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CREATED:20260113T105214Z
LAST-MODIFIED:20260213T142747Z
UID:29108-1771504200-1772112600@www.iaa.csic.es
SUMMARY:Deep Learning for Small Astrophysical Datasets: From Cosmology to Exoplanet Detection
DESCRIPTION:Deep learning is increasingly revolutionizing astrophysics by enabling advanced analysis of complex and high-dimensional datasets. However\, the application of these methods is often limited by data availability and noise\, requiring careful model design\, optimization\, and regularization to balance performance and robustness. \nThis talk presents recent research addressing these challenges\, including deep learning techniques for cosmological parameter reconstruction\, the use of genetic algorithms to optimize neural networks and improve precision\, and the combination of these methods to accelerate Bayesian inference. It then focuses on applications to the detection of Earth-like exoplanets using stellar radial-velocity measurements\, where stellar activity and instrumental effects dominate the signal. In particular\, deep learning models trained directly on real high-resolution stellar spectra are shown to recover tiny Doppler shifts in unseen data\, approaching the precision required for the detection of terrestrial planets. \nThe seminar aims to provide practical insights into the effective use of deep learning for astrophysical problems in which data are limited\, and precision is crucial. \nFecha y lugar: 19/02/2026 – 12:30 | Salón de ActosIsidro Gómez VargasIAA-CSIC \n  \n 
URL:https://www.iaa.csic.es/evento/deep-learning-for-small-astrophysical-datasets-from-cosmology-to-exoplanet-detection/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:Seminarios
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DTSTART;TZID=Europe/Paris:20260224T123000
DTEND;TZID=Europe/Paris:20260224T133000
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CREATED:20251118T090057Z
LAST-MODIFIED:20260302T100102Z
UID:28797-1771936200-1771939800@www.iaa.csic.es
SUMMARY:HAYDN: A Next-Generation ESA Mission Concept for Stellar Structure and Evolution and its impact on exoplanet and galaxy formation
DESCRIPTION:HAYDN is one of the ten mission concepts proposed to ESA’s M-class call (M8) after its Step-1 selection. It is designed to revolutionise our understanding of stellar structure and evolution through high-precision\, space-based asteroseismology in dense stellar fields\, including clusters. By performing continuous photometric monitoring of stars in these dense stellar fields\, HAYDN aims to map stellar interiors across a wide range of ages\, masses\, and chemical environments—providing unprecedented constraints on stellar physics\, Galactic evolution\, exoplanet’s formation\, and the formation history of the Milky Way\, for naming some of the HAYDN’s science cases.In this talk\, I will present the scientific motivation\, mission architecture\, and observational strategy of HAYDN\, as well as the unique diagnostic power that seismic measurements offer for probing stellar structure in environments inaccessible to current missions. I will also give an overview of the current status of the proposal\, its evolution from ESA’s M7 cycle to the ongoing M8 selection process\, and the major technical milestones achieved so far. \nA significant part of the talk will highlight the Spanish contribution to HAYDN\, including leadership roles in mission science\, coordination of key working groups\, and involvement in the design of the payload and data processing pipeline. Spain is currently the second-largest contributor to the project\, with active participation from several national institutes and universities. \nFinally\, I will outline the opportunities HAYDN opens for the Spanish community—from synergies with ground-based facilities to participation in science preparation activities—and discuss how this mission could strengthen Spain’s strategic presence in future ESA space-astrophysics programmes. \nFecha y lugar: 24/02/2026 – 12:30 | Salón de ActosAndy MoyaUniversitat de València \n  \n 
URL:https://www.iaa.csic.es/evento/haydn-a-next-generation-esa-mission-concept-for-stellar-structure-and-evolution-and-its-impact-on-exoplanet-and-galaxy-formation/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:Seminarios
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