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18 février 2020

The Crab pulsar and its nebula: Surprises in gamma-rays

Le 10 avril 2015 De 10h30 à 12h00 Rolf Buehler DESY Zeuthen   The Crab nebula and its pulsar (referred to together as “Crab”) have historically played a central role in astrophysics. True to their legacy, several unique discoveries have been made recently. The Crab was...

18 février 2020

Diffuse interstellar bands in the Galaxy and beyond

Le 27 mars 2015 De 10h30 à 12h00 Ana MONREAL-IBERO Observatoire de Paris  Diffuse Interstellar Bands (DIBs) are non-stellar weak absorption features found in the spectra of stars viewed trough one or several clouds of interstellar medium (ISM). Identified for the first time...

18 février 2020

Big Data, The Cannon & The Bulge

Le 20 mars 2015 De 14h00 à 15h00 Melissa NESS MPIA, Heidelberg  I will present The Cannon, a method that uses a model built directly from the spectra of only 550 stars, to determine stellar parameters (of Teff, log g, [Fe/H] and [alpha/Fe]) for 150,000 stars in the APOGEE...

18 février 2020

Shedding light on the dark side of our Universe

Le 13 mars 2015 De 10h30 à 12h00 Ippocratis SALTAS Center of Astronomy and Astrophysics, University of Lisbon, PortugalThe main topic of this talk will be the challenges one faces when trying to explain the observed late-time acceleration of our Universe both from a theoretical...

18 février 2020

The MESSIER satellite: unveiling galaxy formation

Le 16 février 2015 De 14h00 à 15h00 David VALLS-GABAUD LERMA, Obs. Paris The MESSIER satellite has been designed to explore the extremely low surface brightness universe at UV and optical wavelengths. The two driving science cases target the mildly- and highly non-linear...

18 février 2020

Data and Analysis Centre for Exoplanets

Le 13 février 2015 De 10h30 à 12h00 Nicolas BUCHSCHACHER Observatoire de Genève The Data Analysis Center for Exoplanets (DACE) is a facility based at the University of Geneva (CH) dedicated to extrasolar planets data visualisation, exchange and analysis. DACE is a platform...

18 février 2020

Shearing and shaping the dwarf galaxies of the Local Group

Le 6 février 2015 De 10h30 à 12h00 Noam LIBESKIND AIP, Potsdam Dwarf galaxies are the smallest yet most most abundant cosmological objects in existence. Yet owing to their low luminosity, they can only be seen in the immediate neighborhood of the Milky Way, a region known...

18 février 2020

The formation of giant planets on snowlines

Le 30 janvier 2015 De 10h30 à 12h00 Mohamad Ali-Dib Observatoire de Besançon   The properties and chemical compositions of giant planets strongly depend on their formation locations. The formation mechanisms of the ice giants Uranus and Neptune, and their elemental and...

18 février 2020

First science with MUSE: an overview

Le 16 janvier 2015 De 10h30 à 12h00 Roland BACON CRAL Lyon Six months after the start of science  operation and just a year after its first light, the 2nd generation VLT panoramic integral field spectrograph MUSE has already produced new science results. After a short...