIS mosaics covering the raising phase, maximum, decline, and the end of the solar cycle 24. For this analysis, the solar disk is divided...
Weak magnetic field elements make a dominant contribution to the total magnetic field on the solar surface. Still, quite little is known of their properties and long-term occurrence.
We study the spatial-temporal evolution of the weak-field shift and skewness of the distribution of photospheric magnetic field values during solar cycles 21-24. We use WSO and SOLIS/VSM synoptic maps to...
Since the release of the first TESS sector the possibility of examining stellar flares and stellar dynamo compared to the solar dynamo and solar flares has increased. Thanks to this observations we tried to estimate staining of low mass stars with visible variability of their luminosity. We managed to do this using newly created software called BASSMAN (Best rAndom StarSpots Model calculAtioN)...
Here we present the concept feasibility study of the Galileo Solar Space Telescope Mission (GSST Mission) proposed by the Brazilian National Institute for Space Research (INPE). The study was conducted at the Space Missions Integrated Design Center (CPRIME - Centro de Projeto Integrado de Missões Espaciais). The GSST shall contribute to the understanding of the evolution of the magnetic...
The presence of elongated magnetic polarities in active-region (AR) line-of-sight (LOS) magnetograms indicates the existence of twist in the flux tubes forming them. These elongations, a.k.a. magnetic tongues, which are mostly visible during the emergence phase of ARs, determine the magnetic field distribution observed in LOS magnetograms, and therefore, affect the measurement of AR...
Today’s picture of the internal solar rotation rate profile results essentially from helioseismic analyses of frequency splittings of resonant acoustic waves. This has the limitation that the rotation profile is an average over the northern and southern hemispheres.
Here we present another, complementary estimation of the internal solar rotation rate using the perturbation of the shape of...
