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Le 14 décembre 2018 De 10h30 à 12h00 Michal Bilek (ObAS) The purpose of this talk will be to introduce myself and my work so far. Modified Newtonian Dynamics (aka MOND) is the leading alternative to the dark matter hypothesis in galaxies, suggesting a modification of the...
Le 7 décembre 2018 De 10h30 à 12h00 Aurel Schneider (ETH Zurich) I will discuss the most promising gravitational probes to constrain non-cold or collisional dark matter scenarios. This includes dwarf galaxy statistics, weak lensing, and the global 21-cm signal....
Le 30 novembre 2018 De 10h30 à 12h00 Wilma Trick MPA Garching The second Gaia data release from April 2018 has revealed an astounding amount of non-axisymmetric stellar substructure in the Milky Way. In this talk, I will present the orbit structure of the Galactic disk...
Le 23 novembre 2018 De 10h30 à 12h00 Max Gronke UC Santa Barbara Galactic winds are large-scale, multiphase outflows from galaxies and crucial for the galactic ecosystem. They are, thus, a potent probe for the underlying feedback mechanisms. However, these winds are still...
Le 16 novembre 2018 De 10h30 à 12h00 Jonathan Braine LAB, Bordeaux Systematic rotation of molecular clouds was detected for the first time in the Local Group spiral Messier 33, where a sample of 566 molecular clouds is available. There is a clear preference for prograde...
Le 9 novembre 2018 De 10h30 à 12h00 HongSheng Zhao University of St Andrews I will discuss some common misperceptions about dynamics and lensing. Present and future large telescopes can provide a new type of data for modelling galaxies and...
Le 26 octobre 2018 De 10h30 à 12h00 Rhys Taylor Astronomical Institute, Prague The Arecibo Galaxy Environment Survey is a large-area, blind neutral hydrogen survey, designed to observe the full range of galaxy environments without the optical biases of traditional surveys....
Le 19 octobre 2018 De 10h30 à 12h00 Payel Das Oxford Galaxy evolution seeks to understand how the featureless groups of stars in the early Universe metamorphosed into the diverse range of morphologies that can be observed today. There are a number of drivers acting on...
Le 12 octobre 2018 De 10h30 à 12h00 Pierre Maggi ObAS Supernova remnants (SNRs) are the fingerprints left in the interstellar medium by either thermonuclear (type Ia) or core-collapse (CC) supernova explosions. The Magellanic Clouds (MCs) offer an ideal laboratory for the...
Le 5 octobre 2018 De 10h30 à 12h00 Marcel Agüeros Columbia Stellar ages are notoriously difficult to measure accurately for main-sequence low-mass stars, severely limiting our ability to address questions ranging from the evolutionary state of exoplanets to the chemical...