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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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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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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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Selwood M, Fotopoulou S, Bremer MN, Bisigello L et autres
© The Authors 2025. We forecast the expected population of active galactic nuclei (AGN) observable in the Euclid Wide Survey (EWS) and Euclid Deep Survey (EDS). Starting from an X-ray luminosity function (XLF), we generated volume-limited samples of the AGN expected in …
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Hunt LK, Annibali F, Cuillandre J-C, Ferguson AMN et autres
© The Authors 2025. Euclid is poised to make significant advances in the study of nearby galaxies in the Local Universe. Here we present a first look at six galaxies observed for the Nearby Galaxy Showcase as part of the Euclid Early …
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McPartland CJR, Zalesky L, Weaver JR, Toft S et autres
© 2025 The Authors.Euclid will provide deep near-infrared (NIR) imaging to ∼26.5 AB magnitude over ∼59 deg2 in its deep and auxiliary fields. The Cosmic DAWN survey combines dedicated and archival UV- NIR observations to provide matched depth multiwavelength imaging of the …
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Congedo G, Miller L, Taylor AN, Cross N et autres
© The Authors 2024. LENSMC is a weak lensing shear measurement method developed for Euclid and Stage-IV surveys. It is based on forward modelling in order to deal with convolution by a point spread function (PSF) with comparable size to many galaxies, …
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Saglia R, Mehrgan K, de Nicola S, Thomas J et autres
© The Authors 2024. Core ellipticals, which are massive early-type galaxies with almost constant inner surface brightness profiles, are the result of dry mergers. During these events, a binary black hole (BBH) is formed, destroying the original cuspy central regions of the …