Search Results - "Marconcini, Cosimo"
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The missing FeII bump in faint JWST AGN: possible evidence for metal-poor broad-line regions at early cosmic times
Published 29-10-2024“…Recent JWST observations have revealed a large population of intermediate/low-luminosity AGN at early times with peculiar properties, different from local AGN…”
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GA-NIFS: the interplay between merger, star formation and chemical enrichment in MACS1149-JD1 at z=9.11 with JWST/NIRSpec
Published 11-07-2024“…We present JWST/NIRSpec integral-field spectroscopy observations of the z ~ 9.11 lensed galaxy MACS1149-JD1, as part of the GA-NIFS programme. The data was…”
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GA-NIFS: A galaxy-wide outflow in a Compton-thick mini-BAL quasar at z = 3.5 probed in emission and absorption
Published 20-11-2024“…Studying the distribution and properties of ionised gas in outflows driven by AGN is crucial for understanding the feedback mechanisms at play in extragalactic…”
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Bubbles and outflows: the novel JWST/NIRSpec view of the z=1.59 obscured quasar XID2028
Published 20-03-2023“…A&A 672, A128 (2023) Quasar feedback in the form of powerful outflows is invoked as a key mechanism to quench star formation in galaxies, although direct…”
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The optically elusive, changing-look active nucleus in NGC 4156
Published 17-10-2022“…A&A 667, L12 (2022) We report on the changing-look nature of the active galactic nucleus (AGN) in the galaxy NGC 4156, as serendipitously discovered thanks to…”
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Journal Article