APC - Université Paris Diderot - CNRS

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Presentation transcript:

APC - Université Paris Diderot - CNRS Looking back in time Cyrille Rosset APC - Université Paris Diderot - CNRS

Launch of Planck - 14 May 2009

History of the Universe Observer NASA/WMAP Science Team

Observations Expansion of the Universe Velocity Hubble, 1929 Distance km/s 1000 Velocity 500 Hubble, 1929 106 1 106 2 x106 2 x106 2 Mpc pc pc pc Distance

Observations Expansion of the Universe Hubble Satellite Freedman, 2001

Observations Abundance of light elements (H, He)

Observations Cosmic Microwave Background Predicted in 1948 Observed in 1964 by Penzias and Wilson (COBE/DMR homepage)

Dark matter

Gravitational lensing

Content of the Universe Dark matter 25% Hot gas 4% Stars and planets 0.5% Neutrinos 0,5% Light 0,05% Dark energy 70%

Planck 1.5 m off-axis Gregorian telescope 2 instruments: LFI (20K) HFI (0.1K) Angular resolution : 30’ to 5’ 650 M€, 600 scientists, 29 laboratories, 14 countries (Europe, USA, Canada)

CMB and cosmology results in April 2013 !