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The UW Observational Cosmology Laboratory

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.

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The UW Observational Cosmology Laboratory

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  1. The UWObservational Cosmology Laboratory A Brief Tour

  2. Our Focus The Cosmic Microwave Background (as viewed by WMAP)

  3. What is the CMB? …A remnant from the BIG BANG

  4. Discovery of the CMB Robert Wilson and Arno Penzias, 1964

  5. The CMB and the Early Universe The CMB provides clues as how the Universe expanded, or inflated to its current size

  6. The CMB and the Early Universe The CMB also provides clues about the composition of the universe…

  7. Evolution of the Universe

  8. The CMB and Last Scattering

  9. Looking Back in Time

  10. Gravitational Lensing

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

  12. CMB Temperature Fluctuations

  13. CMB Polarization

  14. The CMB in 3-D

  15. 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

  16. CMB Detection: Ground-Based

  17. CMB Detection: Balloons

  18. CMB Detection:Satellites • COBE • WMAP

  19. CMB Detection Evolution

  20. WMAP Over Many Frequencies K-Band

  21. WMAP Over Many Frequencies Ka-Band

  22. WMAP Over Many Frequencies Q-Band

  23. WMAP Over Many Frequencies V-Band

  24. WMAP Over Many Frequencies W-Band • 75-110 GHz • CMB peaks in this band

  25. Wisconsin Experiments Missions: • Compass • POLAR • MBI MBI Instrumentation • Beam Mapping • Device Design • Mount & Pointing Structure • Phase Shifters • SQUIDS

  26. COMPASS

  27. POLAR

  28. MBI: Electronics

  29. Radio Telescopes

  30. MBI Beam Mapping

  31. MBI Mount and Pointing Structure

  32. MBI Phase Shifters

  33. MBI SQUIDs

  34. UW ObsCos Today

  35. Our Fearless Leader Professor Peter Timbie

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