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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...
Le 17 janvier 2014 Makoto Takamoto Max-Planck-Institut für Kernphysik, Heidelberg In this presentation, I will talk about my recent results of the evolution of a current sheet in a Poynting dominated plasma. We model the relativistic current sheet with cold background plasma...
Le 10 janvier 2014 De 10h30 à 11h30 Observatoire Astronomique - Grande Coupole Giovanni MANFREDI Institut de Physique et Chimie de Matériaux de Strasbourg (IPCMS) Cosmological simulations should in principle adopt a four-dimensional (4D) space-time to model the evolution of...
Le 20 décembre 2013 Andreas Eckart Universität zu Köln A fast moving infrared excess source (G2) which is widely interpreted as a core-less gas and dust cloud approaches Sagittarius~A* (SgrA*) on a presumably elliptical orbit. VLT Ks-band and Keck K'-band data result in...