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Nagam BC, Acevedo Barroso JA, Wilde Michael J, Andika IT et autres
© 2025 The Authors. Several new galaxy-galaxy strong gravitational lenses have been detected in the early release observations (ERO) from Euclid. The all-sky survey is expected to find 170 000 new systems, which are expected to greatly enhancing studies of dark matter …
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Bergamini P, Meneghetti M, Angora G, Bazzanini L et autres
© The Authors 2025.We present HST2EUCLID, a novel Python code to generate Euclid realistic mock images in the HE, JE, YE, and IE photometric bands based on panchromatic Hubble Space Telescope observations. The software was used to create a simulated database of …
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Pearce-Casey R, Nagam BC, Wilde Michael J, Busillo V et autres
© The Authors 2025.The Euclid Wide Survey (EWS) is predicted to find approximately 170 000 galaxy-galaxy strong lenses from its lifetime observation of 14 000 deg2 of the sky. Detecting this many lenses by visual inspection with professional astronomers and citizen scientists …
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Banados E, Le Brun V, Belladitta S, Momcheva I et autres
© 2025 The Author(s). We demonstrate the potential of Euclid 's slitless spectroscopy to discover high-redshift (5$]]>) quasars and their main photometric contaminant, ultracool dwarfs. Sensitive infrared spectroscopy from space is able to efficiently identify both populations, as demonstrated by Euclid Near-Infrared …
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Hogg NB, Nightingale JW, He Q., McCleary J et autres
© The Author(s) 2025. Published by Oxford University Press on behalf of Royal Astronomical Society.We compare forecasts for the abundance and properties of strong gravitational lenses in the COSMOS-Web survey, a 0.54 deg2 survey of the COSMOS field using the NIRCam and …
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Kovacic I, Baes M, Nersesian A, Andreadis N et autres
© The Authors 2025.The Euclid mission is generating a vast amount of imaging data in four broadband filters at a high angular resolution. This data will allow for the detailed study of mass, metallicity, and stellar populations across galaxies that will constrain …
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Voggel K, Lancon A, Saifollahi T, Larsen SS et autres
© The Authors 2025.Extragalactic globular clusters (EGCs) are an abundant and powerful tracer of galaxy dynamics and formation, and their own formation and evolution is also a matter of extensive debate. The compact nature of globular clusters means that they are hard …
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A. Humphrey, Cunha PAC, Bisigello L, Tortora C et autres
© The Authors 2025.The Euclid Space Telescope will image about 14 000 deg2 of the extragalactic sky at visible and near-infrared wavelengths, providing a dataset of unprecedented size and richness that will facilitate a multitude of studies into the evolution of galaxies. …
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Ellien A, Montes M, Ahad SL, Dimauro P et autres
© The Authors 2025.Intracluster light (ICL) provides a record of the dynamical interactions undergone by clusters, giving clues on cluster formation and evolution. Here, we analyse the properties of ICL in the massive cluster Abell 2390 at redshift z = 0.228. Our …
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Acevedo Barroso JA, O'riordan CM, B. Clément, Tortora C et autres
© The Authors 2025. We investigated the ability of the Euclid telescope to detect galaxy-scale gravitational lenses. To do so, we performed a systematic visual inspection of the 0.7 deg2 Euclid Early Release Observations data towards the Perseus cluster using both the …
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Lines NEP, Li T, Collett TE, Holloway P et autres
© Springer Nature Limited 2025.Strong gravitational lensing offers a powerful and direct probe of dark matter, galaxy evolution and cosmology, yet strong lenses are rare: only 1 in roughly 10,000 massive galaxies can lens a background source into multiple images. The European …
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Kluge M, Hatch NA, Montes M, Golden-Marx JB et autres
© The Authors 2025. We study the intracluster light (ICL) and intracluster globular clusters (ICGCs) in the nearby Perseus cluster of galaxies using Euclid’s Early Release Observations. By modelling the isophotal and iso-density contours, we mapped the distributions and properties of the …