Dark Matter

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Gravity of dark matter is what caused protogalactic clouds to contract early in time. Tuesday, March 12, 13 68
Insert TCP 6e Figure 22.2 WIMPs can’t collapse to the center because they don’t radiate away their orbital energy. Tuesday, March 12, 13 69
Page 1 and 2:
ASTR 115 03/12/13 “Why does a vol
Page 3 and 4:
SCHEDULE CHANGES •The extra credi
Page 5 and 6:
If the center of a galaxy is unusua
Page 7 and 8:
The highly redshifted spectra of qu
Page 9 and 10:
THOUGHT QUESTION What can you concl
Page 11 and 12:
Quasars powerfully radiate energy o
Page 13 and 14:
The lobes of radio galaxies can ext
Page 15 and 16:
Radio galaxies don’t appear as qu
Page 17 and 18: WHAT IS THE POWER SOURCE FOR QUASAR
Page 19 and 20: ENERGY FROM A BLACK HOLE •Gravita
Page 21 and 22: DO SUPERMASSIVE BLACK HOLES REALLY
Page 23 and 24: The orbital speed and distance of g
Page 25 and 26: GALAXIES AND BLACK HOLES •The mas
Page 27 and 28: HOW DO QUASARS LET US STUDY GAS BET
Page 29 and 30: CHAPTER 22 DARK MATTER, DARK ENERGY
Page 31 and 32: UNSEEN INFLUENCES Dark Matter: An u
Page 33 and 34: WHAT IS THE EVIDENCE FOR DARK MATTE
Page 35 and 36: Rotation curve A plot of orbital ve
Page 37 and 38: Who has the largest orbital velocit
Page 39 and 40: The rotation curve of the Milky Way
Page 41 and 42: Mass within the Sun’s orbit: 1.0
Page 43 and 44: We can measure the rotation curves
Page 45 and 46: Broadening of spectral lines in ell
Page 47 and 48: THOUGHT QUESTION What would you con
Page 49 and 50: We can measure the velocities of ga
Page 51 and 52: Clusters contain large amounts of X
Page 53 and 54: Tuesday, March 12, 13 53
Page 55 and 56: THOUGHT QUESTION What kind of measu
Page 57 and 58: DOES DARK MATTER REALLY EXIST Inser
Page 59 and 60: OUR OPTIONS 1. Dark matter really e
Page 61 and 62: WHAT MIGHT DARK MATTER BE MADE OF T
Page 63 and 64: TWO BASIC OPTIONS •Ordinary Dark
Page 65 and 66: MACHOs occasionally make other star
Page 67: WHAT IS THE ROLE OF DARK MATTER IN
Page 71 and 72: WHAT ARE THE LARGEST STRUCTURES IN
Page 73 and 74: Time in billions of years 0.5 2.2 5
Page 75 and 76: Structures in galaxy maps look very
Page 77 and 78: http://apod.nasa.gov/apod/ap070827.
Page 79 and 80: Does the universe have enough kinet
Page 81 and 82: Since the amount of dark matter is
Page 83 and 84: Estimated age depends on the amount
Page 85 and 86: THOUGHT QUESTION Suppose that the u
Page 87 and 88: Insert TCP 6e Figure 20.14 The brig
Page 89 and 90: http://apod.nasa.gov/apod/ap071021.
Page 91 and 92: IN NO PARTICULAR ORDER (IGNORING HU
Page 93 and 94: SUPER VOLCANOS •A super volcano e
Page 95 and 96: GAMMA-RAY BURST •To see a gamma-r
Page 97 and 98: EARTH’S MAGNETIC FIELD FLIPPING
Page 99 and 100: SUN HEATING UP •Regardless of all
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Dark Matter

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