Sumários

Problemas and examples

20 março 2020, 17:00 • João Manuel Gonçalves de Sousa Oliveira

Filaments and their stability due to magnetic tension.
Problems.

Magnetohydrodynamics. The Sun

20 março 2020, 08:00 • João Manuel Gonçalves de Sousa Oliveira

.Magnetihydrodynamics: magnetic reconnection. Debye Shielding and Debye length

The Sun.
Structure of the sun: core, radiative and convection zones, photosphere.
Atmosphere of the sun and its properties. Chromosphere, transition zone and corona.
Magnetic field of the sun.
Filaments and prominences. Flares and coronal mass ejections.


Magnetohydrodynamics

18 março 2020, 14:00 • João Manuel Gonçalves de Sousa Oliveira

MHD equations (1-fluid).
Concepts of magnetic pressure and magnetic tension.
Infinite conductivity approximation and magnetic field frozen-into the plasma.
Field lines deformation; dissipation of magnetic fields.

Interrupção lectiva

13 março 2020, 17:00 • João Manuel Gonçalves de Sousa Oliveira

Não foi leccionada aula devido a interrupção lectiva.

Interrupção lectiva

13 março 2020, 08:00 • João Manuel Gonçalves de Sousa Oliveira

Não foi leccionada aula devido a interrupção lectiva.