Search Results - "Fiorini, Bartolomeo"
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1
Testing Gravity on Cosmological Scales : Theoretical Predictions with the Cola Method
Published 01-01-2023“…The standard model of cosmology based on general relativity needs a dark energy component in the cosmic inventory to successfully describe the accelerated…”
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Dissertation -
2
Testing Gravity on Cosmological Scales: Theoretical Predictions with the COLA Method
Published 10-03-2023“…One of the main objectives of stage IV galaxy surveys is to constrain gravity on cosmological scales. To this end, it is crucial to make accurate theoretical…”
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Journal Article -
3
Large scale structure prior knowledge in the dark siren method
Published 04-10-2024“…Gravitational wave dark sirens are a powerful tool for cosmology and inference of compact object population hyperparameters. They allow for a measurement of…”
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Journal Article -
4
K-mouflage at high k: extending the reach of $\texttt{Hi-COLA}
Published 30-06-2024“…The $\texttt{Hi-COLA}$ code is an efficient dark matter simulation suite that flexibly handles the Horndeski family of modified gravity models. In this work we…”
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Journal Article -
5
Fast production of cosmological emulators in modified gravity: the matter power spectrum
Published 09-10-2023“…We test the convergence of fast simulations based on the COmoving Lagrangian Acceleration (COLA) method for predictions of the matter power spectrum,…”
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Journal Article -
6
Studying large-scale structure probes of modified gravity with COLA
Published 21-11-2022“…We study the effect of two Modified Gravity (MG) theories, $f(R)$ and nDGP, on three probes of large-scale structure, the real space power spectrum estimator…”
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Journal Article -
7
The Stability of the BAO Linear Point under Modified Gravity
Published 13-06-2024“…Baryon Acoustic Oscillations (BAOs) are crucial in cosmological analysis, providing a standard ruler, as well as constraints on dark energy. In General…”
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Journal Article -
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Cosmic variance of $H_0$ in light of forthcoming high-redshift surveys
Published 24-02-2021“…Phys. Rev. D 104, 083506 (2021) Forthcoming surveys will extend the understanding of cosmological large scale structures up to unprecedented redshift…”
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Journal Article -
9
Enabling matter power spectrum emulation in beyond-$\Lambda$CDM cosmologies with COLA
Published 21-03-2022“…We compare and validate COLA (COmoving Lagrangian Acceleration) simulations against existing emulators in the literature, namely Bacco and Euclid Emulator 2…”
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Journal Article -
10
Matter Power Spectra in Modified Gravity: A Comparative Study of Approximations and $N$-Body Simulations
Published 19-06-2024“…Testing gravity and the concordance model of cosmology, $\Lambda$CDM, at large scales is a key goal of this decade's largest galaxy surveys. Here we present a…”
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Journal Article -
11
texttt{Hi-COLA}$: Fast, approximate simulations of structure formation in Horndeski gravity
Published 04-09-2022“…JCAP03(2023)040 We introduce $\texttt{Hi-COLA}$, a code designed to run fast, approximate $\textit{N}$-body simulations of non-linear structure formation in…”
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Journal Article -
12
Fast generation of mock galaxy catalogues in modified gravity models with COLA
Published 23-08-2021“…JCAP09(2021)021 We investigate the viability of producing galaxy mock catalogues with COmoving Lagrangian Acceleration (COLA) simulations in Modified Gravity…”
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Journal Article