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Search for Compact Binary Coalescences with Sub-solar Mass Components in Data from the Second Part of LIGO-Virgo-KAGRA's Fourth Observing Run
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1816
We report on a gravitational wave search for compact binary coalescences with secondary mass between 0.2 M and 1 M and primary mass between 0.2 M and 10 M, restricting the componen…
Black Hole Spectroscopy and Tests of General Relativity with GW250114
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration
The binary black hole signal GW250114, the loudest gravitational wave detected to date, offers a unique opportunity to test Einstein's general relativity (GR) in the high-velocity,…
GW230814: investigation of a loud gravitational-wave signal observed with a single detector
The LIGO Scientific Collaboration, The Virgo Collaboration, The Kagra Collaboration +1783
GW230814, detected by the LIGO Livingston observatory with a signal-to-noise ratio of 42.4, represents the loudest gravitational-wave signal in the GWTC-4.0 catalog. Its source is…
Prospects for the inference of inertial modes from hypermassive neutron stars with future gravitational-wave detectors
Miquel Miravet-Tenés, Florencia L. Castillo, Roberto De Pietri +2
Some recent, long-term numerical simulations of binary neutron star mergers have shown that the long-lived remnants produced in such mergers might be affected by convective instabi…
GW190521: A Binary Black Hole Merger with a Total Mass of
The LIGO Scientific Collaboration, the Virgo Collaboration, R. Abbott +1253
On May 21, 2019 at 03:02:29 UTC Advanced LIGO and Advanced Virgo observed a short duration gravitational-wave signal, GW190521, with a three-detector network signal-to-noise ratio…
Numerical-relativity simulations of long-lived remnants of binary neutron star mergers
Roberto De Pietri, Alessandra Feo, José A. Font +3
We analyze the properties of the gravitational wave signal emitted after the merger of a binary neutron star system when the remnant survives for more than a 80 ms (and up to 140ms…
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…
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…
A Search for Tensor, Vector, and Scalar Polarizations in the Stochastic Gravitational-Wave Background
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1097
The detection of gravitational waves with Advanced LIGO and Advanced Virgo has enabled novel tests of general relativity, including direct study of the polarization of gravitationa…
Convective Excitation of Inertial Modes in Binary Neutron Star Mergers
Roberto De Pietri, Alessandra Feo, José A. Font +4
We present the first very long-term simulations (extending up to ~140 ms after merger) of binary neutron star mergers with piecewise polytropic equations of state and in full gener…
GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1107
On August 14, 2017 at 10:30:43 UTC, the Advanced Virgo detector and the two Advanced LIGO detectors coherently observed a transient gravitational-wave signal produced by the coales…
GW170817: Implications for the Stochastic Gravitational-Wave Background from Compact Binary Coalescences
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1099
The LIGO Scientific and Virgo Collaborations have announced the first detection of gravitational waves from the coalescence of two neutron stars. The merger rate of binary neutron…
Spectral analysis of gravitational waves from binary neutron star merger remnants
Francesco Maione, Roberto De Pietri, Alessandra Feo +1
In this work we analyze the gravitational wave signal from hypermassive neutron stars formed after the merger of binary neutron star systems, focusing on its spectral features. The…
Modeling Mergers of Known Galactic Systems of Binary Neutron Stars
Alessandra Feo, Roberto De Pietri, Francesco Maione +1
We present a study of the merger of six different known galactic systems of binary neutron stars (BNS) of unequal mass with a mass ratio between and . Specifically, th…
Binary neutron star merger simulations with different initial orbital frequency and equation of state
Francesco Maione, Roberto De Pietri, Alessandra Feo +1
We present results from three-dimensional general relativistic simulations of binary neutron star coalescences and mergers using public codes. We considered equal mass models where…
Modeling Equal and Unequal Mass Binary Neutron Star Mergers Using Public Codes
Roberto De Pietri, Alessandra Feo, Francesco Maione +1
We present three-dimensional simulations of the dynamics of binary neutron star (BNS) mergers from the late stage of the inspiral process up to ms after the system has me…
Stiffness effects on the dynamics of the bar-mode instability of Neutron Stars in full General Relativity
Frank Löffler, Roberto De Pietri, Alessandra Feo +2
We present results on the effect of the stiffness of the equation of state on the dynamical bar-mode instability in rapidly rotating polytropic models of neutron stars in full Gene…
Neutron Star instabilities in full General Relativity using a ideal fluid
Roberto De Pietri, Alessandra Feo, Luca Franci +1
We present results about the effect of the use of a stiffer equation of state, namely the ideal-fluid ones, on the dynamical bar-mode instability in rapidly rotating polyt…
Bar-mode instability suppression in magnetized relativistic stars
Luca Franci, Roberto De Pietri, Kyriaki Dionysopoulou +1
We show that magnetic fields stronger than about G are able to suppress the development of the hydrodynamical bar-mode instability in relativistic stars. The suppression…
Dynamical bar-mode instability in rotating and magnetized relativistic stars
Luca Franci, Roberto De Pietri, Kyriaki Dionysopoulou +1
We present three-dimensional simulations of the dynamical bar-mode instability in magnetized and differentially rotating stars in full general relativity. Our focus is on the effec…
Modulation of LISA free-fall orbits due to the Earth-Moon system
M. Cerdonio, F. De Marchi, R. De Pietri +5
We calculate the effect of the Earth-Moon (EM) system on the free-fall motion of LISA test masses. We show that the periodic gravitational pulling of the EM system induces a resona…
Effects of Interplanetary Dust on the LISA drag-free Constellation
Massimo Cerdonio, Fabrizio De Marchi, Roberto De Pietri +5
The analysis of non-radiative sources of static or time-dependent gravitational fields in the Solar System is crucial to accurately estimate the free-fall orbits of the LISA space…
On the Shear Instability in Relativistic Neutron Stars
Giovanni Corvino, Luciano Rezzolla, Sebastiano Bernuzzi +2
We present new results on instabilities in rapidly and differentially rotating neutron stars. We model the stars in full general relativity and describe the stellar matter adopting…
Gravitational-wave extraction from neutron-star oscillations
Sebastiano Bernuzzi, Luca Baiotti, Giovanni Corvino +2
We compare different gravitational-wave extraction methods used in three-dimensional nonlinear simulations against linear simulations of perturbations of spherical spacetimes with…