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2 months ago | 
nature.com | Jakob M. Helton |Zihao Wu |Daniel Eisenstein |Stefano Carniani |William Baker |Rachana Bhatawdekar | +16 more
AbstractThe James Webb Space Telescope (JWST) has spectroscopically confirmed numerous galaxies at z > 10. While weak rest-frame ultraviolet emission lines have only been seen in a handful of sources, the stronger rest-frame optical emission lines are highly diagnostic and accessible at mid-infrared wavelengths with the Mid-Infrared Instrument (MIRI) of JWST.
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Jul 29, 2024 | 
nature.com | Stefano Carniani |Daniel Eisenstein |Peter Viggo Jakobsen |Benjamin Johnson |Roberto Maiolino |Chris Willott | +24 more
AbstractThe first observations of JWST have revolutionized our understanding of the Universe by identifying for the first time galaxies at \(z\sim 13\)1–3. In addition, the discovery of many luminous galaxies at Cosmic Dawn (\(z > 10\)) has suggested that galaxies developed rapidly, in apparent tension with many standard models4–8. However, most of these galaxies lack spectroscopic confirmation, so their distances and properties are uncertain.
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Jul 29, 2024 | nature.com | Stefano Carniani |Daniel Eisenstein |Peter Viggo Jakobsen |Benjamin Johnson |Roberto Maiolino |Chris Willott | +24 more
AbstractThe first observations of JWST have revolutionized our understanding of the Universe by identifying for the first time galaxies at \(z\sim 13\)1–3. In addition, the discovery of many luminous galaxies at Cosmic Dawn (\(z > 10\)) has suggested that galaxies developed rapidly, in apparent tension with many standard models4–8. However, most of these galaxies lack spectroscopic confirmation, so their distances and properties are uncertain.
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Jul 29, 2024 | nature.com | Stefano Carniani |Daniel Eisenstein |Peter Viggo Jakobsen |Benjamin Johnson |Roberto Maiolino |Chris Willott | +24 more
AbstractThe first observations of JWST have revolutionized our understanding of the Universe by identifying for the first time galaxies at \(z\sim 13\)1–3. In addition, the discovery of many luminous galaxies at Cosmic Dawn (\(z > 10\)) has suggested that galaxies developed rapidly, in apparent tension with many standard models4–8. However, most of these galaxies lack spectroscopic confirmation, so their distances and properties are uncertain.
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May 31, 2024 | 
inkl.com | Stefano Carniani
The James Webb Space Telescope has peered back in time to detect two of the earliest and the most distant known galaxies ever seen, allowing astronomers to observe the universe as it was when it was only 300 million years old. The record-breaking galaxies, dubbed GS-z14-0 and GS-z14-1, were identified by an international team of scientists who were part of the Jades (JWST Advanced Deep Extragalactic Survey) collaboration.
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May 14, 2024 | 
aanda.org | Stefano Carniani |Giacomo Venturi |Eleonora Parlanti |Anna de Graaff
We find evidence for ionised outflows in 25%−40% of the 52 galaxies of the sample, where the incidence rate depends on the S/N. This incidence rate may be caused by the geometry of the outflowing gas. When the outflows have a biconical morphology with an opening angle of ∼45 deg, we expect an incidence rate of ∼30%, which is consistent with our observations.
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Apr 19, 2024 | 
hal.science | Eleonora Parlanti |Stefano Carniani |Hannah Übler |Giacomo Venturi
Article Dans Une Revue Astronomy and Astrophysics - A&A Année : 2024 GA-NIFS: Early-stage feedback in a heavily obscured AGN at $z=4.76$ Origine : Fichiers éditeurs autorisés sur une archive ouverte hal-04230073 , version 1 (19-04-2024) Eleonora Parlanti, Stefano Carniani, Hannah Übler, Giacomo Venturi, Francesco d'Eugenio, et al.. GA-NIFS: Early-stage feedback in a heavily obscured AGN at $z=4.76$.
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Mar 29, 2024 | 
aanda.org | Stefano Carniani |Hannah Übler |Madingley Road |Eleonora Parlanti
Home All issues Volume 684 (April 2024) A&A, 684 (2024) A24 Full HTML Issue A&A Volume 684, April 2024 Article Number A24 Number of page(s) 23 Section Extragalactic astronomy DOI https://doi.org/10.1051/0004-6361/202347914 Published online 29 March 2024 A&A, 684, A24 (2024) GA-NIFS: Early-stage feedback in a heavily obscured active galactic nucleus at z = 4.76 1, 1, 2,3, 1, 4,5, 2,3, 6, 7, 8, 9, 2,3,5, 6, 6, 10, 9, 7, 7, 11, 7, 12, 6 and 2,3 1 Scuola Normale Superiore, Piazza dei Cavalieri 7,...
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Jan 17, 2024 | 
nature.com | Roberto Maiolino |Joris Witstok |Stefano Carniani |Anna de Graaff |Hannah Übler |Sandro Tacchella | +20 more
AbstractMultiple theories have been proposed to describe the formation of black hole seeds in the early Universe and to explain the emergence of very massive black holes observed in the first billion years after Big Bang1–3. Models consider different seeding and accretion scenarios4–7, which require the detection and characterisation of black holes in the first few hundred million years after Big Bang to be validated.
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Jan 17, 2024 | nature.com | Roberto Maiolino |Joris Witstok |Stefano Carniani |Anna de Graaff |Hannah Übler |Sandro Tacchella | +20 more
AbstractMultiple theories have been proposed to describe the formation of black hole seeds in the early Universe and to explain the emergence of very massive black holes observed in the first billion years after Big Bang1–3. Models consider different seeding and accretion scenarios4–7, which require the detection and characterisation of black holes in the first few hundred million years after Big Bang to be validated.
