Accueil/ expose
First cosmological results from the Planck satellite
jeudi 11 avril 2013

Loading the player...
Descriptif

Conférence de physique donnée par François Bouchet et organisée par le département de physique.

Sketched out in 1992, selected by ESA in 1996, launched in 2009, Planck will have delivered on March 21st its first full sky maps of the millimetric emission at 9 frequencies, as well as those which follow from them, and in particular Planck map of the anisotropies of the Cosmic Microwave Background (CMB). The later displays minuscule variations as a function of the observing direction of the temperature of the fossile radiation around its mean temperature of 2.725K. I will briefly describe how these high resolution maps with a precision of a few parts in a million have been obtained, from collection to analysis of the first 500 billion samples of our HFI instrument.


CMB anisotropies reveal the imprint of the primordial fluctuations which initiate the growth of the large scale structures of the Universe, as transformed by their evolution, in particular during the first 370 000 years, i.e. till the Universe became transparent and the forming of the image we record today. The statistical characteristics of these anisotropies allow constraining jointly the physics of the creation of the primordial fluctuations and that of their evolution. They teach us the possible value of the parameters of the models which we confront to data. I will describe Planck estimates of the density of the constituents of the Universe (usual matter, cold dark matter or CDM, dark energy...), and their implication in terms of derived quantities like the expansion rate or the spatial curvature. I will review what we learnt on the generation of the fluctuation, and will discuss extensions of the standard cosmological model, so called "Lambda-CDM", both in term of non minimal physical models — multi-field inflation for instance, or additional constituents - like cosmic strings or a fourth neutrino.

Finally, I will briefly describe other promising results on the matter distribution which is travelled through by the CMB image on its long 13.7 billion years trip towards us. I will mention in particular what we can learn on the dark matter distribution - which is detected through its distorting effet of the CMB image by gravitationnal lensing, or that of hot gaz, which is revealed by the spectral distortion it induces.

