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Cosmology from Space

Cosmology from Space. Max Tegmark, MIT. Smorgasbord. Hinshaw, Wandelt. Galaxy surveys. Microwave background. Supernovae Ia. THE COSMIC SM Ö RG Å SBORD. Gravitational lensing. Big Bang nucleosynthesis. Abazajian. Galaxy clusters. Neutral hydrogen tomography. Lyman  forest.

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Cosmology from Space

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  1. Cosmology from Space Max Tegmark, MIT

  2. Smorgasbord Hinshaw, Wandelt Galaxy surveys Microwave background Supernovae Ia THE COSMIC SMÖRGÅSBORD Gravitational lensing Big Bang nucleosynthesis Abazajian Galaxy clusters Neutral hydrogen tomography Lyman  forest

  3. What have we learned?

  4. OUR PLACE IN SPACE

  5. DSE

  6. OUR PLACE IN TIME

  7. Brief History of our Universe Fluctuation generator Fluctuation amplifier Hot Dense Smooth 400 Cool Rarefied Clumpy (Graphics from Gary Hinshaw/WMAP team)

  8. Formation movies

  9. EVIDENCE?

  10. What we’ve learned about the cosmic expansion history from SN Ia Riess et al, astro-ph/0611572

  11. 2008: Nolta et al 2008, arXiv:0803.0593

  12. Cmbgg OmOl

  13. Cmbgg OmOl Using WMAP3 + SDSS LRGs: 75% 21% 4%

  14. Cmbgg OmOl 386 430 13.8

  15. 75% 21% 4% Cosmological data Cosmological Parameters

  16. 75% 21% 4% Cosmological data Cosmological Parameters ARE WE DONE?

  17. 75% 21% 4% ? Cosmological data Cosmological Parameters Why these particular values? Nature of dark matter? Fundamental theory Nature of dark energy? Nature of early Universe?

  18. Four roads to dark matter: catch it, infer it, make it, weigh it Production: Direct: Gravitational: Indirect: Dermer, Kusenko, … GLAST launched 6/11-08 Wandelt Planck launch scheduled for December 2008 21 cm tomography coming

  19. 75% 21% 4% ? Cosmological data Cosmological Parameters Why these particular values? Nature of dark matter? Fundamental theory Nature of dark energy? Nature of early Universe?

  20. How did it all begin?

  21. Herman, Gamow & Alpher, 1940’s

  22. Arno Penzias & Robert Wilson 1965

  23. 100dpi Other people associated with MIT who worked on COBE: Chuck Bennett, Ed Cheng, Steve Meyer, Rai Weiss & Ned Wright

  24. ? (Graphics fromWMAP team)

  25. History (Figure from Wayne Hu) (Figure from WMAP team)

  26. History

  27. History CMB Foreground-cleaned WMAP map from MT, de Oliveira-Costa & Hamilton, astro-ph/0302496

  28. History Q: How see through this wall?

  29. History Q: How see through this wall? A: With gravitational waves!

  30. Cmbgg OmOl CMB + LSS (Figure from Matias Zaldarriaga)

  31. Guth 1981, PRD, 23, 347

  32. Guth 1981, PRD, 23, 347

  33. SN Ia+CMB+LSS constraints Yun Wang & MT, PRL 92, 241302

  34. tot Q, ns, , r, nt (Multi-field caveat) , w

  35. CMB polarization missions Dark Energy missions

  36. Why should you believe this?

  37. Boomzoom Guth & Kaiser 2005, Science

  38. Cmbgg OmOl How flat is space? closed flat open

  39. Cmbgg OmOl How flat is space?

  40. Cmbgg OmOl How flat is space? Somewhat.

  41. Cmbgg OmOl How flat is space? tot=1.003

  42. Cmbgg OmOl CMB + LSS

  43. Cmbgg OmOl CMB + LSS

  44. Cmbgg OmOl CMB + LSS

  45. Cmbgg OmOl CMB + LSS

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