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18 February 2020

Molecular cloud rotation in M33 and M51

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...

18 February 2020

X-raying nearby supernova remnants

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...

18 February 2020

The evolution of cool dwarf spin rates: Data, models, and tensions

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...

18 February 2020

Dark Matter and Dark Energy in the 2020s

Le 21 septembre 2018 De 10h30 à 12h00 Adriano Agnello ESO   Much of today's Universe is "dark". In the concordance cosmological scenario, Dark Energy is the likely culprit for the (observed) accelerated expansion of the Universe, while Dark Matter governs the motions of...

18 February 2020

Understanding the gas dynamics in the central 3 kpc of the Milky Way

Le 7 septembre 2018 De 10h30 à 12h00 Mattia Sormani Heidelberg I give an introduction to the gas dynamics in the bar region of the Milky Way, which is characterised by strong non-circular motions. I show how this allows to interpret the observed CO and HI longitude-velocity...