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The Invisible Universe, Revealed: From Glowing ...

Avatar for Anna Ho Anna Ho
December 14, 2016
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The Invisible Universe, Revealed: From Glowing Dust to Spinning Stellar Corpses

Avatar for Anna Ho

Anna Ho

December 14, 2016

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Transcript

  1. The Invisible Universe, Revealed: From Glowing Dust to Spinning Stellar

    Corpses Anna Ho (Caltech) [email protected]

  2. Visible Light

  3. Visible Light

  4. Visible Light

  5. None

  6. infrared

  7. ultraviolet infrared

  8. gamma ray x-ray ultraviolet infrared microwave radio

  9. gamma ray x-ray ultraviolet infrared microwave radio

  10. gamma ray x-ray ultraviolet infrared microwave radio

  11. gamma ray x-ray ultraviolet infrared microwave radio

  12. gamma ray x-ray ultraviolet infrared microwave radio

  13. gamma ray x-ray ultraviolet infrared microwave radio

  14. gamma ray x-ray ultraviolet infrared microwave radio

  15. gamma ray x-ray ultraviolet infrared microwave radio

  16. gamma ray x-ray ultraviolet infrared microwave radio

  17. gamma ray x-ray ultraviolet infrared microwave radio

  18. gamma ray x-ray ultraviolet infrared microwave radio

  19. gamma ray x-ray ultraviolet infrared microwave radio

  20. gamma ray x-ray ultraviolet infrared microwave radio

  21. gamma ray x-ray ultraviolet infrared microwave radio

  22. gamma ray x-ray ultraviolet microwave infrared radio

  23. gamma ray x-ray ultraviolet microwave radio infrared

  24. radio infrared

  25. infrared

  26. infrared

  27. infrared

  28. Image Credit: Spitzer Space Telescope, NASA/JPL-Caltech The Orion Nebula infrared

  29. M31: The Andromeda Galaxy (visible light) infrared

  30. M31: The Andromeda Galaxy (visible light) M31: The Andromeda Galaxy

    (infrared light) infrared Image Credit: Spitzer Space Telescope, NASA/JPL-Caltech/K. Gordon (University of Arizona)

  31. infrared

  32. radio

  33. Bell Labs & Karl Jansky, 1928 radio

  34. Bell Labs & Karl Jansky, 1928 radio

  35. Bell Labs & Karl Jansky, 1928 radio

  36. Bell Labs & Karl Jansky, 1928 radio

  37. Bell Labs & Karl Jansky, 1928 Grote Reber, 1932 radio

  38. Bell Labs & Karl Jansky, 1928 Grote Reber, 1932 radio

  39. Bell Labs & Karl Jansky, 1928 Grote Reber, 1932 radio

  40. radio

  41. Image Credit: National Radio Astronomy Observatory / AUI

  42. Image Credit: National Radio Astronomy Observatory / AUI

  43. Image Credit: National Radio Astronomy Observatory / AUI

  44. Image Credit: National Radio Astronomy Observatory / AUI

  45. radio Image Credit: VLA / NOAO-CTIO Centaurus A, an elliptical

    galaxy

  46. radio Image Credit: VLA / NOAO-CTIO Centaurus A, an elliptical

    galaxy

  47. radio The M81 galaxy group Image Credit: Min Yun, NRAO

  48. radio The M81 galaxy group Image Credit: Min Yun, NRAO

  49. Jocelyn Bell, Cambridge 1967 radio

  50. Jocelyn Bell, Cambridge 1967 radio

  51. Jocelyn Bell, Cambridge 1967 radio

  52. Jocelyn Bell, Cambridge 1967 radio

  53. Jocelyn Bell, Cambridge 1967 radio

  54. The Crab Pulsar ~6,523 light years away Spins ~30 times

    per second radio

  55. The Crab Pulsar ~6,523 light years away Spins ~30 times

    per second radio

  56. The Crab Pulsar ~6,523 light years away Spins ~30 times

    per second radio

  57. PSR B1937+21 radio

  58. PSR B1937+21 radio

  59. PSR B1937+21 ~10,000 light years away Spins ~642 times per

    second radio

  60. PSR B1937+21 ~10,000 light years away Spins ~642 times per

    second radio

  61. PSR B1937+21 ~10,000 light years away Spins ~642 times per

    second radio The first millisecond pulsar

  62. Techniques

  63. How do you find a pulsar? radio

  64. How do you find a pulsar? 1. Big eyes radio

  65. How do you find a pulsar? 1. Big eyes radio

  66. How do you find a pulsar? The Green Bank Telescope,

    West Virginia 100 m (330 ft) across 1. Big eyes radio

  67. How do you find a pulsar? 1. Big eyes radio

  68. How do you find a pulsar? The Arecibo telescope, Puerto

    Rico 300 m (980 ft) across 1. Big eyes radio

  69. How do you find a pulsar? 1. Big eyes 2.

    Powerful computers radio

  70. How do you find a pulsar? 1. Big eyes 2.

    Powerful computers radio

  71. How do you find a pulsar? 1. Big eyes 2.

    Powerful computers radio

  72. How do you find a pulsar? 1. Big eyes 2.

    Powerful computers radio

  73. How do you find a pulsar? 1. Big eyes 2.

    Powerful computers radio

  74. How do you find a pulsar? 1. Big eyes 2.

    Powerful computers radio

  75. How do you find a pulsar? 1. Big eyes 2.

    Powerful computers radio

  76. How do you find a pulsar? 1. Big eyes 2.

    Powerful computers radio
  77. None
  78. None

  79. Terzan 5aj > 28,000 light years away Spins ~170 times

    per second radio

  80. Another trick of the radio astronomy trade: radio Interferometry

  81. Another trick of the radio astronomy trade: radio Interferometry The

    Very Large Array (VLA), New Mexico

  82. radio Another trick of the radio astronomy trade: Interferometry The

    Very Long Baseline Array (VLBA)

  83. OPTICAL The Milky Way

  84. OPTICAL RADIO INFRARED X-RAY GAMMA RAY The Milky Way