The interior of stars (part III)

31 Março 2020, 13:00 • Israel Matute

Energy generation in the interior of stars (part II):

• Stellar nucleosynthesis:

• Hydrogen burning: P-P & CNO chains;

• Helium burning: the Triple-alpha process;

• Fusion processes up to 56Fe;

• Neutron capture for elements >56Fe;

• Bounding Energy & Rate of different reactions.

• Equation of Energy Generation.

Stellar Interiors (part II)

30 Março 2020, 13:00 • Israel Matute

Energy generation in the interior os stars (I).

• Minimum Pressure & Temperature @ centers

• Virial Theorem

• Sources of Energy & their timescales: Chemical vs Gravitational vs Nuclear

• How do nuclear reactions occur?

• Coulomb barrier

• Tunneling effect

• Nuclear reaction rate & Gamov Peak

Exercises Series #3 - Stellar atmospheres (part I)

26 Março 2020, 15:00 • Israel Matute

Lab lecture dedicated to the discussion and the solving of the first part of exercises posted in the third series of exercises and dedicated to the concepts introduced for stellar atmospheres.

The stellar interiors (part I)

26 Março 2020, 14:00 • Israel Matute

Interior of stars

How do we create stellar models to describe the interiors of stars? --> through basic physical principles:

• Hydrostatic Equilibrium eq.: the equilibrium between pressure & gravity;

• Mass conservation;

• Pressure Equation of State.

Not Taught.

24 Março 2020, 13:00 • Israel Matute

Lecture canceled due to unavoidable last-minute personal commitment.