F Pasian

Euclid

K. Paterson, M Schirmer, K. Okumura, Bram P. Venemans et autres

The Near-Infrared Spectrometer and Photometer (NISP) on board Euclid includes several optical elements in its path that introduce artefacts into the data from non-nominal light paths. To ensure uncontaminated source photometry, these artefacts must be accurately accounted for. This paper focuses on …

de, fr, nl, us, gb, it, pt, es, cz, ch, no, dk, fi (code pays fourni par la source)

Euclid preparation. XCVI. Cosmology Likelihood for Observables in Euclid (CLOE). 3. Inference and Forecasts

G Cañas-Herrera, L Blot, Marco Bonici, S Camera et autres

The Euclid mission aims to measure the positions, shapes, and redshifts of over a billion galaxies to provide unprecedented constraints on the nature of dark matter and dark energy. Achieving this goal requires a continuous reassessment of the mission's scientific performance, particularly …

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Euclid preparation. XCVIII. Cosmology Likelihood for Observables in Euclid (CLOE). 5: Extensions beyond the standard modelling of theoretical probes and systematic effects

A Nouri-Zonoz, S Pamuk, M Ballardini, Benjamin Bose et autres

Euclid is expected to establish new state-of-the-art constraints on extensions beyond the standard LCDM cosmological model by measuring the positions and shapes of billions of galaxies. Specifically, its goal is to shed light on the nature of dark matter and dark energy. …

fr (code pays fourni par la source)

Euclid preparation. XCI. Validation method for the detections in the Euclid Catalogue of Galaxy Clusters using external data

Alex Widmer, Paula Tarrío, T. Sadibekova, M. Arnaud et autres

We present our methodology for identifying known clusters as counterparts to objects in the Euclid Catalogue of Galaxy Clusters (ECGC). Euclid is expected to detect a large number of optically-selected galaxy clusters over the approximately 14000 square degrees of its extragalactic sky …

fr, us, es, fi, it, ch, no, dk, de (code pays fourni par la source)

Euclid : Finding strong gravitational lenses in the early release observations using convolutional neural networks

B.C Nagam, J.A. Acevedo Barroso, Jane Francesca Wilde, I.T Andika et autres

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 and dark energy, …

us, nl, sk, ch, es, de, gb, it, ca, fr, jp, pt, in, no (code pays fourni par la source)

Euclid Quick Data Release (Q1): A photometric search for ultracool dwarfs in the Euclid Deep Fields

M. Žerjal, Carlos Domínguez-Tagle, N. Vitas, N Sedighi et autres

International audience

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Euclid Quick Data Release (Q1). The first Euclid view of Planck galaxy protocluster candidates at cosmic noon

Tanguy DUSSERRE, H. Dole, Florian Sarron, G Castignani et autres

[ABRIGED ABSTRACT] A large catalogue of candidate galaxy protoclusters with high star-formation rates was produced by the Planck collaboration. We search, in the first data release (Q1) of the Euclid survey, for the visible and infrared counterparts of the Planck galaxy protocluster …

fi, fr, us, es, de, nl (code pays fourni par la source)

Euclid Quick Data Release (Q1). NIR processing and data products

G Polenta, Amir H. Alavi, Pierre Awad, R. J. Bouwens et autres

This paper describes the near-infrared processing function (NIR PF) that processes near-infrared images from the Near-Infrared Spectrometer and Photometer (NISP) instrument onboard the Euclid satellite. NIR PF consists of three main components: (i) a common pre-processing stage for both photometric (NIR) and …

fr (code pays fourni par la source)

Euclid preparation

M.Y Elkhashab, Daniele Bertacca, C. Porciani, J. Salvalaggio et autres

Measurements of galaxy clustering are affected by redshift-space distortions (RSDs). Peculiar velocities, gravitational lensing, and other light-cone projection effects modify the observed redshifts, fluxes, and sky positions of distant light sources. We determined which of these effects leave a detectable imprint on …

Euclid: Finding strong gravitational lenses in the Early Release Observations using convolutional neural networks

B.C Nagam, J.A. Acevedo Barroso, Jane Francesca Wilde, I.T Andika et autres

The Early Release Observations (ERO) from Euclid have detected several new galaxy-galaxy strong gravitational lenses, with the all-sky survey expected to find 170,000 new systems, greatly enhancing studies of dark matter, dark energy, and constraints on the cosmological parameters. As a first …

fr (code pays fourni par la source)

Euclid preparation LXXVIII - Full-shape modelling of two-point and three-point correlation functions in real space

M Guidi, Alfonso Veropalumbo, A. Pugno, M. Moresco et autres

We investigate the accuracy and range of validity of the perturbative model for the 2-point (2PCF) and 3-point (3PCF) correlation functions in real space in view of the forthcoming analysis of the Euclid mission spectroscopic sample. We take advantage of clustering measurements …

fr (code pays fourni par la source)

Euclid preparation: XVI. Exploring the ultra low-surface brightness Universe with Euclid/VIS

A. S. Borlaff, P. Gómez-Alvarez, R. Vavrek, R. Laureijs et autres

While Euclid is an ESA mission specifically designed to investigate the nature of Dark Energy and Dark Matter, the planned unprecedented combination of survey area ($\sim15\,000$ deg$^2$), spatial resolution, low sky-background, and depth also make Euclid an excellent space observatory for the …