B. Garilli
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View article: Euclid preparation. LXXIV. Euclidised observations of Hubble Frontier Fields and CLASH galaxy clusters
Euclid preparation. LXXIV. Euclidised observations of Hubble Frontier Fields and CLASH galaxy clusters Open
We present ̋S, a novel Python code to generate Euclid realistic mock images in the ̋E and photometric bands based on panchromatic Hubble Space Telescope observations. The software was used to create a simulated database of Euclid images for …
View article: The HST-Hyperion Survey: Grism Observations of a <i>z</i> ∼ 2.5 Protosupercluster
The HST-Hyperion Survey: Grism Observations of a <i>z</i> ∼ 2.5 Protosupercluster Open
We present the first results and catalogs from the HST-Hyperion survey. This survey has collected 50 orbits of WFC3/F160W imaging and WFC3/G141 grism spectroscopy in the most overdense regions of the Hyperion protosupercluster at z ∼ 2.45,…
View article: <i>Euclid</i> preparation
<i>Euclid</i> preparation Open
The Cosmic Dawn Survey (DAWN survey) provides multiwavelength (UV/optical to mid-IR) data across the combined 59 deg 2 of the Euclid Deep and Auxiliary fields (EDFs and EAFs). In this work, the first public data release from the DAWN surve…
View article: Discovering Large-scale Structure at 2 < z < 5 in the C3VO Survey
Discovering Large-scale Structure at 2 < z < 5 in the C3VO Survey Open
The Charting Cluster Construction with VUDS and ORELSE (C3VO) survey is an ongoing imaging and spectroscopic campaign aiming to map out the growth of structure up to z ∼ 5 and was born from the combination of the Visible Multi-Object Spect…
View article: <i>Euclid</i>: High-precision imaging astrometry and photometry from Early Release Observations
<i>Euclid</i>: High-precision imaging astrometry and photometry from Early Release Observations Open
The instruments at the focus of the Euclid space observatory offer superb, diffraction-limited imaging over an unprecedented (from space) wide field of view of 0.57 deg 2 . This exquisite image quality has the potential to produce high-pre…
View article: Euclid: High-precision imaging astrometry and photometry from Early Release Observations. I. Internal kinematics of NGC 6397 by combining Euclid and Gaia data
Euclid: High-precision imaging astrometry and photometry from Early Release Observations. I. Internal kinematics of NGC 6397 by combining Euclid and Gaia data Open
The instruments at the focus of the Euclid space observatory offer superb, diffraction-limited imaging over an unprecedented (from space) wide field of view of 0.57 deg$^2$. This exquisite image quality has the potential to produce high-pr…
View article: Discovering Large-Scale Structure at $2
Discovering Large-Scale Structure at $2 Open
The Charting Cluster Construction with VUDS and ORELSE (C3VO) survey is an ongoing imaging and spectroscopic campaign aiming to map out the growth of structure up to $z\sim5$ and was born from the combination of the Visible Multi-Object Sp…
View article: Euclid preparation: 6x2 pt analysis of Euclid's spectroscopic and photometric data sets
Euclid preparation: 6x2 pt analysis of Euclid's spectroscopic and photometric data sets Open
We present cosmological parameter forecasts for the Euclid 6x2pt statistics, which include the galaxy clustering and weak lensing main probes together with previously neglected cross-covariance and cross-correlation signals between imaging…
View article: <i>Euclid</i>: Early Release Observations – Globular clusters in the Fornax galaxy cluster, from dwarf galaxies to the intracluster field
<i>Euclid</i>: Early Release Observations – Globular clusters in the Fornax galaxy cluster, from dwarf galaxies to the intracluster field Open
We present an analysis of Euclid observations of a 0.6 deg 2 field in the central region of the Fornax galaxy cluster that were acquired during the performance verification phase. With these data, we investigated the potential of Euclid to…
View article: Performance of the image persistence model for Euclid infrared detectors
Performance of the image persistence model for Euclid infrared detectors Open
Large-format infrared detectors are at the heart of major ground and space-based astronomical instruments, and the HgCdTe HxRG is the most widely used. The Near Infrared Spectrometer and Photometer (NISP) of the ESA’s Euclid mission launch…
