223 citations
- Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Parma26 papers
- Politecnico di TorinoIT16 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di FirenzeIT10 papers
- National Interuniversity Consortium for the Physical Sciences of MatterIT7 papers
- University of LeedsGB5 papers
- University of SalernoIT5 papers
- Bielefeld UniversityDE4 papers
- Centre National de la Recherche ScientifiqueFR4 papers
- European Organization for Nuclear ResearchCH4 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PaviaIT4 papers
- University of FlorenceIT4 papers
- Institut des Hautes Études ScientifiquesFR3 papers
7 papers · 1 filter
Gravitational-Wave Extraction from Neutron Star Oscillations: comparing linear and nonlinear techniques
Luca Baiotti, Sebastiano Bernuzzi, Giovanni Corvino +2
The main aim of this study is the comparison of gravitational waveforms obtained from numerical simulations which employ different numerical evolution approaches and different wave…
Gravitational waves from pulsations of neutron stars described by realistic Equations of State
Sebastiano Bernuzzi, Alessandro Nagar
In this work we discuss the time-evolution of nonspherical perturbations of a nonrotating neutron star described by a realistic Equation of State (EOS). We analyze 10 different EOS…
Dynamical excitation of space-time modes of compact objects
Sebastiano Bernuzzi, Alessandro Nagar, Roberto De Pietri
We discuss, in the perturbative regime, the scattering of Gaussian pulses of odd-parity gravitational radiation off a non-rotating relativistic star and a Schwarzschild Black Hole.…
General covariance and the objectivity of space-time point-events
L. Lusanna, M. Pauri
"The last remnant of physical objectivity of space-time" is disclosed, beyond the Leibniz equivalence, in the case of a continuous family of spatially non-compact models of general…
Patch dualities and remarks on nonstandard cosmologies
Gianluca Calcagni
In this paper we establish dualities between inflationary, cyclic/ekpyrotic, and phantom cosmologies within the patch formalism approximating high-energy effects in scenarios with…
Background-Independent Gravitational Waves
Juri Agresti, Roberto De Pietri, Luca Lusanna +1
A Hamiltonian linearization of the rest-frame instant form of tetrad gravity (gr-qc/0302084), where the Hamiltonian is the weak ADM energy , in a completely fixed (…