Search Results - "FABRIS, C"

Thermodynamics of AdS planar black holes and holography by Bilić, Neven, Fabris, Júlio C.

“…A bstract A large AdS Schwarzschild black hole can be approximated by an AdS planar black hole. However, the temperature of a planar black hole is not well…”
Get full text

The growth factor parametrization versus numerical solutions in flat and non-flat dark energy models by Velasquez-Toribio, A. M., Fabris, Júlio C.

“…In the present investigation we use observational data of f σ 8 to determine observational constraints in the plane ( Ω m 0 , σ 8 ) using two different…”
Get full text

Remarks on the black hole shadows in Kerr-de Sitter space times by Omwoyo, Eunice, Belich, Humberto, Fabris, Júlio C., Velten, Hermano

“…This work is geared towards analysis of shadows cast by Kerr-de Sitter (KdS) and Kerr-de Sitter Revisited (RKdS) black holes. Considering observers in the…”
Get full text

Neutron stars in Rastall gravity by Oliveira, A. M., Velten, H. E. S., Fabris, J. C., Casarini, L.

“…We calculate static and spherically symmetric solutions for the Rastall modification of gravity to describe neutron stars (NS). The key feature of the Rastall…”
Get full text

Nonconservative unimodular gravity: a viable cosmological scenario? by Fabris, Júlio C., Alvarenga, Marcelo H., Hamani-Daouda, Mahamadou, Velten, Hermano

“…In this work we review the issue of imposing the conservation of the energy–momentum tensor as a necessary condition to recover the equivalence between the…”
Get full text

Generalized models for black-bounce solutions in f(R) gravity by Fabris, Júlio C., Junior, Ednaldo L. B., Rodrigues, Manuel E.

“…In this article, the implementation of black-bounce solutions in f ( R ) theories is investigated. Black-bounce solutions are regular configurations of the…”
Get full text

Holographic Ricci dark energy in nonconservative unimodular gravity by Alvarenga, Marcelo H., Guimarães, Luiz Filipe, Fabris, Júlio C., Velten, Hermano

“…The structure of unimodular gravity (UG) is invariant to a subclass of diffeomorphism, the transverse diffeomorphism, due to the unimodular condition - g = ϵ …”
Get full text

Scalar field black holes by Carneiro, S., Fabris, J. C.

“…With a suitable decomposition of its energy-momentum tensor into pressureless matter and a vacuum type term, we investigate the spherical gravitational…”
Get full text

Observational constraints on Rastall’s cosmology by Batista, C. E. M., Fabris, Júlio C., Piattella, Oliver F., Velasquez-Toribio, A. M.

“…Rastall’s theory is a modification of General Relativity, based on the non-conservation of the stress-energy tensor. The latter is encoded in a parameter γ…”
Get full text

Multidimensional gravity with higher derivatives and inflation by Fabris, Júlio C., Popov, Arkady A., Rubin, Sergey G.

“…We elaborate on the inflationary model starting from multidimensional Lagrangian and gravity with second-order curvature terms. The effective scalar field is…”
Get full text

Classical and quantum cosmology of Fab Four John theories by Torres, Isaac, Fabris, Júlio C., Piattella, Oliver F.

“…We study the John term of Fab Four cosmology in the presence of a scalar potential. We show here how this theory can describe a wide range of cosmological…”
Get full text

The simplest wormhole in Rastall and k-essence theories by Bronnikov, Kirill A., Barcellos, Vinícius A. G., de Carvalho, Laura P., Fabris, Júlio C.

“…The geometry of the Ellis–Bronnikov wormhole is implemented in the Rastall and k-essence theories of gravity with a self-interacting scalar field. The form of…”
Get full text

Association between PCOS and autoimmune thyroid disease: a systematic review and meta-analysis by Romitti, Mírian, Fabris, Vitor C, Ziegelmann, Patricia K, Maia, Ana Luiza, Spritzer, Poli Mara

“…Polycystic ovary syndrome (PCOS) is the most prevalent endocrine disorder affecting women of reproductive age. PCOS has been associated with distinct metabolic…”
Get full text

Black hole lensing in Kerr-de Sitter spacetimes by Omwoyo, Eunice, Belich, Humberto, Fabris, Júlio C., Velten, Hermano

“…We have derived analytical solutions using Jacobi elliptic functions for bound and nearly bound photon orbits in Kerr-de Sitter and Kerr-de Sitter revisited…”
Get full text

Modified gravity models and the central cusp of dark matter haloes in galaxies by Rodrigues, Davi C., de Oliveira, Paulo L., Fabris, Júlio C., Gentile, Gianfranco

“…The N-body dark matter (DM) simulations point that DM density profiles, e.g. the Navarro–Frenk–White (NFW) halo, should be cuspy in its centre, but…”
Get full text

Duality between k-essence and Rastall gravity by Bronnikov, Kirill A., Fabris, Júlio C., Piattella, Oliver F., Rodrigues, Denis C., Santos, Edison C.

“…The k-essence theory with a power-law function of ( ∂ ϕ ) 2 and Rastall’s non-conservative theory of gravity with a scalar field are shown to have the same…”
Get full text

The Brans–Dicke–Rastall theory by Caramês, Thiago R. P., Daouda, Mahamadou H., Fabris, Júlio C., Oliveira, Adriano M., Piattella, Oliver F., Strokov, Vladimir

“…We formulate a theory combining the principles of scalar–tensor gravity and Rastall’s proposal of a violation of the usual conservation laws. We obtain a…”
Get full text

f(R) global monopole revisited by Caramês, Thiago R. P., Fabris, Júlio C., Bezerra de Mello, E. R., Belich, H.

“…In this paper the f ( R ) global monopole is reexamined. We provide an exact solution for the modified field equations in the presence of a global monopole for…”
Get full text

Holographic dark-energy models by del Campo, Sergio, Fabris, Júlio. C., Herrera, Ramón, Zimdahl, Winfried

Get full text

Primordial universe with the running cosmological constant by Ruiz, Jhonny A. Agudelo, de Paula Netto, Tibério, Fabris, Júlio C., Shapiro, Ilya L.

“…Theoretically, the running of the cosmological constant in the IR region is not ruled out. On the other hand, from the QFT viewpoint, the energy released due…”
Get full text