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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 http://cmb.physics.wisc.edu/compass.html POLAR http://cmb.physics.wisc.edu/polar/ Balloons MSAM/TopHat http://topweb.gsfc.nasa.gov/ Satellites COBE http://lambda.gsfc.nasa.gov/product/ WMAP http://map.gsfc.nasa.gov/m_mm/ms_status.html
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 75-110 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
Cosmology How did our universe form?. The study of the universe – its nature, origin and its evolution.
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The Nobel prize in Physics 2006 piet mulders VU October 4, 2006
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The Planck Satellite Hannu Kurki-Suonio University of Helsinki Finnish-Japanese Workshop on Particle Cosmology, Helsinki
The “Big Bang” Theory All of the matter and energy of space was contained at one point. From one central point, space and time as we know it began. Created.
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.
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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.
CMB Polarization Jack Replinger Observational Cosmology Lab Professor Peter Timbie University of Wisconsin-Madison.
The Big Bang Theory Astronomers theorize that the universe came into being at a single moment in an event called the big bang. All matter and energy were.
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