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Le 16 octobre 2015 De 10h30 à 12h00 Henri BOFFIN ESO, Paranal Most stars are born and live in binary systems, and will often interact in one way or another. The study of binary stars is therefore critical to apprehend many of the most interesting classes of stars. Moreover,...
Le 9 octobre 2015 De 10h30 à 12h00 Eline TOLSTOY Kapteyn Astronomical Institute, Groningen I will talk about how resolved stellar populations in the nearby Local Group dwarf galaxies have been used to study the detailed chemical, kinematic and star formation history of...
Le 2 octobre 2015 De 10h30 à 12h00 Céline BOEHM Durham University & LAPTH Annecy La nature de la matière noire reste mystérieuse malgré les nombreuses expériences de détection directe et indirecte. Je montrerai comment les catalogues de galaxies peuvent aider à...
Le 25 septembre 2015 De 10h30 à 12h00 Pavel KROUPA University of Bonn The stellar initial mass function (IMF) is usually assumed to be a probability density distribution function. Recent data appear to question this interpretation though, and I will discuss alternative...
Le 11 septembre 2015 De 10h30 à 12h00 Simona MEI Observatoire de Paris We will present recent results on the evolution of very massive galaxies in the field and in dense environments (e.g. galaxy clusters), using recent data from the HST/CANDELS and COSMOS surveys. We will...
Le 7 juillet 2015 De 10h30 à 12h00 Klemens BÖHM Karlsruhe Institute of Technology Many scientific databases nowadays are publicly available for querying and advanced data analytics. One prominent example is the Sloan Digital Sky Survey (SDSS) SkyServer, which offers data...
Le 26 juin 2015 De 10h30 à 12h00 Nicolas BOULANGER Université de Mons We intend to give a brief introduction to the key issues in higher-spin gravity, a theoretical model that generalises gravity to include an infinite tower of higher-spin gauge fields. The main reference...
Le 25 juin 2015 De 12h30 à 13h30 Geraint LEWIS University of Sydney Is the universe fine-tuned for life? And if it is, what does this mean? I’ll summarize some of the key parts of a book that I am completing on this topic, showing that it with a little change to the laws...
Le 19 juin 2015 De 10h30 à 12h00 Jonathan CHARDIN IoA, Cambridge I will present cosmological radiative transfer simulations of Hydrogen reionization calibrated with a range of measurements of the Lyα opacity from QSO absorption spectra. I will show that the Lyα opacity is...
Le 12 juin 2015 De 10h30 à 12h00 Martin FEIX Technion & IAP Spatial variations in the distribution of galaxy luminosities, estimated from redshifts as distance proxies, are correlated with the peculiar velocity field. Comparing these variations with the peculiar...