Seminar

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18 February 2020

ATLAS-NSW – A Micromegas perspective

Le 5 septembre 2014 De 10h30 à 12h00 Alan PEYAUD CEAIn order to benefit from the expected high luminosity performance that will be provided by the Phase-I [2018] upgraded LHC, the first station of the ATLAS muon end-cap system (Small Wheel, SW) will need to be replaced. The...

18 February 2020

High energy processes around supermassive black holes: an X-ray view

Le 4 juillet 2014 De 10h30 à 12h00 Emanuele NardiniUniversity of Keele, UKAccretion onto supermassive black holes (SMBHs) located in the centre of active galaxies is one of the most significant energy sources in the Universe. Since the X-ray emission of Active Galactic Nuclei...

18 February 2020

Star formation from a photometric end point

Le 20 juin 2014 De 10h30 à 12h00 Morgan FOUESNEAU MPIA HeidelbergAfter 4 years, The Panchromatic Hubble Andromeda Treasury (PHAT) program is complete. PHAT can now offer the ability to view the stars and the ISM together in M31, which is essential to understand the complex...

18 February 2020

Merging binaries of compact objects in full general relativity

Le 19 juin 2014 De 10h30 à 12h00 Luciano Rezzolla Institute of Theoretical Physics, Frankfurt, Germany The merger of a binary system of compact objects (neutron stars or black holes) is expected to be a strong source of gravitational waves, but will also be accompanied by an...

18 February 2020

A variable IMF in massive early-type galaxies?

Le 13 juin 2014 De 10h30 à 12h00 Carsten WEIDNER Instituto de Astrofísica de CanariasRecent evidence based independently on spectral line strengths and dynamical modelling of massive early-type galaxies (ETG) point towards a non-universal stellar initial mass function (IMF),...

18 February 2020

Plus de 40 ans d’informatique à l’Observatoire et au CDS

Le 6 juin 2014 De 10h30 à 12h00 Marc WENGER Observatoire astronomique de StrasbourgLe CDS a été crée en 1972, et a donc traversé plus de 40 ans d'évolution de l'informatique. Je présenterai quelques événements clé de cette histoire pendant laquelle tout a changé,...

18 February 2020

Supernova-driven accretion: tracing the origin of galactic gas

Le 23 mai 2014 De 10h30 à 12h00 Filippo FRATERNALI University of Bologna - University of GroningenGas accretion is required to feed the star formation in disc galaxies throughout cosmic time. However, observational evidence for infalling gas clouds is rather scant. Cosmology...

18 February 2020

Synthetic Spectra of Cool Dwarfs and Giants

Le 16 mai 2014 De 10h30 à 12h00 Bernhard ARINGER University of ViennaSome of the most important issues affecting models and spectra of cool stellar objects will be discussed. Special emphasis will be given to the role of molecular and dust opacities and to the problems...

18 February 2020

Galaxy Evolution across the Hubble Sequence from the CALIFA Survey

Le 11 avril 2014 De 10h30 à 12h00 Glenn VAN DE VEN MPIA - HeidelbergThe Calar Alto Legacy Integral Field Area (CALIFA) survey is the first ongoing integral-field spectroscopic survey of a diameter-selected (45" < D_25 < 80") sample of up to 600 galaxies in the local...

18 February 2020

Astronomie gamma, physique des particules et cosmologie

Le 27 mars 2014 Pierre BrunCEA Saclay, Irfu L'astronomie gamma au sol est entrée dans une phase mûre avec le succès des réseaux de télescopes Tcherenkov au sol HESS, MAGIC et VERITAS. Les grandes sensibilités de ces instruments permettent à présent d'utiliser l'univers à...