Voir aussi


  • Einstein aujourd’hui
    Claude Cohen-Tannoudji, Jean Dalibard, Alain Aspect, Michèle Leduc, Michel Le Bellac, François Bouchet, Eric Brunet, Thibault Damour, Olivier Darrigol, Philippe Grangier, Bernard Derrida, Franck Laloë, Jean-Paul Pocholle
  • Résultats cosmologiques de la mission Pl...
    François Bouchet
  • 14 minutes avec 14 scientifiques
    Alain Prochiantz, Serge Haroche, François Bouchet, Alain Berthoz, Clotilde Policar, Susan Solomon, Elena Pasquinelli, Rava Da Silveira, Françoise Combes, Gérard Berry, Stanislas Dehaene, Julia Lawall, René Frydman, Eléonore Stutzmann
  • Les sables mouvants
    Daniel Bonn
  • Développements actuels en spintronique
    Albert Fert
  • La physique au LHC (Large Hadron Collide...
    Jean Iliopoulos, Costas Bachas
  • La physique au LHC (Large Hadron Collide...
    Jean Iliopoulos, Costas Bachas
  • La physique au LHC (Large Hadron Collide...
    Jean Iliopoulos, Costas Bachas
  • La physique au LHC (Large Hadron Collide...
    Jean Iliopoulos, Costas Bachas
  • Des dynamos industrielles aux champs mag...
    Stéphan Fauve
  • La nanophotonique : éclats d’une lumièr...
    Henri Benisty
  • Les gaz ultra-froids : un monde quantiqu...
    Jean Dalibard
  • Joining Microelectronics and Microionic...
    Peter Fromherz
  • Allers et retours entre physique et biol...
    Yves Couder
  • La dynamo turbulente : résultats récent...
    Stéphan Fauve
  • Semiconductor Nanocrystals: Science and ...
    Moungi Bawendi
  • Deux siècles de découvertes sur la capil...
    Yves Pomeau
  • Quantum Shot Noise: From Schottky to Bel...
    Markus Buttiker
  • Les polaritons de cavité : des condensat...
    Jacqueline Bloch
  • Un nucléaire durable pour une énergie d’...
    Claude Guet
  • Premier bilan de la mission spatiale Cas...
    Pierre Drossart
  • Matériaux d’indice négatif : avec Alice ...
    Daniel Maystre
  • Les archives ouvertes
    Jean Zinn-Justin
  • La zététique, une éducation à l’autodéfe...
    Denis Caroti
  • Cell surface mechanics during tissue mor...
    Pierre-François Lenne
  • Modélisation de la dynamique non-linéair...
    Michel Benoit
  • Physics of Multicellularity
    Ray Goldstein
  • Nanovecteurs de médicaments et nanofiltr...
    Fabien Picaud
  • Le grand collisionneur d’hadrons
    Laurent Jean Tavian
  • Mécanique et vibro-acoustique du piano
    Xavier Boutillon
  • Un mécanisme quantique pour l’odorat ?...
    Luca Turin
  • Gérer la contrainte carbone, un jeu d'en...
    Jean-Marc Jancovici
  • The Complex Physics of Climate Change : ...
    Michael Ghil
  • Solid Helium : Supersolidity or Quantum ...
    John Beamish
  • Dynamique de la matière noire : simulati...
    Stéphane Colombi
  • Détection exaltée de molécules avec des ...
    Jérôme Wenger
  • Ettore Majorana : quand la disparition c...
    Etienne Klein
  • Évaluation de la qualité du violon : co...
    Claudia Fritz
  • Spectroscopy of Trapped Atomic Antihydro...
    Mike Hayden
  • La place des femmes au CNRS
    Pascale Bukhari
  • Sea level through geological time : impl...
    Kurt Lambeck
  • Vote-au-pluriel : expérimenter avec les...
    Jean-François Laslier
  • Des photons vrais ou faux jumeaux ?
    Émmanuel Rosencher
  • Prix des trois Physiciens 2012 : Matièr...
    Françoise Combes
  • Non-abelian statistics
    Victor Gurarie
  • La main à la pâte
    David Wilgenbus
  • Quantum Origin of the Universe - Lectur...
    Viatcheslav Mukhanov
  • Tests fondamentaux de physique quantiqu...
    Serge Haroche
  • Quantum Origin of the Universe - Lectur...
    Viatcheslav Mukhanov
  • How do fluids flow at the wall ?
    Patrick Tabeling
  • Coherent quantum phase slip ? Josephson ...
    Jaw-Shen Tsai
  • Nucleation and growth at the nanoscale ...
    Christoph Dellago
  • Search and Discovery of a Higgs-like bos...
    Daniel Fournier
  • Quantum information with nv centers in d...
    Patrice Bertet
  • Condensed matter via general relativity
    Eric D’Hoker
  • Geometry and Embryonic Patterning
    Eric Siggia
  • The maps inside your head how the brain ...
    Vijay Balasubramanian
  • Quantum optics with propagating microwav...
    Andreas Wallraff
  • Towards unification of spacetime and mat...
    Hikaru Kawai
  • Birds, spin and entropy a theoretical ph...
    Irene Giardina
  • Vitrimers
    Ludwik Leibler
  • Topological fluid mechanics From Gauss’ ...
    Renzo Ricca
  • Einstein's photon and bohr's atom revisi...
    Serge Haroche
  • Quantum finite non-equilibrium thermodyn...
    Vlatko Vedral
  • Hamiltonian Theory of Fractional Chern B...
    Ramamurti Shankar
  • Emerging and broken symmetries in turbul...
    Gregory Falkovich
  • Inverse cascades and condensates
    Gregory Falkovich
  • How masses have been generated in the ea...
    Jean Iliopoulos
  • Casimir energies and forces an accelerat...
    Kimball Milton
  • How atoms and charges move in crystals ...
    Thomas Elsaesser
  • Science in society issues the example o...
    Catherine Oualian, Camille Breton
  • The physical genome
    Rob Phillips
  • Tracing the growth of massive black hole...
