2.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Sapienza University of RomeIT497 papers
- National Institute for AstrophysicsIT152 papers
- Astronomical Observatory of CapodimonteIT83 papers
- Centro Brasileiro de Pesquisas FísicasBR81 papers
- University of FerraraIT75 papers
- Astronomical Observatory of RomeIT65 papers
- Institute for Space Astrophysics and PlanetologyIT64 papers
- European Southern ObservatoryCL62 papers
- International Center for Relativistic Astrophysics NetworkAM60 papers
- Brera Astronomical ObservatoryIT58 papers
- Osservatorio Astronomico di PadovaIT57 papers
- Centre National de la Recherche ScientifiqueFR52 papers
39 papers · 1 filter
Circular motion of neutral test particles in Reissner-Nordström spacetime
D. Pugliese, H. Quevedo, R. Ruffini
We investigate the motion of neutral test particles in the gravitational field of a mass with charge described by the Reissner-Nordström (RN) spacetime. We focus on the stu…
Mass Quadrupole as a Source of Naked Singularities
Hernando Quevedo
We investigate the gravitational field of a static mass with quadrupole moment in empty space. It is shown that in general this configuration is characterized by the presence of cu…
High Jet Efficiency and Simulations of Black Hole Magnetospheres
Brian Punsly
This article reports on a growing body of observational evidence that many powerful lobe dominated (FR II) radio sources likely have jets with high efficiency. This study extends t…
Inflation from R^2 gravity: a new approach using nonlinear electrodynamics
Christian Corda, Herman J. Mosquera Cuesta
We discuss another approach regarding the inflation from the R^2 theory of gravity originally proposed by Starobinski. A non-singular early cosmology is proposed, where, adding a n…
Wavelet analysis of the formation of the cosmic web
J. Einasto, G. Hütsi, E. Saar +6
According to the modern cosmological paradigm galaxies and galaxy systems form from tiny density perturbations generated during the very early phase of the evolution of the Univers…
Turbulent Cells in Stars: I. Fluctuations in Kinetic Energy and Luminosity
W. David Arnett, Casey Meakin
Three-dimensional (3D) hydrodynamic simulations of shell oxygen burning (Meakin and Arnett, 2007b) exhibit bursty, recurrent fluctuations in turbulent kinetic energy. These are sho…
The relativistic Feynman-Metropolis-Teller theory for white-dwarfs in general relativity
M. Rotondo, Jorge A. Rueda, R. Ruffini +1
The recent formulation of the relativistic Thomas-Fermi model within the Feynman-Metropolis-Teller theory for compressed atoms is applied to the study of general relativistic white…
Statistical Properties of Cosmological Billiards
Thibault Damour, Orchidea Maria Lecian
Belinski, Khalatnikov and Lifshitz (BKL) pioneered the study of the statistical properties of the never-ending oscillatory behavior (among successive Kasner epochs) of the geometry…
Cosmic Jets
C. Chicone, B. Mashhoon, K. Rosquist
We discuss time-dependent gravitational fields that "accelerate" free test particles to the speed of light resulting in cosmic double-jet configurations. It turns out that complete…
H Line Widths as an Orientation Indicator for Low-Ionization Broad Absorption Line Quasars
Brian Punsly, Shaohua Zhang
There is evidence from radio-loud quasars to suggest that the distribution of the H broad emission line (BEL) gas is arranged in a predominantly planar orientation, and this res…
Phase transitions in geometrothermodynamics
H. Quevedo, A. Sanchez, S. Taj +1
Using the formalism of geometrothermodynamics, we investigate the geometric properties of the equilibrium manifold for diverse thermodynamic systems. Starting from Legendre invaria…
Semi-Classical Isotropization of the Universe during a de Sitter phase
Francesco Cianfrani, Giovanni Montani, Marco Muccino
Semi-classical states for the Wheeler-DeWitt equation of a Bianchi type I model in the presence of a scalar field are analyzed. It is outlined how this scheme can effectively descr…
Entangled states in quantum cosmology and the interpretation of Lambda
S. Capozziello, O. Luongo
The cosmological constant can be achieved as the result of entangled and statistically correlated minisuperspace cosmological states, built up by using a minimal choice of obse…
X-ray monitoring of classical novae in the central region of M 31. II. Autumn and winter 2007/2008 and 2008/2009
M. Henze, W. Pietsch, F. Haberl +7
[Abridged] Classical novae (CNe) represent the major class of supersoft X-ray sources (SSSs) in the central region of our neighbouring galaxy M 31. We performed a dedicated monitor…
Discriminating the source of high-energy positrons with AMS-02
Miguel Pato, Massimiliano Lattanzi, Gianfranco Bertone
We study the prospects for discriminating between the dark matter (DM) and pulsar origin of the PAMELA positron excess with the Alpha Magnetic Spectrometer AMS-02. We simulate the…
Electrostatic Patch Effect in Cylindrical Geometry. III. Torques
Valerio Ferroni, Alexander Silbergleit
We continue to study the effect of uneven voltage distribution on two close cylindrical conductors with parallel axes started in our papers [1] and [2], now to find the electrostat…
Electrostatic Patch Effect in Cylindrical Geometry. II. Forces
Valerio Ferroni, Alexander Silbergleit
We continue our study of patch effect (PE) for two close cylindrical conductors with parallel axes, slightly shifted against each other in the radial and by any length in the axial…
Electrostatic Patch Effect in Cylindrical Geometry. I. Potential and Energy between Slightly Non-Coaxial Cylinders
Valerio Ferroni, Alexander Silbergleit
We study the effect of any uneven voltage distribution on two close cylindrical conductors with parallel axes that are slightly shifted in the radial and by any length in the axial…
X-ray monitoring of classical novae in the central region of M 31. I. June 2006 - March 2007
M. Henze, W. Pietsch, F. Haberl +9
(Abridged) Classical novae (CNe) have recently been reported to represent the major class of supersoft X-ray sources (SSSs) in the central region of our neighbour galaxy M 31. We c…
Accuracy and effectualness of closed-form, frequency-domain waveforms for non-spinning black hole binaries
T. Damour, A. Nagar, M. Trias
The coalescences of binary black hole (BBH) systems, here taken to be non-spinning, are among the most promising sources for gravitational wave (GW) ground-based detectors, such as…
Analytic modelling of tidal effects in the relativistic inspiral of binary neutron stars
Luca Baiotti, Thibault Damour, Bruno Giacomazzo +2
To detect the gravitational-wave (GW) signal from binary neutron stars and extract information about the equation of state of matter at nuclear density, it is necessary to match th…
Gravitational Radiations from a Spinning Compact Object around a supermassive Kerr black hole in circular orbit
Wen-Biao Han
The gravitational waves and energy radiations from a spinning compact object with stellar mass in a circular orbit in the equatorial plane of a supermassive Kerr black hole are inv…
High Bias Voltage Transport in Metallic Single-walled Carbon Nanotubes under Axial Stress
Juergen Dietel, Hagen Kleinert
We calculate the current-voltage characteristic of a homogeneously strained metallic carbon nanotube adsorbed on a substrate. The strain generates a gap in the energy spectrum lead…
Viscoresistive MHD Configurations of Plasma in Accretion Disks
Giovanni Montani, Riccardo Benini
We present a discussion of two-dimensional magneto-hydrodynamics (MHD) configurations, concerning the equilibria of accretion disks of a strongly magnetized astrophysical object. W…