Zobrazeno 1 - 10
of 1 059
pro vyhledávání: '"de Cruz, P."'
We study the performance of the spatially-flat dynamical dark energy (DE) $w_0w_a$CDM parameterization, with redshift-dependent DE fluid equation of state parameter $w(z) = w_0 + w_a z/(1+z)$, with and without a varying CMB lensing consistency parame
Externí odkaz:
http://arxiv.org/abs/2410.13627
Deep neural networks (DNNs) have demonstrated remarkable performance across various domains, yet their application to temporal graph regression tasks faces significant challenges regarding interpretability. This critical issue, rooted in the inherent
Externí odkaz:
http://arxiv.org/abs/2409.10996
We use a combination of Planck cosmic microwave background (CMB) anisotropy data and non-CMB data that include Pantheon+ type Ia supernovae (SNIa), Hubble parameter [$H(z)$], growth factor ($f\sigma_8$) measurements, and a collection of baryon acoust
Externí odkaz:
http://arxiv.org/abs/2405.00502
We study 6 LCDM models, with 4 allowing for non-flat geometry and 3 allowing for a non-unity lensing consistency parameter $A_L$. We also study 6 XCDM models with a dynamical dark energy density X-fluid with equation of state $w$. For the non-flat mo
Externí odkaz:
http://arxiv.org/abs/2404.19194
Autor:
De Paepe, Geert, De Cruz, Lesley
In meteorology, finding similar weather patterns or analogs in historical datasets can be useful for data assimilation, forecasting, and postprocessing. In climate science, analogs in historical and climate projection data are used for attribution an
Externí odkaz:
http://arxiv.org/abs/2404.18314
In drylands, water availability determines plant population densities and whether they cooperate via facilitation or compete. When water scarcity intensifies, plant densities decrease and competition for water surpasses the benefits of soil improveme
Externí odkaz:
http://arxiv.org/abs/2404.02312
In this work we present a unified model for the cosmological dark sector. The theory is based on a simple minimally coupled scalar field whose action only contains a canonical kinetic term and is invariant under transverse diffeomorphisms (TDiff). Th
Externí odkaz:
http://arxiv.org/abs/2311.16836
Publikováno v:
Universe 2023, Volume 9, Issue 6, 262
A substantial body of phenomenological and theoretical work over the last few years strengthens the possibility that the vacuum energy density (VED) of the universe is dynamical, and in particular that it adopts the `running vacuum model' (RVM) form,
Externí odkaz:
http://arxiv.org/abs/2304.11157
Publikováno v:
Physics of the Dark Universe 43 (2024) 101406
Extensions of the gravitational framework of Brans-Dicke (BD) are studied by considering two different scenarios: i) `BD-$\Lambda$CDM', in which a rigid cosmological constant, $\Lambda$, is included, thus constituting a BD version of the vanilla conc
Externí odkaz:
http://arxiv.org/abs/2302.04807
We study the performance of three pairs of tilted $\Lambda$CDM cosmological models, two pairs allowing for non-flat spatial hypersurfaces with CMB temperature and polarization power spectrum data (P18) from Planck, P18 lensing (lensing), and non-CMB
Externí odkaz:
http://arxiv.org/abs/2211.04268