Neutron Stars and Black Holes - Lecture 1: Diffuse Stars

Neutron Stars and Black Holes - Lecture 1: Diffuse Stars

International Centre for Theoretical Sciences via YouTube Direct link

Time: AM

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1 of 47

Time: AM

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Neutron Stars and Black Holes - Lecture 1: Diffuse Stars

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  1. 1 Time: AM
  2. 2 Neutron Stars and Black Holes Lecture - 01
  3. 3 Momentous discoveries during last three years
  4. 4 What are neutron stars? How are they formed?
  5. 5 Topics
  6. 6 What are the stars? Why are they as they are?
  7. 7 Gaseous Stars
  8. 8 Stars as globes of perfect gas
  9. 9 Gravitational Pressure
  10. 10 Gravitational Pressure = P Gravity approximate GM2/R4
  11. 11 Hydrostatic Equilibrium
  12. 12 Boyle's Law
  13. 13 Equation of Hydrostatic Equilibrium
  14. 14 What are the stars?
  15. 15 Eddington's theory of stars
  16. 16 Radiation Pressure
  17. 17 How hot is the Sun?
  18. 18 Virial Theorem
  19. 19 Virial Theorem applied to the Sun
  20. 20 The interior of the Sun
  21. 21 Mean-free-path is approximate 0.5 cm. Radius approximate 1 million km.
  22. 22 In the Sun, photons take ~ 30,000 years to escape! In massive stars, it will take a million years or more!
  23. 23 Mass - Luminosity relation
  24. 24 Mass - Luminosity relation calculated by Eddington L proportional M3
  25. 25 Why are the stars as they are?
  26. 26 "Our mistake was that in estimating the congestion in the stellar ball-room we had forgotten that crinolines are no longer in fashion" - Eddington
  27. 27 Why are the masses of stars in an incredibly narrow range between 0.5-30 M sun?
  28. 28 Eddington was obscure about two things:
  29. 29 Why are the atoms as they are?
  30. 30 Atoms are as they are because they obey the rules of atomic physics.
  31. 31 Lifetime of stars
  32. 32 Why does the Sun shine?
  33. 33 How long will the heat last?
  34. 34 Sir Arthur Eddington
  35. 35 Mass Deficit
  36. 36 Proton - proton collision
  37. 37 Maxwell-Boltzmann Distribution
  38. 38 Alpha decay of radioactive nuclei
  39. 39 Quantum Tunnelling
  40. 40 Energy production in the Sun
  41. 41 Proton - proton reaction
  42. 42 Why doesn't the Sun blow up?
  43. 43 Nuclear cycles
  44. 44 To burn or not to burn? That is the question
  45. 45 Fusion reactions
  46. 46 The composition of the core when nuclear reactions finally stop
  47. 47 Q&A

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