Webinaire ASNUM Vincent Reverdy Laboratoire d’Annecy de Physique des Particules The Evolution and Standardization of C++ for the Future of Numerical Astrophysics Voir le Replay : https://astrotube.obspm.fr/w/8p7178BkGcBDnMmpwBxrMW Over the last 15 years, the C++ programming language has evolved significantly, providing more constructs and features to users. But while a part of the numerical…
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Webinaire ASNUM Damien Chapon CEA Saclay The Galactica database: an open, generic and versatile tool for the dissemination of numerical simulation data in astrophysics. Voir le Replay : https://astrotube.obspm.fr/w/erkY4XZXobPs9LxNoULTgr Résumé : The Galactica simulation database is a platform designed to assist computational astrophysicists with their open science approach based on FAIR principles. It…
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Webinaire ASNUM Building new brains for giant astronomical telescopes with Deep Neural Networks Damien Gratadour Observatoire de Paris Voir le Replay : https://astrotube.obspm.fr/w/2S6koiJ8Zr2SRhdNn5uQWb The field of experimental astronomy is entering an exciting new era, with the emergence of extremely large telescopes, hosts to primary mirrors the size of several basketball courts. Among the many challenges…
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Webinaire ASNUM Alain Miniussi et Elena Lega Observatoire de la Côte d'Azur Planet-disk interactions with the fargOCA code: transitioning from CPUs to Hybrid Architectures with Kokkos Voir le Replay : https://astrotube.obspm.fr/w/hK44dwS5M5qcJPRZSxXHie Accès aux tutoriels :https://gitlab.oca.eu/DISC/presentations/fargoca/asnum-20241209-kokkos The original version of the FARGO code (Fast Advection in Rotating Gaseous Objects) was written in C in 2000…
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Webinaire ASNUM Adeline Paiement Université de Toulon Domain-informed analysis of (astro)physics data Replay : https://astrotube.obspm.fr/w/csDA8KVJTmZ8NA8a7Eh7rM Machine learning and deep learning methods are increasingly popular for analysing physics and astrophysics data. However, their use often faces some specific challenges, such as the low availability of annotated ground-truth data, or the interpretability of (learning) models and of…
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Webinaire ASNum Paolo Bianchini Université de Strasbourg Enhancing Globular Cluster simulations with deep-learning: a forward modelling approach voir le Replay : https://astrotube.obspm.fr/w/6XqnjvToxf3kAjUMnvoEw3 Globular clusters (GCs) are ubiquitous stellar systems found in nearly all galaxies; however, their origin in the primordial universe remains unknown. Despite their apparent simplicity, GCs present several modelling challenges: due…
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Webinaire ASNUM Emeric Bron OBSPM Dissecting the physics and chemistry of UV irradiated molecular gas with the Meudon PDR code voir le Replay : https://astrotube.obspm.fr/w/jUQfmH1ToPE2ZWzEw19Nro The Meudon PDR code is a state-of-the-art reference code for the study of the physics and chemistry of the interstellar medium, and in particular the impact of radiative feedback from…
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Webinaire ASNUM Jeff Wagg OCA The Era of Big Data in Radio Astronomy https://astrotube.obspm.fr/w/jUcNpvdsEdYyJSrh79G1ee Studying the faintest radio emitting objects in the Universe requires large single-dish telescopes, or multi-element interferometer arrays of either dishes or dipole antennas. The most ambitious of these is the international Square Kilometre Array Observatory (SKAO), consisting of two interferometers in…
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Webinaire ASNUM Nicolas Dobigeon Toulouse INP Multiband image fusion under spectrally varying spatial blurs — Application to JWST data https://univ-grenoble-alpes-fr.zoom.us/j/98838875999?pwd=eDVaQmp3bmdjMC8rbjJUa2d2c2xBUT09 Multiband image fusion has been extensively studied in the literature of Earth observation. This task aims at recovering a multiband image of high spatial and high spectral resolutions from complementary measurements of lower spatial or…
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Webinaire ASNUM Clément Baruteau IRAP Hydrodynamical simulations of the reflex instability in protoplanetary discs Replay : https://astrotube.obspm.fr/w/r34pJg4Y6LwExtiZwREV8z Theoretical studies of protoplanetary discs have a long history, with many works on what instabilities may grow, and how they impact disc evolution and planet formation. By running long-term hydrodynamical simulations of disc-planet interactions, we have recently (and…
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