The Sun I

1
The Sun I
2
The Sun as a model for stars and astrophysics in
general
3
Close-up of a G2 Main Sequence Star
4
The Solar Interiorthe prime application of the
equations of stellar structure
5
Density in the solar interior
6
Temperature in the Solar Interior
7
The Faint Young Sun Paradox
8
Tests of Stellar Interior Models

• Mass, luminosity, temperature of Sun and stars
• Solar neutrinos
• Helioseismology (and asteroseismology)

9
Helioseismology Eigenmodes of the Sun
10
Solar Neutrino Experiments
11
Layers of the Solar Atmosphere

• Photosphere
• Chromosphere
• Corona

12
Granules in the Solar Atmosphere
13
The Solar Spectrum and the Photospheric Opacity
Mechanism