Seminar

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Du 12 February 2021 au 12 February 2021

Séminaire – François Mernier (ESA/ESTEC)

From stars to large-scale structures: chemical enrichment in the intracluster medium AbstractDespite being the building blocks of rocky planets and even life, metals mostly reside outside galaxies - i.e. within a hot, ionized, X-ray emitting plasma pervading galaxy clusters and groups, and...

Du 5 February 2021 au 5 February 2021

Séminaire – Nicolas Martinet (LAM)

Probing dark energy with cosmic shear AbstractUnderstanding the accelerated expansion of the Universe is one of the most important challenges of modern cosmology. Thanks to the development of large dedicated surveys (Euclid, Rubin/LSST, Roman/WFIRST), weak-lensing cosmic shear offers the...

Du 22 January 2021 au 22 January 2021

Séminaire – Benoît Commerçon (CRAL)

Protostellar disk formation in low- and high-mass star formation AbstractThe new generation of interferometers provide unprecedented constraints on the protostellar disk formation process. Observations indicate that most protostellar disks have a small extent at the Class 0 stage and that disks...

Du 20 August 2020 au 23 August 2020

The new phase space complexity of old stellar systems

Le 14 février 2020 De 10h30 à 12h00 Anna Lisa Varri University of Edinburgh Our traditional interpretative picture of the internal dynamics of ancient star clusters has been recently revolutionized by a series of discoveries about their chemical, structural, and kinematic properties....

18 February 2020

Deuterated Species as Tracers of Star Formation

Le 7 février 2020 De 10h30 à 12h00 Laurent Pagani Observatoire de Paris In the ‘70s, while several groups were trying to measure various isotopic ratios in dark clouds (13C/12C, 18O/17O/16O,...), it was quickly realized that the D/H ratio of several molecules was...

18 February 2020

Constraining feedback models with Giant Ly-alpha nebulae at z~3

Le 17 janvier 2020 De 10h30 à 12h00 Gabriele Pezzulli ETH Zurich   Galaxy formation models rely on mechanisms to keep the majority of baryons outside of the main body of galaxies. Different scenarios, however, make different predictions about where these "galactic missing...

18 February 2020

The future is certain: Supernova Remnants in the multi-messenger era

Le 10 janvier 2020 De 10h30 à 12h00 Miroslav Filipovic Western Sydney University  This is an exciting time for the discovery and study of supernova remnants (SNRs), which reflect a major process in the elemental enrichment of the interstellar medium (ISM). The study of this...

18 February 2020

Quenching star formation in massive galaxies

Le 20 décembre 2019 De 10h30 à 12h00 Allison Man University of Toronto  A fundamental question in galaxy evolution is how galaxies acquire diverse colours and morphologies. The current paradigm suggests that massive galaxies experienced accelerated growth in the early Universe...