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

Transcript

1. The Invisible Universe, Revealed: From Glowing Dust to Spinning Stellar Corpses Anna Ho (Caltech) ah@astro.caltech.edu
2. Visible Light
3. Visible Light
4. Visible Light
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
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