20–27 Mar 2026
Wild View Resorts
Africa/Gaborone timezone

Modelling Convection and Its Effects in Stellar Pulsation

26 Mar 2026, 14:30
15m
Wild View Resorts

Wild View Resorts

Plot 80 President Avenue, Kasane, Botswana
In-person - Talk 7&8 Stars, star formation Science & Engineering

Speaker

Thembeka Ntombela (University Of Zululand)

Description

In this presentation we are going to develops mathematical equations which explain how stellar oscillations interact with convection. The research defines essential mathematical components needed to model stellar oscillation responses to convective effects through the integration of linearized pulsation equations (momentum, continuity, and energy) with Mixing-Length Theory equations for convective energy transport and Time-Dependent Convection expressions that describe convective flux delays and turbulent pressure and kinetic energy variations. This presentation shows how to develop a single non-adiabatic framework which unites all necessary equations to study how convective processes affect stellar pulsation patterns in stars with outer convective zones. The research develops essential theoretical concepts which will help future asteroseismology studies to study convection-pulsation interactions.

Keywords: Stellar pulsation; Convection; Time-Dependent Convection; Mixing-Length Theory; Non-adiabatic modelling; Asteroseismology.

Stream Science or Engineering

Primary author

Thembeka Ntombela (University Of Zululand)

Presentation materials

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