Conveners
The Euclid mission: current status, results from early observations, and future prospects: Tuesday block 1
- Gianluca Polenta (Italian Space Agency)
- Marina Migliaccio (University of Rome Tor Vergata)
The Euclid mission: current status, results from early observations, and future prospects: Tuesday block 2
- Marina Migliaccio (University of Rome Tor Vergata)
- Gianluca Polenta (Italian Space Agency)
Description
The ESA Euclid mission is dedicated to investigate the nature of dark matter and dark energy. By observing billions of galaxies at visible and near-infrared wavelengths across one third of the sky, Euclid will explore how large-scale structures have formed and evolved over the last 10 billion years during the accelerated expansion of the Universe. Following a successful launch on July 1st, 2023, and the subsequent commissioning and performance verification of the VIS and NISP instruments on-board the satellite, Euclid has started its nominal 6-year science program. This session will aim at providing an overview of the current status of the Euclid mission and the performance of its instruments, presenting early findings obtained from the Early Release Observations, and discussing prospects for future results.
The ESA Euclid mission will conduct an extragalactic survey over about 14 000 deg2 of extragalactic sky. The two instruments onboard, VIS and the Near-Infrared Spectrometer and Photometer (NISP), will provide high-resolution optical imaging, as well as near-infrared imaging and spectroscopy over the survey footprint. In addition to accurate weak lensing and clustering measurements that probe...
ESA's mission Euclid launched in July 2023 was fully commissioned and since early 2024 is performing its nominal survey. Euclid performs an extra galactic survey (0<z<2) using visible and near-infrared light. To detect infrared radiation is equipped with the Near-Infrared Spectro-Photometer (NISP) instrument sensible in the 0.9-2 µm range. The NISP instrument will be extensively described,...
The contribution is focused on the description of the VIS instrument onboard the ESA Euclid mission. VIS is a large optical-band imager with a field of view of 0.54 deg^2 and a spatial resolution of 0.18". It will be used to survey approximately 14,000 deg^2 of extragalactic sky to measure the distortion of galaxies in the redshift range z=0.1-1.5 resulting from weak gravitational lensing, one...
The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main components, dark matter and dark energy, remains unknown. The Euclid mission will provide high-resolution optical imaging, along with near-infrared imaging and spectroscopy, covering approximately 14,000 square degrees of extragalactic sky. Euclid is optimized for two powerful...
For galaxy clustering, constraining cosmological parameters using the three-point correlation function, despite being pivotal, has historically been limited by the computational cost of modelling. Here, we introduce a new emulator developed within the framework of a Euclid Preparation Key-Project activity, which substantially accelerates MCMC evaluation. For the first time in a simulation...
The future Euclid space satellite mission will offer an invaluable opportunity to constrain modifications to general relativity at cosmic scales.I will present forecasts for extended cosmological scenarios such as k-mouflage gravity and the Transitional Planck Mass model, considering spectroscopic and photometric primary probes by Euclid alone and in combination with other probes. In...
Euclid is an ESA survey mission designed to understand the origin of the Universe's accelerating expansion using weak gravitational lensing and redshift clustering as main probes. Very high image quality is required for galaxy shape measurements, while accurate photometry at visible and near-infrared wavelengths and near-infrared spectroscopy are needed to measure photometric and spectroscopic...
I will present recent lensing results in the massive lensing cluster A2390 which has been observed as part of the Euclid Early Release Observations. The goal is to showcase the weak and strong lensing capabilities of the imaging data of the Euclid satellite.
In the era of big data, developing robust methods for the autonomous extraction of information from vast multi-dimensional datasets is pivotal. This work focuses on utilizing a region-based convolutional neural network (Mask R-CNN) to automatically detect bright arcs produced by strong gravitational lensing in galaxy clusters, specifically for the upcoming Euclid survey. These kinds of events...