    Marta Volonteri
  • When the environment drives the system q...
    Gert-Ludwig Ingold
  • Statistical physics of compressed sensin...
    Marc Mézard
  • Some new results on the history of ancie...
    Lucio Russo
  • Mesoscopic superconductivity what do we ...
    Hugues Pothier
  • Polymers, Message Passing, and London Un...
    Michael Wong
  • Quantum memories with cold atomic ensemb...
    Elisabeth Giacobino
  • Analysis of fluid systems by optimizatio...
    Peter Schmid
  • Carbon chelmistry and carbon balance in ...
    José Cernicharo
  • Imaging magnetic fields at the nanoscal...
    Vincent Jacques
  • Black hole accretion and cosmic evolutio...
    Sera Markoff
  • Physics of Cancer - The role of angiogen...
    Heiko Rieger
  • Quantum limit of heat flow across an ele...
    Frédéric Pierre
  • Thermodynamics of strongly correlates ga...
    Frédéric Chevy
  • Fast and slow quenches across second ord...
    Leticia Cugliandolo
  • Conformal symmetry of critical fluctuati...
    Vyacheslav Slava Rychkov
  • La physique surprise - Renouveler les ex...
    Jean-Michel Courty, Edouard Kierlik
  • Economic and financial crises, a physici...
    Jean-Philippe Bouchaud
  • Why do we see it that way ?
    William Bialek
  • A few applications of vector bundles in ...
    Benoît Douçot
  • A few applications of vector bundles in ...
    Benoît Douçot
  • Statistical physics of neural assemblie...
    Rémi Monasson
  • Auditory perception of temporal modulati...
    Christian Lorenzi
  • Bacteria powered micro-devices
    Roberto Di Leonardo
  • Mesures de précision et tests fondamenta...
    François Biraben
  • The Ultimate Limit of Optical Fibers to ...
    René-Jean Essiambre
  • Hot topic in nanomedicine : how to overc...
    Patrick Couvreur
  • Attosecond lasers : principles, metrolog...
    Fabien Quéré
  • Imaging of extrasolar planets : challeng...
    Anne-Marie Lagrange
  • 2015 Planck full mission result
    Jean-Loup Puget
  • Nonequilibrium structures and glassy dyn...
    Ludovic Berthier
  • Soft matter and cooking : a pedagogical ...
    Patrick Charbonneau, Justine De Valicourt
  • From water molecules to atmospheric circ...
    Valérie Masson-Delmotte
  • Backaction of quantum measurement in sup...
    Benjamin Huard
  • From fundamental physics to the origins ...
    Marco Saitta
  • LEDs for lighting - the physical and mat...
    Claude Weisbuch
  • Nanoassembling for soft matter : fluidic...
    Alessandro Siria
  • Clustering of networks : From phase tran...
    Lenka Zdeborova
  • Dynamic nuclear polarization
    Geoffrey Bodenhausen
  • Progress towards Fusion Energy at ITER
    David J. Campbell
  • The new role of time and events in compu...
    Gérard Berry
  • Modelling the physics of galaxy formatio...
    Julien Devriendt
  • What keeps the magnetic field of the Ear...
    Peter Davidson
  • Short wavelength radiation
    Catalin Miron
  • From the basics of spintronics to some r...
    Vincent Cros
  • Topological Mechanical Metamaterials
    Vincenzo Vitelli
  • The universe before the big bang
    Valery Rubakov
  • How to pack and unpack spheres
    Matthieu Wyart
  • Black holes reject their food
    Françoise Combes
  • Electron quantum optics in ballistic con...
    Gwendal Feve
  • Electron quantum optics in ballistic con...
    Gwendal Feve
  • Cavity quantum electrodynamics with carb...
    Takis Kontos
  • Controlling light propagation in comple...
    Sylvain Gigan
  • SubTHz photons in the universe and in m...
    Philippe Goy
  • Climat : y voir clair pour agir
    Sébastien Balibar
  • Learning multiscale invariants from big ...
    Stéphane Mallat
  • Diversity of immune receptor repertoire...
    Aleksandra Walczak
  • Biomicrofluidics and Mesobiotechnologie...
    Yong Chen
  • The building of the future: challenges a...
    Didier Roux
  • The Rosetta Mission
    Jean-Pierre Bibring
  • Non-linear responses, soft-modes and th...
    Giulio Biroli
  • Ergodicity : an historical perspective. ...
    Giovanni Gallavotti
  • Is the forced two-dimensional model “goo...
    Kiori Obuse
  • What is the difference between a graphen...
    Adrian Bachtold
  • The birth of gravitational astronomy
    Patrice Hello
  • Making 'Living Matter' from the bottom u...
    Ramin Golestanian
  • The birth of gravitational astronomy
    Patrice Hello
  • The H boson and Beyond at the LHC
    Yves Sirois
  • Hybrid organic perovskites : a new semic...
    Emmanuelle Deleporte
  • Exploring the outer solar system with st...
    Bruno Sicardy
  • Physics and Sport
    Christophe Clanet
  • Charge storage in nanoporous carbons: Th...
    Benjamin Rotenberg
  • General Relativity, Gravitational Waves ...
    Thibault Damour
  • Multicolor and multicontrast nonlinear m...
    Emmanuel Beaurepaire
  • Statistical-physics inspired modelling o...
    Martin Weigt
  • Materials advances for better Li(Na)-io...
    Jean-Marie Tarascon
  • Cosmic connections : from cosmic rays t...
    Alexander Kusenko
  • Analyse technique et économique du systè...
    Alain Burtin
  • Gravitational Waves : Theory, Sources an...
