Astro 10-Lecture 14: Large Scale Structure and Cosmology
Extra Credit Assignment
Review: Structure in the Universe
Superclusters, Walls, and Voids.
But on the largest scales the universe begins to look smooth
ConcepTest
Which brings us to cosmology.
Start with something even more basic...
Possible Reasons….
Slide 10
Searching for an answer
How old is the universe?
“The Observable Universe”
“Lookback time”
Assumptions in Cosmology
Slide 16
Basic Concepts of Cosmology
Basic Concepts: The Big-Bang Theory
More Basic Concepts of Cosmology
The geometry of the universe
Slide 21
Mass and Energy determine the curvature of the universe
Slide 23
Slide 24
How do we tell what the geometry of the universe is?
Determining the Geometry of Space-Time
Slide 27
Same is true for volume
How else can we measure the geometry of Space-Time?
Contributions to the Mass and Energy of the Universe
What is Dark Matter?
Back to the Big Bang Theory
A Big-Bang Timeline
Slide 35
The Four Forces
Slide 37
Inflation
Inflation flattens the universe
Predictions of Inflation Theory
Continuing the timeline
Big Bang Nucleosynthesis
Slide 43
Slide 44
Continuing the Big-Bang Timeline
The Cosmic Microwave Background
Slide 47
Slide 48
Cosmic Microwave Background
So back to the problem: Where is the missing mass/energy?
The Cosmological Constant
The Cosmological Constant aka Dark Energy
The properties of dark energy
Slide 54
Structure formation
Slide 56
Author: Eric Korpela
E-mail: korpela at ssl.berkeley.edu
Homepage: http://setiathome.ssl.berkeley.edu/~korpela/
Further information: For the educational use of the Vista Astro 10 class only