View article: Enhanced AGN Activity in Overdense Galactic Environments at $2 < z < 4$
Enhanced AGN Activity in Overdense Galactic Environments at $2 < z < 4$ Open
We conduct a study on the relationship between galaxy environments and their active galactic nuclei (AGN) activity at high redshifts ($2.010^{12.8}M_\odot$) overdense ($σ_δ>5.0$) peak, normalized with respect to the size of the peak. These…
View article: <i>Euclid</i> preparation
<i>Euclid</i> preparation Open
The Euclid mission is expected to image millions of galaxies at high resolution, providing an extensive dataset with which to study galaxy evolution. Because galaxy morphology is both a fundamental parameter and one that is hard to determi…
View article: Euclid preparation. XLIX. Selecting active galactic nuclei using observed colours
Euclid preparation. XLIX. Selecting active galactic nuclei using observed colours Open
Euclid will cover over 14000 $deg^{2}$ with two optical and near-infrared spectro-photometric instruments, and is expected to detect around ten million active galactic nuclei (AGN). This unique data set will make a considerable impact on o…
View article: WST - Widefield Spectroscopic Telescope: motivation, science drivers and top level requirements for a new dedicated facility
WST - Widefield Spectroscopic Telescope: motivation, science drivers and top level requirements for a new dedicated facility Open
In this paper, we describe the wide-field spectroscopic survey telescope (WST) project. WST is a 12-metre wide-field spectroscopic survey telescope with simultaneous operation of a large field-of-view (3 sq. degree), high-multiplex (20,000…
View article: <i>Euclid</i> preparation
<i>Euclid</i> preparation Open
The Euclid space mission will cover over 14 000 deg 2 with two optical and near-infrared spectro-photometric instruments, and is expected to detect around ten million active galactic nuclei (AGN). This unique data set will make a considera…
View article: <i>Euclid</i>: Early Release Observations – Deep anatomy of nearby galaxies
<i>Euclid</i>: Early Release Observations – Deep anatomy of nearby galaxies Open
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 Release Observations acqu…
View article: <i>Euclid</i>: Early Release Observations – A glance at free-floating newborn planets in the σ Orionis cluster
<i>Euclid</i>: Early Release Observations – A glance at free-floating newborn planets in the σ Orionis cluster Open
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 open clusters, and in particular, to determine to which extent it can shed light i…
View article: Euclid Preparation. Cosmic Dawn Survey: Data release 1 multiwavelength catalogues for Euclid Deep Field North and Euclid Deep Field Fornax
Euclid Preparation. Cosmic Dawn Survey: Data release 1 multiwavelength catalogues for Euclid Deep Field North and Euclid Deep Field Fornax Open
The Cosmic Dawn Survey (DAWN survey) provides multiwavelength (UV/optical to mid-IR) data across the combined 59 deg$^{2}$ of the Euclid Deep and Auxiliary fields (EDFs and EAFs). Here, the first public data release (DR1) from the DAWN sur…
View article: <i>Euclid</i>
<i>Euclid</i> Open
The Near-Infrared Spectrometer and Photometer (NISP) on board the Euclid satellite provides multiband photometry and R ≳ 450 slitless grism spectroscopy in the 950–2020 nm wavelength range. In this reference article, we illuminate the back…
View article: WST: Widefield Spectroscopic Telescope: addressing the instrumentation challenges of a new 12m class telescope dedicated to widefield multi-object and integral field spectroscopy
WST: Widefield Spectroscopic Telescope: addressing the instrumentation challenges of a new 12m class telescope dedicated to widefield multi-object and integral field spectroscopy Open
International audience
View article: Euclid commissioning results: the near infrared spectrometer and photometer (NISP) signal detection chain
Euclid commissioning results: the near infrared spectrometer and photometer (NISP) signal detection chain Open
Euclid, the M2 mission of the ESA’s Cosmic Vision 2015-2025 program, aims to explore the Dark Universe by conducting a survey of approximately 14 000 deg2 and creating a 3D map of the observable Universe of around 1.5 billion galaxies up t…
