Pulsars: Properties, Radiation, and Discovery - Lecture 8

Pulsars: Properties, Radiation, and Discovery - Lecture 8

International Centre for Theoretical Sciences via YouTube Direct link

Radio emission from the Crab Nebula is very strongly linearly polarized.

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12 of 50

Radio emission from the Crab Nebula is very strongly linearly polarized.

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Pulsars: Properties, Radiation, and Discovery - Lecture 8

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  1. 1 Time: AM
  2. 2 A Journey through the Universe
  3. 3 Pulsars Lecture - 08
  4. 4 The remarkable story of the Crab Nebula
  5. 5 Crab Nebula is expanding with a velocity ~ 1500 km per second
  6. 6 LINE emission & Continuous emission
  7. 7 Continuous emission is strongly polarized
  8. 8 Expanding wisps near the centre of the nebula
  9. 9 Acceleration of the nebula!
  10. 10 Radio emission from the Crab!
  11. 11 A great prediction by Shklovskii
  12. 12 Radio emission from the Crab Nebula is very strongly linearly polarized.
  13. 13 X-Ray emission from the nebula!
  14. 14 The great puzzle!
  15. 15 The great central engine
  16. 16 An extraordinary conjecture by Pacini!
  17. 17 Properties of neutron stars
  18. 18 Oscillating charge will radiate
  19. 19 A Rotating Magnet will radiate
  20. 20 An extraordinary conjecture by Pacini!
  21. 21 Meanwhile in Cambridge!
  22. 22 Scintillation, or twinkling' of compact radio sources
  23. 23 Jocelyn Bell
  24. 24 An unknown scintillating source
  25. 25 6 Auguest 1967
  26. 26 Periodic pulsations discovered from the same source on 28 November 1967.
  27. 27 The great discovery announced!
  28. 28 Twinkle, twinkle little star
  29. 29 A video made with a TV camera showed that Baade's star pulsed with a period of 33 ms!
  30. 30 The great prediction by Franco Pacini
  31. 31 Neutron Stars as Pulsars
  32. 32 Average pulse profiles are unique to each pulsar. They are like their 'finger print'.
  33. 33 Micro structure of individual pulses
  34. 34 "Nulling" of pulsars
  35. 35 Neutron stars are powerful dynamos!
  36. 36 Pulsar electrodynamics
  37. 37 Magnetosphere of the neutron star
  38. 38 Light Cylinder
  39. 39 Radiation from an accelerated charge
  40. 40 Radiation from a relativistic charge
  41. 41 Synchrotron Radiation
  42. 42 Radio radiation from pulsars
  43. 43 The Polar Cap Model for pulsars
  44. 44 A hollow cone of radiation
  45. 45 Pulsed emission from the CRAB Pulsar.
  46. 46 Radiation from a relativistic charge
  47. 47 Pair creation
  48. 48 Coherence of the radio radiation
  49. 49 Brightness temperature limit
  50. 50 Q&A

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