Search Results - "Reimberg, P"
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Back in the saddle: large-deviation statistics of the cosmic log-density field
Published in Monthly notices of the Royal Astronomical Society (01-08-2016)“…We present a first principle approach to obtain analytical predictions for spherically averaged cosmic densities in the mildly non-linear regime that go well…”
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Failures of Halofit model for computation of Fisher matrices: a response function analysis
Published in Monthly notices of the Royal Astronomical Society (2020)“…ABSTRACT The response function of a linear system undergoing a non-linear transformation measures the sensitivity of the non-linear output with respect to the…”
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Euclid preparation – XXIII. Derivation of galaxy physical properties with deep machine learning using mock fluxes and H-band images
Published in Monthly notices of the Royal Astronomical Society (15-02-2023)“…ABSTRACT Next-generation telescopes, like Euclid, Rubin/LSST, and Roman, will open new windows on the Universe, allowing us to infer physical properties for…”
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Failures of Halofit model for computation of Fisher Matrices
Published 07-11-2018“…We use a simple cosmological model with two parameters $(A_s, n_s)$ to illustrate the impact of using Halofit on error forecast based on Fisher information…”
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Euclid preparation: XLVIII. The pre-launch Science Ground Segment simulation framework
Published 09-10-2024“…A&A 690, A103 (2024) The European Space Agency's Euclid mission is one of the upcoming generation of large-scale cosmology surveys, which will map the…”
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Euclid preparation. The impact of relativistic redshift-space distortions on two-point clustering statistics from the Euclid wide spectroscopic survey
Published 01-10-2024“…Measurements of galaxy clustering are affected by RSD. Peculiar velocities, gravitational lensing, and other light-cone projection effects modify the observed…”
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Euclid preparation. XLIII. Measuring detailed galaxy morphologies for Euclid with machine learning
Published 20-09-2024“…A&A 689, A274 (2024) The Euclid mission is expected to image millions of galaxies with high resolution, providing an extensive dataset to study galaxy…”
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Euclid preparation. Simulations and nonlinearities beyond $\Lambda$CDM. 1. Numerical methods and validation
Published 05-09-2024“…To constrain models beyond $\Lambda$CDM, the development of the Euclid analysis pipeline requires simulations that capture the nonlinear phenomenology of such…”
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Euclid preparation. Simulations and nonlinearities beyond $\Lambda$CDM. 2. Results from non-standard simulations
Published 05-09-2024“…The Euclid mission will measure cosmological parameters with unprecedented precision. To distinguish between cosmological models, it is essential to generate…”
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Euclid preparation. Simulations and nonlinearities beyond $\Lambda$CDM. 4. Constraints on $f(R)$ models from the photometric primary probes
Published 05-09-2024“…We study the constraint on $f(R)$ gravity that can be obtained by photometric primary probes of the Euclid mission. Our focus is the dependence of the…”
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Euclid preparation. Angular power spectra from discrete observations
Published 29-08-2024“…We present the framework for measuring angular power spectra in the Euclid mission. The observables in galaxy surveys, such as galaxy clustering and cosmic…”
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Euclid preparation. The Cosmic Dawn Survey (DAWN) of the Euclid Deep and Auxiliary Fields
Published 09-08-2024“…Euclid will provide deep NIR imaging to $\sim$26.5 AB magnitude over $\sim$59 deg$^2$ in its deep and auxiliary fields. The Cosmic DAWN survey complements the…”
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Euclid Preparation. Cosmic Dawn Survey: Data release 1 multiwavelength catalogues for Euclid Deep Field North and Euclid Deep Field Fornax
Published 09-08-2024“…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…”
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Euclid preparation. Sensitivity to non-standard particle dark matter model
Published 26-06-2024“…The Euclid mission of the European Space Agency will provide weak gravitational lensing and galaxy clustering surveys that can be used to constrain the…”
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Euclid preparation. Detecting globular clusters in the Euclid survey
Published 22-05-2024“…Extragalactic globular clusters (EGCs) are an abundant and powerful tracer of galaxy dynamics and formation, and their own formation and evolution is also a…”
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Euclid. V. The Flagship galaxy mock catalogue: a comprehensive simulation for the Euclid mission
Published 22-05-2024“…We present the Flagship galaxy mock, a simulated catalogue of billions of galaxies designed to support the scientific exploitation of the Euclid mission…”
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Euclid preparation. Sensitivity to neutrino parameters
Published 09-05-2024“…The Euclid mission of the European Space Agency will deliver weak gravitational lensing and galaxy clustering surveys that can be used to constrain the…”
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Euclid preparation. LIII. LensMC, weak lensing cosmic shear measurement with forward modelling and Markov Chain Monte Carlo sampling
Published 01-05-2024“…LensMC is a weak lensing shear measurement method developed for Euclid and Stage-IV surveys. It is based on forward modelling in order to deal with convolution…”
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Euclid preparation. XLII. A unified catalogue-level reanalysis of weak lensing by galaxy clusters in five imaging surveys
Published 11-04-2024“…Precise and accurate mass calibration is required to exploit galaxy clusters as astrophysical and cosmological probes in the Euclid era. Systematic errors in…”
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Euclid Preparation XXXIII. Characterization of convolutional neural networks for the identification of galaxy-galaxy strong lensing events
Published 26-01-2024“…Astronomy & Astrophysics,2024, 681, A68 Forthcoming imaging surveys will potentially increase the number of known galaxy-scale strong lenses by several orders…”
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