The UW Observational Cosmology Laboratory A Brief Tour.

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Presentation transcript:

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

Gravitational Lensing

The Structure of the Universe Early perturbations in the density of matter later give rise to the formation of galaxies…

CMB Temperature Fluctuations

CMB Polarization

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

COMPASS

POLAR

MBI: Electronics

Radio Telescopes

MBI Beam Mapping

MBI Mount and Pointing Structure

MBI Phase Shifters

MBI SQUIDs

UW ObsCos Today

Our Fearless Leader Professor Peter Timbie

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