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January 2017
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No Seminar — No Seminar

Friday 6 January 2017 11:00-12:00 - Amphi


Lia Athanassoula (LAM) — Major mergers and disc galaxy formation

Friday 13 January 2017 11:00-12:00 - Amphi

Abstract: Using high resolution numerical simulations — addressing the dynamics, the star formation, and the chemical evolution — we follow the formation of disc galaxies during wet major mergers in which each protogalaxy is embedded in a hot gaseous halo. We witness the destruction of the discs of the protogalaxies and the inside-out formation of a new disc, which is both massive and extended. We also witness the formation of a classical bulge component whose mass relative to the disc varies from one run to another, taking values that cover all the range from lenticulars to spiral galaxies. The rotation curves are flat. In all our simulations the disc has substructures, such as bars, lenses, spirals and rings, with realistic morphology, including ansae and boxy/peanut bulges. We will briefly discuss some dynamics of these substructures, as well as the formation and properties of the thin and thick disc components. Last but not least, we will present results on metallicity and make comparisons with observations in the bar/bulge regions of our Galaxy.

Roger Bonnet (IAP) — Space Science in Europe

Friday 20 January 2017 11:00-12:00 - Amphi

Abstract: While Europe is Number one in the world in both ground-based astronomy with ESO and in nuclear physics with CERN, ESA, the largest space organization in Europe, is only Number 2 in space science. The seminar will analyze that particular situation through a brief historical review of the development of space science in Europe, followed by a reflection of why and how has Europe nevertheless been able to occupy a leading role in several areas of space astronomy, solar physics, planetary sciences and plasma physics. With a budget much bigger than ESA’s, NASA seems to have lost its capacity of reliably responding to the expectations of the US and international scientific community. The conditions of ESA’s success, based on a unique innovation approach, will be discussed in view of the future development of European Space Science and its future and essential role on the international scene.

Ray Sharples (Durham University) — Recent results from KMOS

Friday 27 January 2017 11:00-12:00 - Amphi

Abstract: The Centre for Advanced Instrumentation at Durham University, UK develops state-of-the-art instruments for application across a wide range of disciplines including astronomical instrumentation, biophysics, remote sensing and fusion diagnostics. In this talk I will focus on the KMOS multi IFU spectrograph built for the ESO VLT and the scientific results from the consortium GTO programmes.

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