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17th European Solar Physics Meeting ESPM-17

9–13 Sept 2024
Turin, Italy
Europe/Rome timezone

Local Organising Committee

Session

Solar interior, sub-surface flows and long-term variability

1
9 Sept 2024, 09:10
Turin, Italy

Turin, Italy

Centro Congressi Unione Industriali Torino Via Vela, 17 - 10128 Torino

Conveners

Solar interior, sub-surface flows and long-term variability

  • Istvan Ballai (University of Sheffield)

Presentation materials

There are no materials yet.

  1. 247. Dynamo of the solar interior: Powering the decadal cycle and Its comparison to stellar magnetic cycles
    Dr Quentin Noraz (Rosseland Centre for Solar Physics, University of Oslo, Norway)
    09/09/2024, 09:10
    Solar interior, sub-surface flows and long-term variability
    Invited

    The solar magnetism is generated and sustained through an internal dynamo. This process is driven by the combined action of two main mechanisms: turbulent convective motions and large-scale differential rotation (DR). The subsequent magnetic-field build-up can lead to intense surface eruptive events, but also sustain longer-term magnetic cyclic variabilities, such as the Sun's 11-year cycle....

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  2. 262. The Sun’s differential rotation is controlled by baroclinically-unstable high-latitude inertial modes
    Yuto Bekki (Max Planck Institute for Solar System Research)
    09/09/2024, 09:35
    Solar interior, sub-surface flows and long-term variability
    Talk

    Helioseismology has revealed that the Sun’s differential rotation profile substantially deviates from the well-known Taylor-Proudman theorem. It has been postulated that this deviation arises because the poles are warmer than the equator by a few degrees. Recently, global inertial modes of oscillation have been observed and identified on the Sun, including high-latitude modes with m=1,2,3....

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  3. 345. EPS Invited Speaker - The role of convection during active region emergence
    Hannah Schunker (University of Newcastle)
    09/09/2024, 09:50
    Solar interior, sub-surface flows and long-term variability
    Invited

    Abstract: The role of convection in forming active regions is controversial. In the thin-flux-tube model, the properties of the active regions are set by the flows in the flux tube during its rise: in the mean-field framework the properties are set by the interaction of the magnetic field with the surrounding turbulent convective motions. Recent observational results point to convection...

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  4. 71. Modelling solar irradiances with proxies of activity along a cycle
    Evangelia Deliporanidou (University of Cambridge)
    09/09/2024, 10:15
    Solar interior, sub-surface flows and long-term variability
    Talk

    There is a pressing need to model XUV solar irradiances, given the scarcity of current measurements. One of the measurable effects of a solar cycle is the significant (more than one order of magnitude) variation in XUV irradiance. XUV radiation drives the ionosphere and the thermosphere. As a first step in the modelling, we present EUV irradiances in a sample of strong spectral lines formed in...

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  5. 349. EPS Invited Speaker
    Hannah Schunker (University of Newcastle)
  6. 348. EPS Invited Speaker
    Hannah Schunker (University of Newcastle)
    Invited
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