    Alexandre Le Tiec
  • Gravitational Waves : Theory, Sources an...
    Alexandre Le Tiec
  • Atomic force microscopy provides new vis...
    Franz J. Giessibl
  • Understanding old masters’ painting tech...
    Laurence Viguerie de
  • The hunt for a quantum algorithm for Gra...
    Cristopher Moore
  • Quantum simulations : from condensed mat...
    Juan Ignacio Cirac
  • The Single Molecule Game
    Vincent Croquette
  • Images, robots and humans
    Jocelyne Troccaz
  • Earthquakes ! In the laboratory...
    Alexandre Schubnel
  • Shortcuts to adiabaticity
    David Guéry-Odelin
  • On Effective Field Theory
    Leonardo Senatore
  • Searching for Dark Matter
    Marco Cirelli
  • Electron and lattice dynamics in solids ...
    Thomas Elsaesser
  • Pluto revealed by the New Horizons missi...
    François Forget
  • Probing and controlling ultracold quantu...
    Immanuel Bloch
  • Nanotechnology for single-molecule and s...
    Cees Dekker
  • Undecidability in physics… and its conse...
    David Pérez-García
  • Collective effects in transport systems...
    Cécile Appert-Rolland
  • The Nobel prize in Physics 2016: Topolog...
    Jean-Noël Fuchs
  • The ocean : A turbulent control system f...
    Sabrina Speich
  • Nonlinear fluctuating hydrodynamics and ...
    Herbert Spohn
  • The physics of exceptional points
    Stefan Rotter
  • Modeling solids and its impact on scienc...
    Marvin L. Cohen
  • What can we do with genes in medicine ? ...
    Alain Fischer
  • Hydrodynamics and quantum anomalies
    Dam Thanh Son
  • Light Control in complex media : from im...
    Sylvain Gigan
  • Light Control in complex media : from im...
    Sylvain Gigan
  • From quantum measurement to quantum simu...
    Michel Brune
  • De la topologie aux machines moléculaire...
    Jean-Pierre Sauvage
  • From glass to vitrimers : a story of exc...
    Ludwik Leibler
  • Tests of quantum mechanics and gravitati...
    Mark Kasevich
  • Stories of grains in fluids
    Yoël Forterre
  • Fluids of light in semiconductor lattice...
    Jacqueline Bloch
  • The direct observation of gravitational ...
    Bruce Allen
  • Towards a Predictive Theory of Strongly-...
    Gabriel Kotliar
  • Saving the Quantum : How to make friend...
    Sabrina Maniscalco
  • Nanopores in 2D Materials
    Alexandra Radenovic
  • Towards a renormalization group for netw...
    William Bialek
  • Long-range propagation of ocean swell
    William Roy Young
  • Fast magnetic reconnection in space and ...
    Amitava Bhattacharjee
  • Dynamical fluctuations far from equilibr...
    Kirone Mallick
  • Graphene in the (Terahertz) Microwave
    Mischa Bonn
  • An introduction to quantum cryptography...
    Pierre Rouchon
  • A tale of turbulence and gravity
    Edith Falgarone
  • Quand les ondes dessinent des motifs géo...
    Laure Saint-Raymond
  • Nano-optics : an enabling tool for basi...
    Romain Quidant
  • From “cognitive-type” neural microcircui...
    Xiao Jing Wang
  • Quantum Internet : Vision or Fiction ?
    Gerhard Rempe
  • Fast irreversible Markov chains and thei...
    Werner Krauth
  • Quantum Inflation in the Planck Era and ...
    J. Richard Bond
  • Physics approaches of biological membran...
    Patricia Bassereau
  • When random walkers help solving intrigu...
    Emmanuel Trizac
  • Extracting Order from Disorder : Periodi...
    Rich Kerswell
  • Statistics and Dynamics of Soft Wetting
    Bruno Andreotti
  • A statistical physics perspective on som...
    Vincent Hakim
  • Quantum optomechanics with superfluid he...
    Jack Harris
  • Neuromorphic computing : overview and ch...
    Julie Grollier
  • Slip of polymeric fluids
    Frédéric Restagno
  • Dynamics of mixed turbulent / stably-st...
    Michael Le Bars
  • Pour en savoir plus sur l'aération et l...
    François Pétrélis, Jean-Michel Courty, Benoît Semin, Pascal Morenton, Florence Elias, Bertrand Maury
  • Pratique de la mesure du CO2 dans les ét...
    François Pétrélis, Jean-Michel Courty, Benoît Semin, Pascal Morenton, Florence Elias, Bertrand Maury
  • The spin glass cornucopia revisited
    Marc Mézard
  • Twenty years of mesoscopic physics at EN...
    Bernard Plaçais
  • Scale invariance for quantum fluids : so...
    Jean Dalibard
  • Ground based gravitational-wave astronom...
    Matteo Barsuglia
  • How a physical system can be turned int...
    Florian Marquardt
  • Probing the first galaxies and cosmic re...
    Hakim Atek
  • Propagation and stabilization in time-va...
    Emmanuel Fort
  • How personalised is our immune repertoir...
    Aleksandra Walczak
  • The Swampland Program in Quantum Gravit...
  • SARS-CoV-2: pathologies, mesure du risqu...
    Bruno Andreotti
  • Quantum many-body physics with ultracol...
    Frédéric Chevy
  • Quantum Science with Rydberg Atoms
    Serge Haroche
  • On the nature of the glass transition
    Matthieu Wyart
  • Quantum Chaos and the Foundations of Sta...
    Mark Srednicki
  • Cell iophysics : phase diagrams, phase p...
    Cécile Sykes
Auteur(s)
François Bouchet
Institut d’astrophysique de Paris
Directeur de recherche CNRS

