sci151r2week4content

sci151r2week4content - The galaxies Star populations...

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SCI 151 Astronomy Week Four Content Outline TOPICS AND OBJECTIVES The Large Scale Universe Describe the origin of the universe. Examine the hierarchy of the universe. Describe the structure of the Milky Way Galaxy. CONTENT OUTLINE Introduction to the Milky Way Galaxy Milky Way Galaxy Diameter 100,000 light years across Number of stars Other constituents Location of the Sun Life cycle of stars Interstellar medium Composition How we study the interstellar medium Star birth Infrared stars Examples Star clusters Open Globular Other planetary systems How to search Evidence Origin of solar system Characteristics Nebula theory ( NOTE: The origin of the solar system is included here alongside the origin of the stars to demonstrate to students that both use similar processes.) Death of stars Supernova enrich the interstellar medium New stars form from the material of dying stars
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Unformatted text preview: The galaxies Star populations Population I and II stars Unique differences Formation of a galaxy Explain how the cluster turn-off point reveals age Formation Page 1 of 2 SCI151r2 SCI 151 Astronomy Spiral arms Measuring star distances and period luminosity relationship Other galaxies Types Unusual galaxies, such as quasars Structure of universe Clusters and superclusters Look back in time Steady state – constant creation Big Bang – one creation The origin of the universe Recession of the galaxies Red shift Hubble’s law Origin of universe theories Look back in time Steady state – constant creation Big Bang – one creation Big Bang evidence Microwave background radiation Cosmic nucleosynthesis ratio of hydrogen to helium Quasars as young galaxies Page 2 of 2 SCI151r2...
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This note was uploaded on 04/07/2010 for the course SCI 151 taught by Professor Jackson during the Fall '09 term at University of Phoenix.

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sci151r2week4content - The galaxies Star populations...

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