planck: understanding the big bang
DESCRIPTION
ESA Space Science Talks March 2009. George Efstathiou: Planck: Understanding the Big Bang. Observing at microwave wavelengths, ESA's Planck observatory is the third space mission of its kind. It will measure tiny fluctuations in the CMB with unprecedented accuracy, providing the sharpest picture ever of the young Universe — when it was only 380 000 years old — and zeroing-in on theories that describe its birth and evolution.TRANSCRIPT
Planck: Understanding the Big Bang
George Efstathiou Kavli Institute for Cosmology, Cambridge, UKSchloss Braunshardt, Germany19/3/2009
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
Planck Units
Planck: Understanding the Big Bang
George Efstathiou 19/3/2009
1. Why is the Universe so big?
2. Why is the Universe so old?
3. Why is the entropy so big?
4. Why is the entropy so small?
5. Why is the Universe so uniform and isotropic?
6. Where did the structure – stars, galaxies, clusters of galaxies...come from?
7. What happened at the Big Bang?
8. Can we probe physics before the Big Bang?
9. What is the fate of the Universe?
10. .............................................................
Planck: Understanding the Big Bang
SOME 'BIG' COSMOLOGICAL QUESTIONS :
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
George Efstathiou 19/3/2009
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
Wilkinson Microwave Anisotropy Probe (WMAP)
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
Wilkinson Microwave Anisotropy Probe (WMAP)
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
p = -
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
S-dimensional assisted inflation assisted brane inflationanomoly-induced inflationassisted inflationassisted chaotic inflationboundary inflationbrane inflationbrane-assisted inflationbrane gas inflationbrane-antibrane inflationbraneworld inflationBrans-Dicke chaotic inflationBrans-Dicke inflationbulky brane inflationchaotic inflationchaotic hybrid inflationchaotic new inflationD-brane inflationD-term inflationdilaton-driven inflationdilaton-driven brane inflationdouble inflationdouble D-term inflation
dual inflation dynamical inflationdynamical SUSY inflationeternal inflationextended inflationextended open inflationextended warm inflationextra dimensional inflationF-term inflationF-term hybrid inflationfalse-vacuum inflationfalse-vacuum chaotic inflationfast-roll inflationfirst-order inflationgauged inflationHagedorn inflationhigher-curvature inflationhybrid inflationhyperextended inflationinduced gravity inflationintermediate inflationinverted hybrid inflationisocurvature inflation......................
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
Polarization E and B modes
Gradient: E polarization Curl: B polarization
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
CURRENT OBSERVATIONS PLANCK FORECAST
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E
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
GRAVITATIONAL WAVES THEORETICAL MODEL
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
GRAVITATIONAL WAVES NOMINAL MISSION: 2 SKY SURVEYS
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
GRAVITATIONAL WAVES NOMINAL MISSION: 4 SKY SURVEYS
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
GRAVITATIONAL WAVES THEORETICAL MODEL
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
ALIGNMENTS?
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
ASYMMETRY?
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
COLD SPOT?
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
1. Brane-worlds – signatures of higher dimensions
2. Pre-big bang signatures
3. Cosmic defects, cosmic superstrings
4. Non-Gaussianity
5. Evidence for warped geometry
6. Isocurvature perturbations
7. Deviations from Einstein gravity
8. Neutrino masses
9. Interacting dark matter
10...................................
Planck: Understanding the Big Bang
BEYOND THE 'STANDARD' BIG BANG::
George Efstathiou 19/3/2009
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
George Efstathiou 19/3/2009
Planck: Understanding the Big Bang
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