Chapter15 - Big Bang, Black Holes, No Math ASTR/PHYS 109...

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Big Objects and Black Holes Topic 1: Galaxy Formation Big Bang, Black Holes, No Math 1 Big Bang, Black Holes, No Math ASTR/PHYS 109 Dr. David Toback Lectures 19 & 20
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Big Objects and Black Holes Topic 1: Galaxy Formation Big Bang, Black Holes, No Math 2 Prep for Today (Is now due) – L20 Reading: BBBHNM 16 Reading questions: Chapter 16 End-of-Chapter Quizzes: Chapter 14 Paper Stuff Paper 2: Misgraded? Let us know. Revision reviews due Monday Paper 3: CPR due Wednesday
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Big Objects and Black Holes Topic 1: Galaxy Formation Big Bang, Black Holes, No Math 3 Quick Review: Various Times Walking through what happens during each of a number of different periods in time The VERY early universe The first three Minutes The next 300,000 years The next billion years ~13 billion years later (now) The ultimate fate of the universe? } Chap 14 } Chaps 15-17 } Unit 6 } Chap 13
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Big Objects and Black Holes Topic 1: Galaxy Formation Big Bang, Black Holes, No Math 4 From the Early Universe to Galaxies After about ~3 minutes things are cool enough for nuclei to form After ~300,000 years things are cool enough for electrons and nuclei combine to form atoms
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Big Objects and Black Holes Topic 1: Galaxy Formation Big Bang, Black Holes, No Math 5 Some Time Passes The Transition From a Hot Universe to a Cool Universe
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Big Objects and Black Holes Topic 1: Galaxy Formation Big Bang, Black Holes, No Math 6 Where are we now in the history? A billion years after the bang
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Big Objects and Black Holes Topic 1: Galaxy Formation Big Bang, Black Holes, No Math 7 Unit 5 Overview It turns out that the way Galaxies and Stars form is very similar… start there The way stars die depends on the star itself… sometimes they die to form a Black Hole Black Holes are some of the weirdest things in the Universe… In many ways the formation of Black Holes is like the Big Bang in Reverse
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Big Objects and Black Holes Topic 1: Galaxy Formation Big Bang, Black Holes, No Math 8 Unit 5: Big Objects and Black Holes 1. Galaxy Formation 2. Star Birth and Death Black Hole Formation 1. Properties of Black Holes Today
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Big Objects and Black Holes Topic 1: Galaxy Formation Big Bang, Black Holes, No Math Galaxy Formation: Overview A gravity dominated Universe allows galaxies to form Galaxy formation When do galaxies form? 9
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Big Objects and Black Holes Topic 1: Galaxy Formation Big Bang, Black Holes, No Math 10 A Neutral Universe After the electrons and protons combine to form atoms the Universe is almost completely neutral i.e., neutrally charged Why is this so important? All the particles in the Universe stop attracting each other due to their electric charge Not completely true, just true outside the atoms Basically can ignore electric charge from here on out
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Big Objects and Black Holes Topic 1: Galaxy Formation Big Bang, Black Holes, No Math 11 A Gravity Dominated Universe The only thing left is gravity! The gravitational attraction
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This note was uploaded on 01/06/2012 for the course PHYS 109 taught by Professor Davidtoback during the Fall '11 term at Texas A&M.

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Chapter15 - Big Bang, Black Holes, No Math ASTR/PHYS 109...

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