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The UW Observational Cosmology Laboratory A Brief Tour
Our Focus The Cosmic Microwave Background (as viewed by WMAP)
What is the CMB? …A remnant from the BIG BANG
Discovery of the CMB Robert Wilson and Arno Penzias, 1964
The CMB and the Early Universe The CMB provides clues as how the Universe expanded, or inflated to its current size
The CMB and the Early Universe The CMB also provides clues about the composition of the universe…
Evolution of the Universe
The CMB and Last Scattering
Looking Back in Time
The Structure of the Universe Early perturbations in the density of matter later give rise to the formation of galaxies…
CMB Temperature Fluctuations
The CMB in 3-D
CMB Detection Ground-Based Experiments Wilson & Penzias COMPASS POLAR Balloons MSAM/TopHat Satellites COBE WMAP
CMB Detection: Ground-Based
Improved Data Acquisition CMB ~ 1965 COBE ~ 1990 WMAP 2001
CMB Detection: Balloons
CMB Detection:Satellites COBE WMAP
CMB Detection Evolution
WMAP Over Many Frequencies K-Band
WMAP Over Many Frequencies Ka-Band
WMAP Over Many Frequencies Q-Band
WMAP Over Many Frequencies V-Band
WMAP Over Many Frequencies W-Band GHz CMB peaks in this band
Wisconsin Experiments Missions: Compass POLAR MBI MBI Instrumentation Beam Mapping Device Design Mount & Pointing Structure Phase Shifters SQUIDS
MBI Beam Mapping
MBI Mount and Pointing Structure
MBI Phase Shifters
UW ObsCos Today
Our Fearless Leader Professor Peter Timbie
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Cosmology Dr Katy Lancaster. Overview The Big Bang –Formation of the Universe –The Cosmic Microwave Background –The COBE experiment The Expanding Universe.
How the Universe got its Spots Edmund Bertschinger MIT Department of Physics.
The Big Bang Astrophysics Lesson 18. Learning Objectives To know:- What is the big bang theory What is the evidence supporting it including:- Cosmological.
The measurement of q 0 If objects are observed at large distances of known brightness (standard candles), we can measure the amount of deceleration since.
Evidence to support the.... But first, what’s a scientific theory? The term “theory” in science has a different meaning than in our everyday language.
Big Bang Theory. Cosmology Study of deep space and the dynamics of universe other galaxies stars (nebula, supernova…) origin of the universe black holes.
Introduction to Astrophysics Lecture 18: Cosmology: the Hot Big Bang.
Cosmic Microwave Background Looking back in time.
Smoke This! The CMB, the Big Bang, Inflation, and WMAP's latest results Spergel et al, 2006, Wilkinson Microwave Anisotropy Probe (WMAP) Three Year results:
19 The Big Bang Evidence The Science of Creation.
Simulating the Interferometer In order to simulate the performance of an interferometer, 20 by 20 degree sections were extracted from the simulated CMB.
Concluding Comments For the Course Cosmology Fascinating Past Highly accomplished present (for example, the material covered in this course). Really exciting.
Olbers paradox Why is the sky dark at night? Of course, the Sun’s gone down! But more careful consideration of this simple fact led early astronomers to.
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