Events

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Du 3 December 2021 au 3 December 2021

Séminaire – Alexis Coleiro (APC)

Multimessenger astronomy with neutrinos : what have we learned so far ? Abstract The recent detection of high-energy astrophysical neutrinos and gravitational waves open a new era in multimessenger astronomy. Exploring high-energy sources with these new messengers and electromagnetic...

Du 26 November 2021 au 26 November 2021

Séminaire – Gregory Green (MPIA Heidelberg)

What can auto-differentiation do for you? Applications of machine-learning tools to stars, dynamics and dust Abstract Machine learning has found increasing use in astronomy over the last few years. In this talk, instead of discussing machine learning itself, I will discuss how a mathematical...

Du 19 November 2021 au 19 November 2021

Séminaire – Katarina Kraljic (LAM)

Galaxy evolution in the metric of the cosmic web Abstract The matter distribution in the Universe follows a spectacular web-like structure consisting of voids, walls, filaments and nodes, naturally defining the environment in which galaxies form and evolve across cosmic time. That certain...

Du 12 November 2021 au 12 November 2021

Séminaire – Riccardo Ferrazzoli (INAF/IAPS)

X-ray polarimetry with IXPE Abstract Polarimetry in the X-ray band would help us answer many open questions on the nature of emission processes and geometry in many celestial sources. However, the field of X-ray polarimetry has been dormant for decades, with only one object, the Crab Nebula,...

Du 5 November 2021 au 5 November 2021

Séminaire – Antoine Grandjean (Unistra)

A statistical study on young giant planets from radial velocity surveys  Abstract The study of the close to 5000 exoplanets and brown dwarfs companions known to date has evidenced the importance of early evolution stages of planet formation processes. Yet, a better understanding of...

Du 22 February 2022 au 4 March 2022

Second ESCAPE VO School

The ESCAPE project is organising its second international Virtual Observatory school as a hybrid meeting at the Observatoire Astronomique de Strasbourg, France and online in Zoom. The School will take place from February 22-24 2022 and on March 04 2022. The Virtual Observatory (VO) is...

Du 22 October 2021 au 22 October 2021

Séminaire – Eleonora Di Valentino (Sheffield)

Cosmological tensions: hints for a new concordance model?  Abstract The Cosmic Microwave Background temperature and polarization anisotropy measurements have provided strong confirmation of the LCDM model of structure formation. Even if this model can explain incredibly well the...

Du 8 October 2021 au 8 October 2021

Séminaire – Martin Rey (Oxford)

The diversity of galaxies in the low surface brightness Universe  Abstract Recent advances in imaging capabilities have transformed our understanding of galaxies at the low surface brightnesses frontier, unveiling a new population of ever smaller "ultra-faint" dwarf galaxies, and more and...

Du 1 October 2021 au 1 October 2021

Séminaire – Margot Brouwer (Kapteyn, Groningen)

Dark matter: 'real stuff' or gravity misunderstood? AbstractFor almost a century, astronomers have been in conflict about the mysterious nature of dark matter. Is the additional mass that we observe in the Universe ‘real’, or is it the result of deviations from the laws of gravity as we...

Du 24 September 2021 au 24 September 2021

Séminaire – Jan Rybizki (MPIA, Heidelberg)

Galaxy Modelling Tools: From mock catalogues, spurious parallaxsolutions and chemical evolution Abstract With each data release the Gaia mission provides us with more observational constraints of the Milky Way. What we are able to infer from these is limited by our ability to model and...