We report the discovery of a complete Einstein ring around the elliptical galaxy NGC 6505, at z = 0.042. This is the first strong gravitational lens discovered...
Euclid: Constraining dark energy coupled to electromagnetism using astrophysical and laboratory data
In physically realistic, scalar-field-based dynamical dark energy models (including, e.g., quintessence), one naturally expects the scalar field to couple to...
Euclid: Cosmological forecasts from the void size function
The Euclid mission - with its spectroscopic galaxy survey covering a sky area over 15 000 deg 2 in the redshift range 0.9 < z < 1.8 - will provide a sample of...
Euclid: Cosmology forecasts from the void-galaxy cross-correlation function with reconstruction
We have investigated the cosmological constraints that can be expected from measurement of the cross-correlation of galaxies with cosmic voids identified in the...
Euclid: Early Release Observations – A glance at free-floating newborn planets in the σ Orionis cluster
We provide an early assessment of the imaging capabilities of the Euclid space mission to deeply probe nearby star-forming regions and associated very young...
Euclid: Forecasts from redshift-space distortions and the Alcock-Paczynski test with cosmic voids
Euclid is poised to survey galaxies across a cosmological volume of unprecedented size, providing observations of more than a billion objects distributed over a...
The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy...
The Near-Infrared Spectrometer and Photometer (NISP) on board the Euclid satellite provides multiband photometry and R ≳ 450 slitless grism spectroscopy in the...
Euclid: Searches for strong gravitational lenses using convolutional neural nets in Early Release Observations of the Perseus field
The Euclid Wide Survey (EWS) is predicted to find approximately 170 000 galaxy-galaxy strong lenses from its lifetime observation of 14 000 deg 2 of the sky...