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Nobel Prize in Physics 2011 PowerPoint Presentation
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Nobel Prize in Physics 2011

Nobel Prize in Physics 2011

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Nobel Prize in Physics 2011

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  1. Nobel Prize in Physics 2011 Saul Perlmutter Supernova Cosmology Project Berkeley, USA “for the discovery of the accelerating expansion of the Universe through observations of distant supernovae” Brian P. Schmidt High-z Supernova Search Team Weston Creek, Australia SN 1006 : Remnant of Supernova Type Ia Adam G. Riess High-z Supernova Search Team Baltimore, USA David Blaschke, IFT Seminar, Wroclaw University, 9.12.2011

  2. Cosmic Dynamics

  3. Standard Candles ... The Cosmic Distance Ladder • Cepheids (... 29 Mpc) (period - luminosity) • Tully-Fisher relation (... 50 Mpc) (galaxy rotation - luminosity) • Supernovae Ia ( > 1000 Mpc) (unique lightcurve peak luminosity) Luminosity distance dL: (L – absolute; l - apparent) 1 Mpc = 3.26 million ly = 3.085 1022 m

  4. The Strategy

  5. Supernovae Typ Ia as standard candles White dwarf star accretes mass from a companion star ... The picture of a galaxy At 1.4 M_solar the white dwarf explodes in a supernova type Ia The same galaxy, three weeks later. Supernova 1995ar (red arrow) shines as bright as a galaxy Type Ia ? The lightcurve decides!

  6. Supernovae Typ Ia as standard candles The picture of a galaxy The same galaxy, three weeks later. Supernova 1995ar (red arrow) shines as bright as a galaxy

  7. Analysis Method “Supernova on Demand” - sample thousands of Galaxies during new moon - observe same patches 3 weeks later: find dozens of SNe - for close-to-peak brightness SNe start follow-up observations On world's largest telescopes

  8. 27 % Matter (4% Atoms, 23% Dark), 73% Vacuum (Dark) Energy The Result:

  9. Independent Confirmation: Cosmic Microwave Background (CMB) Fluctuations

  10. Independent Confirmation: Cosmic Microwave Background (CMB) Fluctuations

  11. Independent Confirmation: Cosmic Microwave Background (CMB) Fluctuations

  12. Summary of Results