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      Star formation in cosmic-dawn galaxies

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          Abstract

          In the first two years of operation JWST has delivered key new insights into the formation and evolution of galaxies in the early Universe. By combining imaging with spectroscopy, we discovered and characterised the first generation of galaxies, probing the Universe at an age of 300 million years. While the current JWST observations confirm the overall cosmological framework and the paradigm of galaxy formation, there are also surprises, including large abundances of bright galaxies and accreting black holes in the early Universe. These observations, together with detailed measurements of the stellar populations and morphological structure, will help us to develop in the coming years a more refined understanding of the baryonic physics (including star formation and feedback processes) that leads to the formation of mature systems at later epochs, including our own Milky Way galaxy.

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          Author and article information

          Journal
          05 October 2024
          Article
          2410.04227
          8b9810c4-dabc-42ff-8931-809cc580e38c

          http://creativecommons.org/licenses/by/4.0/

          History
          Custom metadata
          To be published in "Astrophysics: The James Webb Space Telescope: from first light to new world views", proceedings of the Pontifical Academy of Sciences workshop February 27-29 2024, Vatican City, E.F. van Dishoeck and G. Consolmagno (eds)
          astro-ph.GA

          Galaxy astrophysics
          Galaxy astrophysics

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