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Le 27 mars 2014 Pierre BrunCEA Saclay, Irfu L'astronomie gamma au sol est entrée dans une phase mûre avec le succès des réseaux de télescopes Tcherenkov au sol HESS, MAGIC et VERITAS. Les grandes sensibilités de ces instruments permettent à présent d'utiliser l'univers à...
Le 21 mars 2014 J.G. Kirk Max-Planck-Institut für Kernphysik, Heidelberg, Germany Pulsar winds are made up of low density, magnetized, relativistic plasmas. When they impact the interstellar medium, they form a shock front which accelerates the particles responsible for Pulsar...
Le 14 mars 2014 De 10h30 à 12h00 Martin FEIX Technion - HaifaPeculiar motion introduces systematic variations in the observed luminosity distribution of galaxies. This allows one to measure cosmological bulk flows and to reconstruct the peculiar velocity field from large...
Le 7 mars 2014 De 10h30 à 12h00 Ylva SCHUBERTH BonnGiant elliptical galaxies are surrounded by very populous Globular Cluster (GC) systems. With the advent of 8-m Class telescopes, it has become possible to obtain spectra of GCs at Virgo and Fornax Cluster distances,...
Le 28 février 2014 De 10h30 à 12h00 Jean-Philippe BRUNETON LUTH, Observatoire de ParisStandard cosmology is based on the Cosmological Principle which states that the Universe is homogeneous and isotropic. In order to go beyond that approximation, one shall take into account...
Le 21 février 2014 De 10h30 à 12h00 Aurélien HEES JPL, CaltechI will briefly review the principles upon which General Relativity (GR) is built. I will also review the main effects produced by GR in the Solar System. Motivations for considering alternative theories of...
Le 14 février 2014 De 10h30 à 12h00 Georges KORDOPATIS University of Cambridge, UK Galactic archaeology aims to unravel the sequence of events that have taken place during the history of the Milky Way, in order to understand how our Galaxy evolved. The investigation is done...
Le 7 février 2014 De 10h30 à 12h00 Garry ANGUS Vrije Universiteit Brussel, Belgique The DiskMass survey of low inclination (close to face-on) disk galaxies invokes the simultaneous measurement of stellar vertical (out of the disk plane) velocity dispersions and disk rotation...
Le 31 janvier 2014 De 10h30 à 12h00 Giacomo MONARI Kapteyn Instituut, Rijksuniversiteit Groningen The study of kinematic groups of stars and streaming motions in the Solar Neighborhood has a long tradition. The interest on the subject has been amplified in modern times after...
Le 24 janvier 2014 De 10h30 à 12h00 Mark ALLEN & Pierre FERNIQUE Observatoire Astronomique de Strasbourg Recent developments in Aladin have opened up new ways of viewing and manipulating image surveys and large catalogues. A hierarchical multi-resolution representation of...