Lab11_Hubble - Astro. Lab 11 Yichen Zhang Structure in the...

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Astro. Lab 11 Yichen Zhang Structure in the Universe Hubble’s Law Measure Speed Measure Distance Age of the Universe Astronomy Lab 11: Measuring the Hubble Constant Yichen Zhang Department of Astronomy, UF April 4th, 2010 1 / 33
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Astro. Lab 11 Yichen Zhang Structure in the Universe Hubble’s Law Measure Speed Measure Distance Age of the Universe Outline 1 What does the Universe look like? 2 Hubble’s Law: Foundation of Modern Cosmology 3 Measuring the Receding Speed 4 Measuring the Distance 5 Age of the Universe 2 / 33
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Astro. Lab 11 Yichen Zhang Structure in the Universe Hubble’s Law Measure Speed Measure Distance Age of the Universe Outline 1 What does the Universe look like? 2 Hubble’s Law: Foundation of Modern Cosmology 3 Measuring the Receding Speed 4 Measuring the Distance 5 Age of the Universe 3 / 33
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Astro. Lab 11 Yichen Zhang Structure in the Universe Hubble’s Law Measure Speed Measure Distance Age of the Universe What does the Universe look like? Earth Solar System (AU pc, 10 13 10 18 m) 4 / 33
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Astro. Lab 11 Yichen Zhang Structure in the Universe Hubble’s Law Measure Speed Measure Distance Age of the Universe What does the Universe look like? Solar System Milky Way (pc 10 kpc, 10 18 10 22 m) 5 / 33
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Astro. Lab 11 Yichen Zhang Structure in the Universe Hubble’s Law Measure Speed Measure Distance Age of the Universe What does the Universe look like? Milky Way its neighborhood (10 kpc 100 kpc, 10 22 10 23 m) 6 / 33
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Astro. Lab 11 Yichen Zhang Structure in the Universe Hubble’s Law Measure Speed Measure Distance Age of the Universe What does the Universe look like? Milky Way’s neighborhood Local Group (10 kpc 10 Mpc, 10 23 10 25 m) 7 / 33
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Astro. Lab 11 Yichen Zhang Structure in the Universe Hubble’s Law Measure Speed Measure Distance Age of the Universe What does the Universe look like? Local Group / Galaxy Cluster Cluster of Galaxy Cluster (10 Mpc 100 Mpc, 10 25 10 26 m) 8 / 33
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Yichen Zhang Structure in the Universe Hubble’s Law Measure Speed Measure Distance Age of the Universe What does the Universe look like? On the scale larger than that, the Universe becomes
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Lab11_Hubble - Astro. Lab 11 Yichen Zhang Structure in the...

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