View article: <i>Euclid</i>: Early Release Observations – Unveiling the morphology of two Milky Way globular clusters out to their periphery
<i>Euclid</i>: Early Release Observations – Unveiling the morphology of two Milky Way globular clusters out to their periphery Open
As part of the Euclid Early Release Observations (ERO) programme, we analysed deep, wide-field imaging from the VIS and NISP instruments of two Milky Way globular clusters (GCs), namely NGC 6254 (M10) and NGC 6397, to look for observationa…
View article: WST -- Widefield Spectroscopic Telescope: addressing the instrumentation challenges of a new 12m class telescope dedicated to widefield Multi-object and Integral Field Spectroscopy
WST -- Widefield Spectroscopic Telescope: addressing the instrumentation challenges of a new 12m class telescope dedicated to widefield Multi-object and Integral Field Spectroscopy Open
WST - Widefield Spectroscopic Telescope: We summarise the design challenges of instrumentation for a proposed 12m class Telescope that aims to provide a large (>2.5 square degree) field of view and enable simultaneous Multi-object (> 20,00…
View article: Euclid: Early Release Observations -- Globular clusters in the Fornax galaxy cluster, from dwarf galaxies to the intracluster field
Euclid: Early Release Observations -- Globular clusters in the Fornax galaxy cluster, from dwarf galaxies to the intracluster field Open
We present an analysis of Euclid observations of a 0.5 deg$^2$ field in the central region of the Fornax galaxy cluster that were acquired during the performance verification phase. With these data, we investigate the potential of Euclid f…
View article: Euclid: Early Release Observations -- Dwarf galaxies in the Perseus galaxy cluster
Euclid: Early Release Observations -- Dwarf galaxies in the Perseus galaxy cluster Open
We make use of the unprecedented depth, spatial resolution, and field of view of the Euclid Early Release Observations of the Perseus galaxy cluster to detect and characterise the dwarf galaxy population in this massive system. The Euclid …
View article: WST -- Widefield Spectroscopic Telescope: Motivation, science drivers and top-level requirements for a new dedicated facility
WST -- Widefield Spectroscopic Telescope: Motivation, science drivers and top-level requirements for a new dedicated facility Open
In this paper, we describe the wide-field spectroscopic survey telescope (WST) project. WST is a 12-metre wide-field spectroscopic survey telescope with simultaneous operation of a large field-of-view (3 sq. degree), high-multiplex (20,000…
View article: <i>Euclid</i> preparation
<i>Euclid</i> preparation Open
Precise and accurate mass calibration is required to exploit galaxy clusters as astrophysical and cosmological probes in the Euclid era. Systematic errors in lensing signals by galaxy clusters can be empirically estimated by comparing diff…
View article: The Wide-field Spectroscopic Telescope (WST) Science White Paper
The Wide-field Spectroscopic Telescope (WST) Science White Paper Open
The Wide-field Spectroscopic Telescope (WST) is proposed as a new facility dedicated to the efficient delivery of spectroscopic surveys. This white paper summarises the initial concept as well as the corresponding science cases. WST will f…
View article: <i>Euclid</i>: Identifying the reddest high-redshift galaxies in the <i>Euclid</i> Deep Fields with gradient-boosted trees
<i>Euclid</i>: Identifying the reddest high-redshift galaxies in the <i>Euclid</i> Deep Fields with gradient-boosted trees Open
Context. ALMA observations show that dusty, distant, massive ( M * ≳ 10 11 M ⊙ ) galaxies usually have a remarkable star-formation activity, contributing of the order of 25% of the cosmic star-formation rate density at z ≈ 3–5, and up to 3…
View article: Euclid Spectroscopic Image Simulations and Reconstruction
Euclid Spectroscopic Image Simulations and Reconstruction Open
Parallel Talk presented at the XX International Workshop on Neutrino Telescopes - Venice 23-27 October 2023 Abstract: Euclid is a European Space Agency (ESA) mission, designed to investigate the nature of Dark Energy and Dark Matter. It wi…