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Le 5 juin 2018 De 12h45 à 13h45 Paolo Bianchini (McMaster University/ObAS)A three-dimensional view of the internal rotation of globular clustersGlobular clusters (GCs) are old stellar systems for long considered spherical and non-rotating. However, in recent years, an...
Le 1 juin 2018 De 10h30 à 12h00 Wim de Boer Karlsruhe Institute of Technology The so-called Fermi-excess in the diffuse Galactic gamma-ray sky is observed as a shift of the maximum in the E^2 weighted gamma-ray spectrum from 0.7 GeV to around 2 GeV. Such a shift can be...
Le 29 mai 2018 De 12h45 à 13h45 François-Xavier Pineau (ObAS) Results of probabilistic cross-matches taking into account photometric parameters. After a brief introduction to the statistical basis and practical limitations of multi-catalogue positional cross-matches, we...
Le 25 mai 2018 De 10h30 à 12h00 Maria Bergemann MPIA Heidelberg The evolution of our Galaxy has been a subject of extensive studies over the past decades. A qualitative understanding of its major building blocks is now in place. Yet, the detailed history of the Milky Way...
Le 18 mai 2018 De 10h30 à 12h00 Nikolay Kacharov MPIA Heidelberg In this talk I will introduce some of the open questions in the field of globular clusters and nuclear star clusters. As one part of the colloquium, I will talk about the multiple populations phenomenon in...
Le 15 mai 2018 De 12h45 à 13h45 Kim Venn (University of Victoria) Analyses of Metal-Poor stars in the CFHT Pristine SurveyThe Pristine Survey is a narrow-band photometric survey focused on the metallicity-sensitive Ca H & K lines and conducted in the...
Le 4 mai 2018 De 11h15 à 12h30 Ortwin Gerhard MPE Garching The central few kpc of our Galaxy, the Milky Way, are dominated by the gravitational field of the Galactic bar. This talk describes dynamical models of the bar and box/peanut bulge, and what we have learnt from...
Le 4 mai 2018 De 10h30 à 11h15 Magda Arnaboldi ESO Garching I will motivate the use of Planetary Nebulae (PNs) as distance indicators, tracers of stellar populations and kinematics in cold/hot stellar galactic systems. I will then discuss the PN visibility lifetimes and...
Le 27 avril 2018 De 10h30 à 12h00 Vincent Mazet ICube Nous présenterons dans cet exposé les méthodes développées ces dernières années dans l'équipe IPSEO (ex PASEO) de Christophe Collet du laboratoire ICube. Il s'agit de susciter des discussions pouvant aboutir à une...
Le 24 avril 2018 De 12h45 à 13h45 Anu Kundu (ObAS) Understanding pulsar emission considering a rotating off-centred dipole Abstract: Past few decades have shown an exponential rise in the importance of studying compact objects possessing inherent extreme...