Istituto Nazionale di Fisica Nucleare, Sezione di Napoli

output

19922026

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2018 · gr-qcShow all

47 papers · 2 filters

gr-qc2018★ 9 cited

Cosmological perturbations in gravitational energy-momentum complex

Habib Abedi, Amir M. Abbassi, Salvatore Capozziello

Starting from the energy-momentum of matter and gravitational field in the framework of General Relativity and Teleparallel Gravity, we obtain the energy-momentum complex in flat F…

gr-qc2018★ 3 cited

An algorithm to generate anisotropic rotating fluids with vanishing viscosity

Stefano Viaggiu

Starting with generic stationary axially symmetric spacetimes depending on two spacelike isotropic orthogonal coordinates $x^{1}, x^{2}$ , we build anisotropic fluids with and witho…

gr-qc2018★ 18 cited

Equivalence principle violation at finite temperature in scalar-tensor gravity

Massimo Blasone, Salvatore Capozziello, Gaetano Lambiase +1

We analyze possible violations of the Equivalence Principle in scalar-tensor gravity at finite temperature $T .$ Before we present an approach where the Equivalence Principle violat…

gr-qc2018★ 152 cited

Cosmological perfect-fluids in f(R) gravity

Salvatore Capozziello, Carlo Alberto Mantica, Luca Guido Molinari

We show that an n-dimensional generalized Robertson-Walker (GRW) space-time with divergence-free conformal curvature tensor exhibits a perfect fluid stress-energy tensor for any f(…

gr-qc2018★ 632 cited

Tests of General Relativity with GW170817

The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1145

The recent discovery by Advanced LIGO and Advanced Virgo of a gravitational wave signal from a binary neutron star inspiral has enabled tests of general relativity (GR) with this n…

gr-qc2018★ 7 cited

Hubble drift in Palatini $f (R)$ -theories

L. Del Vecchio, L. Fatibene, S. Capozziello +3

In a Palatini $f (R)$ -model, we define chonodynamical effects due to the choice of atomic clocks as standard reference clocks and we develop a formalism able to quantitati…

gr-qc2018★ 47 cited

Modified gravity revealed along geodesic tracks

Mariafelicia De Laurentis, Ivan De Martino, Ruth Lazkoz

The study of the dynamics of a two-body system in modified gravity constitutes a more complex problem than in Newtonian gravity. Numerical methods are typically needed to solve the…

gr-qc2018★ 9 cited

On a physical description and origin of the cosmological constant

Stefano Viaggiu

In this paper we use and extend the results present in \cite{1,2,3,4} and in particular in \cite{4} to obtain a statistical description of the cosmological constant in a cosmologic…

gr-qc2018★ 4 cited

Tomographic analysis of the De Sitter model in quantum and classical cosmology

Cosimo Stornaiolo

The importance of the tomographic approach is that either in quantum mechanics as in classical mechanics the state of a physical system is expressed with the same family of functio…

gr-qc2018★ 54 cited

Effective field description of the Anton-Schmidt cosmic fluid

Salvatore Capozziello, Rocco D'Agostino, Roberto Giambò +1

The effective theory of the Anton-Schmidt cosmic fluid within the Debye approximation is investigated. In this picture, the universe is modeled out by means of a medium without cos…

gr-qc2018★ 136 cited

Search for gravitational waves from a long-lived remnant of the binary neutron star merger GW170817

The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1138

One unanswered question about the binary neutron star coalescence GW170817 is the nature of its post-merger remnant. A previous search for post-merger gravitational waves targeted…

gr-qc2018★ 49 cited

Magnetic tidal Love numbers clarified

Paolo Pani, Leonardo Gualtieri, Tiziano Abdelsalhin +1

In this brief note, we clarify certain aspects related to the magnetic (i.e., odd parity or axial) tidal Love numbers of a star in general relativity. Magnetic tidal deformations o…

gr-qc2018★ 2 cited

On the energy content of electromagnetic and gravitational plane waves through super-energy tensors

Donato Bini, Andrea Geralico

The energy content of (exact) electromagnetic and gravitational plane waves is studied in terms of super-energy tensors (the Bel, Bel-Robinson and the --less familiar-- Chevreton t…

gr-qc2018★ 16 cited

Thermodynamics and phase transitions of galactic clustering in higher-order Modified Gravity

Sudhaker Upadhyay, Behnam Pourhassan, Salvatore Capozziello

We study the thermodynamics of galactic clustering under the higher-order corrected Newtonian dynamics. The clustering of galaxies is considered as a gravitational phase transition…

gr-qc2018★ 67 cited

Noether Symmetries as a geometric criterion to select theories of gravity

Konstantinos F. Dialektopoulos, Salvatore Capozziello

We review the {\it Noether Symmetry Approach} as a geometric criterion to select theories of gravity. Specifically, we deal with Noether Symmetries to solve the field equations of…

gr-qc2018★ 161 cited

How to tell an accreting boson star from a black hole

Hector Olivares, Ziri Younsi, Christian M. Fromm +6

The capability of the Event Horizon Telescope (EHT) to image the nearest supermassive black hole candidates at horizon-scale resolutions offers a novel means to study gravity in it…

gr-qc2018★ 11 cited

Hyperbolic-like elastic scattering of spinning particles by a Schwarzschild black hole

Donato Bini, Andrea Geralico

The scattering of spinning test particles by a Schwarzschild black hole is studied. The motion is described according to the Mathisson-Papapetrou-Dixon model for extended bodies in…

gr-qc2018★ 27 cited

The quark chemical potential of QCD phase transition and the stochastic background of gravitational waves

Salvatore Capozziello, Mohsen Khodadi, Gaetano Lambiase

The detection of stochastic background of gravitational waves (GWs), produced by cosmological phase transitions (PTs), is of fundamental importance because allows to probe the phys…

gr-qc2018★ 5 cited

Black hole geodesic parallel transport and the Marck recipe for isolating cumulative precession effects

Donato Bini, Andrea Geralico, Robert T. Jantzen

The Wigner rotations arising from the combination of boosts along two different directions are rederived from a relative boost point of view and applied to gyroscope spin precessio…

gr-qc2018★ 56 cited

Impact of high-order tidal terms on binary neutron-star waveforms

Xisco Jimenez-Forteza, Tiziano Abdelsalhin, Paolo Pani +1

GW170817, the milestone gravitational-wave event originated from a binary neutron star merger, has allowed scientific community to place a constraint on the equation of state of ne…

gr-qc2018★ 58 cited

Calibration of Advanced Virgo and Reconstruction of the Gravitational Wave Signal h(t) during the Observing Run O2

Virgo Collaboration, F. Acernese, T. Adams +281

In August 2017, Advanced Virgo joined Advanced LIGO for the end of the O2 run, leading to the first gravitational waves detections with the three-detector network. This paper descr…

gr-qc2018★ 29 cited

Noether symmetries and boundary terms in extended Teleparallel gravity cosmology

Sebastian Bahamonde, Ugur Camci, Salvatore Capozziello

We discuss an extended Teleparallel gravity models comprising functions of scalar invariants constructed by torsion, torsion Gauss-Bonnet and boundary terms. We adopt the Noether S…

gr-qc2018★ 63 cited

Kinematic model-independent reconstruction of Palatini $f (R)$ cosmology

Salvatore Capozziello, Rocco D'Agostino, Orlando Luongo

A kinematic treatment to trace out the form of $f (R)$ cosmology, within the Palatini formalism, is discussed by only postulating the universe homogeneity and isotropy. To figure th…