A5095777521- Cosmology and Gravitation Theories
- Particle physics theoretical and experimental studies
- Astronomy and Astrophysical Research
- Optical Polarization and Ellipsometry
- Galaxies: Formation, Evolution, Phenomena
- Solar and Space Plasma Dynamics
- Neutrino Physics Research
- Astro and Planetary Science
- Geomagnetism and Paleomagnetism Studies
- Dark Matter and Cosmic Phenomena
- Geophysics and Gravity Measurements
- Historical Astronomy and Related Studies
- Surface and Thin Film Phenomena
- Biblical Studies and Interpretation
- Advancements in Photolithography Techniques
- Stellar, planetary, and galactic studies
- Historical and Architectural Studies
We study the constraint on f(R) gravity that can be obtained by photometric primary probes of Euclid mission. Our focus is dependence theoretical modelling nonlinear matter power spectrum. In Hu--Sawicki model, we consider four different predictions for ratio between spectrum in and Λ cold dark (ΛCDM): a fitting formula, halo model reaction approach two emulators based only N -body simulations . These are added to implementation predict angular spectra weak lensing (WL), galaxy clustering,...
Context. The Euclid mission of the European Space Agency will deliver weak gravitational lensing and galaxy clustering surveys that can be used to constrain standard cosmological model extensions thereof. Aims. We present forecasts from combination photometric (weak lensing, clustering, their cross-correlations) its spectroscopic redshift survey with respect sensitivity parameters. include summed neutrino mass, ∑ m ν , effective number relativistic species, N eff in ΛCDM scenario dynamical...
The Euclid mission of the European Space Agency will deliver weak gravitational lensing and galaxy clustering surveys that can be used to constrain standard cosmological model extensions thereof. We present forecasts from combination these on sensitivity parameters including summed neutrino mass $M_\nu$ effective number relativistic species $N_{\rm eff}$ in $\Lambda$CDM scenario a with dynamical dark energy ($w_0 w_a$CDM). compare accuracy different algorithms predicting nonlinear matter...
Abstract We forecast constraints on minimal model-independent parametrisations of several Modified Gravity theories using mock Stage-IV cosmic shear data. include nonlinear effects and screening, which ensures recovery General Relativity small scales. introduce a power spectrum emulator to accelerate our analysis evaluate the robustness growth index parametrisation with respect two cosmologies: ΛCDM normal branch DGP model. uncertainties γ be order ∼ 10%. find that halo-model based screening...
We forecast constraints on minimal model-independent parametrisations of several Modified Gravity theories using mock Stage-IV cosmic shear data. include nonlinear effects and screening, which ensures recovery General Relativity small scales. introduce a power spectrum emulator to accelerate our analysis evaluate the robustness growth index parametrisation with respect two cosmologies: $\Lambda$CDM normal branch DGP model. uncertainties $\gamma$ be order $\sim 10\%$. find that halo-model...
We study the constraint on $f(R)$ gravity that can be obtained by photometric primary probes of Euclid mission. Our focus is dependence theoretical modelling nonlinear matter power spectrum. In Hu-Sawicki model, we consider four different predictions for ratio between spectrum in and $\Lambda$CDM: a fitting formula, halo model reaction approach, ReACT two emulators based dark only $N$-body simulations, FORGE e-Mantis. These are added to MontePython implementation predict angular spectra weak...