Séminaires

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18 février 2020

M4AST : On-line tool for spectral modeling of asteroids

Le 29 janvier 2016 De 10h30 à 12h00 Mirel BIRLAN IMCCE, Observatoire de Paris M4AST (Modelling for asteroids) is a tool devoted to model and interpret spectra data in the visible and near-infrared of asteroids. It is composed by an asteroid spectral database and a set of...

18 février 2020

First glimpse into Gaia’s astrometry – a progress report

Le 11 décembre 2015 De 10h30 à 12h00 Ulrich BASTIAN ARI, Heidelberg According to the official plan, the first astrometric data releases from Gaia are expected by mid 2016 (positions only) and mid 2017 (incl. parallaxes and proper motions). This is the time needed to collect...

18 février 2020

Planck et les grandes structures

Le 27 novembre 2015 De 10h30 à 12h00 Hervé DOLE Institut d'Astrophysique Spatiale, Orsay Le satellite Planck, pierre angulaire de l’ESA dédiée à la cosmologie et lancé en 2009, a observé la totalité du ciel pendant près de 2 ans et demi, et mesuré le fond diffus...

18 février 2020

Magnetism in massive stars

Le 13 novembre 2015 De 10h30 à 12h00 Coralie NEINER Observatoire de Paris I will present the latest observational results obtained on the magnetic fields of massive stars thanks mainly to large spectropolarimetric programs. I will discuss the origin of these magnetic fields,...

18 février 2020

Galactic Archaeology to its limits

Le 6 novembre 2015 De 10h30 à 12h00 Else STARKENBURG AIP Potsdam Resolved stellar spectroscopy presents us with "archaeological" evidence about chemical enrichment processes back to the earliest times. In this talk I will review the very early (chemical) evolution of the...

18 février 2020

The Optical-Infrared Extinction Curve and its Variation in the Galaxy

Le 30 octobre 2015De 10h30 à 12h00 Eddie SCHLAFLY MPIA Heidelberg The dust extinction curve is an important diagnostic of the physics of the interstellar medium, as well as a critical element to many observational programs. Detailed studies of the extinction curve and...

18 février 2020

Testing classical and quantum electrodynamics with intense laser fields

Le 23 octobre 2015De 10h30 à 12h00 Antonino Di Piazza Max-Planck-Institut fur Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany Classical electrodynamics (CED) and quantum electrodynamics (QED) are well established physical theories and their predictions have been conrmed...

18 février 2020

Binary stars – an interferometric view

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,...