Astrophysics and Cosmology

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Jean-François COLONNA

jean-francois.colonna@polytechnique.edu

CMAP (Centre de Mathématiques APpliquées) UMR CNRS 7641, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France

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(CMAP28 WWW site: this page was created on 03/15/2000 and last updated on 12/22/2017 09:41:53 -CET-)

The Universe and the Multiverse [ l'Univers et le Multivers]. |
Quantum Gravity and Super-Strings [ Gravitation Quantique et Super-Cordes]. |
The Sun [ le Soleil]. |
Space Curvature [ Courbure de l'Espace]. |

- The Universe and the Multiverse [
*l'Univers et le Multivers*]: - Quantum Gravity and Super-Strings [
*Gravitation Quantique et Super-Cordes*]:
[see also the Newtonian Gravity]
- The Sun [
*le Soleil*]: - Space Curvature [
*Courbure de l'Espace*]:

Artistic view of the Cosmic Web (nodes, galaxy clusters, filaments,... including 637.312 galaxies) obtained by means of a non deterministic fractal process. |

Artistic view of a fractal Multiverse. |
Universe or Multiverse -The fractal Universe-?. |

Kasner billiard: Time-dependent billiard (from negative curvatures to positive curvature) with one particle. |
Tridimensional display of the inflationary Universe. |

Artistic view of the Big Bang. |
Artistic view of the Big Bang. |

Where is the Universe?. |
Where is the Multiverse?. |
The Universe at the heart of a Calabi-Yau manifold. |

From low to high galaxy density in the local universe (the depth is displayed by means of the luminance). |

Causal set obtained by means of an homogeneous random meshing of a cube. |

Tridimensional representation of a hexadimensional Calabi-Yau manifold. |

The random walk of photons escaping the Sun. |
The random walk of photons escaping the Sun. |

Gravitation and space-time curvature. |
Gravitation and space-time curvature. |

A one sheet hyperboloid of revolution -negative curvature-. |
A plane -zero curvature-. |
A sphere -positive curvature-. |

Copyright (c) CMAP (Centre de Mathématiques APpliquées) UMR CNRS 7641 / Ecole Polytechnique, 2000-2017.