Plus sur cet auteur
Voir la fiche de l'auteur

Cursus :

François Bouchet est directeur de recherches à l'Institut d'astrophysique de Paris

François Bouchet travaille sur la cosmologie : structures à grande échelle, dynamique et statistique des systèmes auto-gravitants, des cordes cosmiques, anisotropies du fond diffus cosmologique et techniques d'analyse de données correspondantes, formation et évolution des galaxies et simulations numériques.

Responsable scientifique de Planck-HFI, il est l'un des trois fondateurs du projet Planck. Il est responsable du centre de traitement des données de l'instrument HFI et son équipe est au coeur de l'étude de l'univers primordial d'après la carte du rayonnement fossile.

Parcours

- 1983 : thèse de 3e cycle en physique théorique, université Paris-VI,  intitulée "Croissance des fluctuations primordiales et distribution des galaxies"
- 1984-1985 : chargé de recherches au centre de physique théorique de l'Ecole polytechnique et chercheur associé à l'Institut d'astrophysique de Paris
- 1986-1988 : mis à disposition de l'université de Californie en tant qu'astronome visiteur du département d'astronomie de Berkeley
- 1992 : habilitation à diriger des recherches, intitulée "les grandes structures de l'univers"
- Depuis 1993 : directeur de recherches du CNRS

Titres

En 1993, Prix de la Société française des spécialistes en astronomie

Cliquer ICI pour fermer
Annexes
Téléchargements :
   - Télécharger la vidéo
   - Télécharger l'audio (mp3)

Dernière mise à jour : 15/07/2013