activity
20222026
most citedEuclid. I. Overview of the Euclid mission

550 citations · 650 across the 17 of their papers we have counts for

collaborators

17 papers

astro-ph.GA2026

Euclid Quick Data Release (Q1). Searching for radio-selected \Euclid-dark galaxies in the EDF-N

Euclid Collaboration, M. Giulietti, I. Prandoni +308

We present and investigate the properties of a sample of radio-selected, Euclid-dark galaxies, identified from LOFAR HBA observations at 144 MHz within the Euclid Deep Field-North…

astro-ph.GA2026

The MUSE-Faint survey V. The binary fraction of Leo T

Daniel Vaz, Jarle Brinchmann, Sebastian Kamann +3

The Leo T dwarf galaxy, the faintest and least massive galaxy known to have recent star formation (), exhibits a high dynamical mass-to-light ratio based on its stellar…

astro-ph.GA2025

Euclid Quick Data Release (Q1): Euclid spectroscopy of quasars. 1. Identification and redshift determination of 3500 bright quasars

Euclid Collaboration, Y. Fu, R. Bouwens +354

The slitless spectroscopy mode of the NISP onboard Euclid has enabled efficient spectroscopy of objects within a large FoV. We present a large and homogeneous sample of bright quas…

astro-ph.GA2025

Euclid Quick Data Release (Q1). Spectroscopic unveiling of highly ionised lines at z = 2.48-3.88

Euclid Collaboration, D. Vergani, S. Quai +316

This study explores a rare population of sources in a currently uncharted region of spectroscopic redshift space in the Euclid Quick Data Release (Q1), and is intended potentially…

astro-ph.GA2025

A gradient boosting and broadband approach to finding Lyman-α emitting galaxies beyond narrowband surveys

A. Vale, A. Paulino-Afonso, A. Humphrey +5

In this work, we test whether gradient-boosting algorithms, trained on broadband photometric data from traditional Lyman- emitting (LAE) surveys, can efficiently and accurately…

astro-ph.GA2025★ 2 cited

Euclid preparation. Estimating galaxy physical properties using CatBoost chained regressors with attention

Euclid Collaboration, A. Humphrey, P. A. C. Cunha +232

Euclid will image ~14000 deg^2 of the extragalactic sky at visible and NIR wavelengths, providing a dataset of unprecedented size and richness that will facilitate a multitude of s…

astro-ph.GA2025

Euclid Quick Data Release (Q1) First study of red quasars selection

Euclid Collaboration, F. Tarsitano, S. Fotopoulou +322

Red quasars constitute an important but elusive phase in the evolution of supermassive black holes, where dust obscuration can significantly alter their observed properties. They h…

astro-ph.GA2025★ 1 cited

Euclid Quick Data Release (Q1) Exploring galaxy properties with a multi-modal foundation model

Euclid Collaboration, M. Siudek, M. Huertas-Company +321

Modern astronomical surveys, such as the Euclid mission, produce high-dimensional, multi-modal data sets that include imaging and spectroscopic information for millions of galaxies…

astro-ph.GA2025★ 2 cited

Exploring the physical properties of Type II Quasar candidates at intermediate redshifts with CIGALE

P. A. C. Cunha, A. Humphrey, J. Brinchmann +4

Active Galactic Nuclei (AGN) significantly influence galaxy evolution. Specific sources such as obscured AGNs, especially Type II quasars (QSO2), still remain understudied. We char…

astro-ph.GA2024

Euclid preparation. XLIX. Selecting active galactic nuclei using observed colours

Euclid Collaboration, L. Bisigello, M. Massimo +244

Euclid will cover over 14000 with two optical and near-infrared spectro-photometric instruments, and is expected to detect around ten million active galactic nuclei (AGN)…

astro-ph.GA2024★ 8 cited

Euclid preparation. LI. Forecasting the recovery of galaxy physical properties and their relations with template-fitting and machine-learning methods

Euclid Collaboration, A. Enia, M. Bolzonella +260

Euclid will collect an enormous amount of data during the mission's lifetime, observing billions of galaxies in the extragalactic sky. Along with traditional template-fitting metho…

astro-ph.IM2024★ 5 cited

Identifying type II quasars at intermediate redshift with few-shot learning photometric classification

P. A. C. Cunha, A. Humphrey, J. Brinchmann +5

We aim to identify QSO2 candidates in the redshift desert using optical and infrared photometry. At this intermediate redshift range, most of the prominent optical emission lines i…

astro-ph.CO2024★ 550 cited

Euclid. I. Overview of the Euclid mission

Euclid Collaboration, Y. Mellier, Abdurro'uf +1134

The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy, remains unknown. Eucl…

astro-ph.GA2023★ 8 cited

Selection of powerful radio galaxies with machine learning

R. Carvajal, I. Matute, J. Afonso +12

We developed and trained a pipeline of three machine learning (ML) models than can predict which sources are more likely to be an AGN and to be detected in specific radio surveys.…

astro-ph.GA2022★ 11 cited

Improving machine learning-derived photometric redshifts and physical property estimates using unlabelled observations

A. Humphrey, P. A. C. Cunha, A. Paulino-Afonso +5

In the era of huge astronomical surveys, machine learning offers promising solutions for the efficient estimation of galaxy properties. The traditional, `supervised' paradigm for t…

astro-ph.IM2022★ 41 cited

Machine-learning classification of astronomical sources: estimating F1-score in the absence of ground truth

A. Humphrey, W. Kuberski, J. Bialek +5

Machine-learning based classifiers have become indispensable in the field of astrophysics, allowing separation of astronomical sources into various classes, with computational effi…

astro-ph.IM2022★ 22 cited

Euclid preparation: XXII. Selection of Quiescent Galaxies from Mock Photometry using Machine Learning

Euclid Collaboration, A. Humphrey, L. Bisigello +206

The Euclid Space Telescope will provide deep imaging at optical and near-infrared wavelengths, along with slitless near-infrared spectroscopy, across ~15,000 sq deg of the sky. Euc…