Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Carrilho, Pedro"'
Autor:
Tsedrik, Maria, Bose, Benjamin, Carrilho, Pedro, Pourtsidou, Alkistis, Pamuk, Sefa, Casas, Santiago, Lesgourgues, Julien
We forecast constraints on minimal model-independent parametrisations of several Modified Gravity theories using mock Stage-IV cosmic shear data. We include nonlinear effects and screening, which ensures recovery of General Relativity on small scales
Externí odkaz:
http://arxiv.org/abs/2404.11508
Autor:
Carrion, Karim, Carrilho, Pedro, Mancini, Alessio Spurio, Pourtsidou, Alkistis, Hidalgo, Juan Carlos
We present constraints on the Dark Scattering model through cosmic shear measurements from the Kilo Degree Survey (KiDS-1000), using an accelerated pipeline with novel emulators produced with $\tt{CosmoPower}$. Our main emulator, for the Dark Scatter
Externí odkaz:
http://arxiv.org/abs/2402.18562
The current discrepancy between the CMB and weak lensing measurements of the amplitude of matter fluctuations, the so-called $S_8$ tension, has attracted a great deal of recent attention, as it may show a crack in the $\Lambda$CDM model of cosmology.
Externí odkaz:
http://arxiv.org/abs/2310.07344
Publikováno v:
JCAP12(2023)025
We constrain the growth index $\gamma$ by performing a full-shape analysis of the power spectrum multipoles measured from the BOSS DR12 data. We adopt a theoretical model based on the Effective Field theory of the Large Scale Structure (EFTofLSS) and
Externí odkaz:
http://arxiv.org/abs/2306.09275
We analyse the BOSS DR12 galaxy power spectrum data jointly with BAO data for three models of dark energy. We use recent measurements using a windowless estimator, and an independent and fast pipeline based on EFTofLSS implemented via the FAST-PT alg
Externí odkaz:
http://arxiv.org/abs/2207.14784
Interacting dark energy models have been suggested as alternatives to the standard cosmological model, $\Lambda$CDM. We focus on a phenomenologically interesting class of dark scattering models that is characterised by pure momentum exchange between
Externí odkaz:
http://arxiv.org/abs/2207.13011
Publikováno v:
Class. Quantum Grav. 39 (2022) 063001
We review the topic of 4D Einstein-Gauss-Bonnet gravity, which has been the subject of considerable interest over the past two years. Our review begins with a general introduction to Lovelock's theorem, and the subject of Gauss-Bonnet terms in the ac
Externí odkaz:
http://arxiv.org/abs/2202.13908
Autor:
Carrilho, Pedro, Carrion, Karim, Bose, Benjamin, Pourtsidou, Alkistis, Hidalgo, Juan Carlos, Lombriser, Lucas, Baldi, Marco
Understanding nonlinear structure formation is crucial for fully exploring the data generated by stage IV surveys, requiring accurate modelling of the power spectrum. This is challenging for deviations from $\Lambda$CDM, but we must ensure that alter
Externí odkaz:
http://arxiv.org/abs/2111.13598
Publikováno v:
JCAP06(2022)019
Working in an idealised framework in which a series of phases of evolution defined by the second slow-roll parameter $\eta$ are matched together, we calculate the reduced bispectrum, $f_{\rm NL}$, for models of inflation with a large peak in their pr
Externí odkaz:
http://arxiv.org/abs/2110.08189
Publikováno v:
Phys. Rev. D 104, 044029 (2021)
In this work we study static black holes in the regularized 4D Einstein-Gauss-Bonnet theory of gravity; a shift-symmetric scalar-tensor theory that belongs to the Horndeski class. This theory features a simple black hole solution that can be written
Externí odkaz:
http://arxiv.org/abs/2107.00046