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Le 27 février 2018 De 12h45 à 13h45 Andrea Rojas (ObAS) "Modeling optical and UV polarization of AGNs" The structure and geometry of the innermost regions of AGN are still unknown. Several methods have been used to infer the size of the regions surrounding the...
Le 23 février 2018 De 10h30 à 12h00 Ryan Leaman MPIA, Heidelberg Determining the ages of stars in our Milky Way, the nearby Andromeda galaxy and their satellite dwarf galaxies, gives us a window into how efficiently these objects assembled their baryonic mass. These...
Le 16 février 2018 De 10h30 à 12h00 Pratika Dayal RUG, Groningen Galaxy formation in the first billion years mark a time of great upheaval in the history of the Universe: as the first sources of light, these galaxies ended the 'cosmic dark ages' and produced the first...
Le 16 février 2018 De 09h15 à 10h00 Nous avons de plus en plus d'outils à notre disposition pour stocker et partager nos données (Dropbox, Googledrive...), réaliser des sondages (Studs, Doodle, Foodle...) ainsi que pour organiser des visio/webconférences (Skype, Google Hang...
Le 13 février 2018 De 12h45 à 13h45 Sebastien Derriere (ObAS) Don't fear the media : making press releases and dealing with journalists Fichiers : AstroLunch2018_SD_01.pdf (1.5...
Le 9 février 2018 De 10h30 à 12h00 Yelena Stein Observatoire astronomique de Strasbourg The main topic of this talk are magnetic fields and the transport processes of cosmic ray particles. This is investigated in the three edge-on galaxies NGC 4666, NGC 4013 and NGC 4217...
Le 2 février 2018 De 10h30 à 12h00 Alessandra Mastrobuono-Battisti MPIA Globular clusters (GCs), for long considered single stellar populations, recently revealed their real complex nature. Most of them, if not all, indeed host multiple stellar populations and few very...
Le 26 janvier 2018 De 10h30 à 12h00 Carlo Rizzo Université Toulouse III Paul Sabatier Laboratoire National des Champs Magnétiques Intenses CNRS UPR 3228 I will first give the description of a quantum vacuum in the framework of non linear electrodynamics. I will further...
Le 19 janvier 2018 De 10h30 à 12h00 Pierre-Olivier Lagage CEA The last twenty years have witnessed an exceptionally fast development in the field of the extra solar planets. The known exoplanets, almost 4000 to date, show how diverse the planets in our galaxy can be. While the...
Le 12 janvier 2018 De 10h30 à 12h00 Laure Ciesla CEA Galaxies follow a bimodality in both color and morphology. They are seperated in star-forming and passive galaxies. Although observational evidences suggest that the mass and the environnement of a galaxy play a key role...