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16th European Solar Physics Meeting

6–10 Sept 2021
Online
Europe/Rome timezone

Session

Poster Session 3.1

7 Sept 2021, 09:00
Online

Online

Conveners

Poster Session 3.1

  • Etienne Pariat (LESIA, Observatoire de Paris)

Presentation materials

Zoom link
  1. 494. Parameter study of 2D convection and supercomputer performance analysis
    Johannes Tschernitz (University of Graz)
    07/09/2021, 09:00
    Session 1 - Solar Interior, Dynamo, Large-Scale Flows and the Solar Cycle
    Poster

    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...

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  2. 150. IRIS view of the solar cycle 24: variability of the Mg II k & h lines
    Dr Julius Koza (Astronomical Institute, Slovak Academy of Sciences, Tatranska Lomnica, Slovakia)
    07/09/2021, 09:13
    Session 1 - Solar Interior, Dynamo, Large-Scale Flows and the Solar Cycle
    Poster

    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...

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  3. 430. Asymmetry of weak photospheric fields in solar cycles 21-24: Implications to magnetic field structure and diffusion
    Prof. Kalevi Mursula (University of Oulu)
    07/09/2021, 09:26
    Session 1 - Solar Interior, Dynamo, Large-Scale Flows and the Solar Cycle
    Poster

    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...

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  4. 156. Modeling star spots on low mass stars observed by TESS
    Mr Kamil Bicz (Astronomical Institute of the University of Wrocław)
    07/09/2021, 09:39
    Session 1 - Solar Interior, Dynamo, Large-Scale Flows and the Solar Cycle
    Poster

    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)...

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  5. 529. Status of the Galileo Solar Space Telescope Mission
    Luis Eduardo Vieira (National Institute for Space Research (INPE/Brazil))
    07/09/2021, 09:52
    Session 1 - Solar Interior, Dynamo, Large-Scale Flows and the Solar Cycle
    Poster

    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...

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  6. 503. Modeling the evolution of LOS magnetograms of emerging solar active regions.
    Mariano Poisson (Instituto de Astronomía y Física del Espaco (IAFE-UBA-CONICET))
    07/09/2021, 10:05
    Session 1 - Solar Interior, Dynamo, Large-Scale Flows and the Solar Cycle
    Poster

    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...

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  7. 409. The asymmetric solar rotation
    Prof. Markus Roth (Leibniz-Institut für Sonnenphysik)
    07/09/2021, 10:18
    Session 1 - Solar Interior, Dynamo, Large-Scale Flows and the Solar Cycle
    Poster

    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...

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