97 citations · 450 across the 30 of their papers we have counts for
19 papers · 1 filter
Nonlinear hydrodynamics in spinning neutron stars: Theoretical universal relations and equilibrium solutions
Hang Yu, Giorgio Nicolini, Shu Yan Lau +6
We study tides during the inspiral of a binary neutron star system, including nonlinear hydrodynamical interactions. Using an affine approximation that treats the perturbed neutron…
Advanced Virgo during the LIGO-Virgo-KAGRA fourth observing run
Virgo Collaboration, F Acernese, A Agapito +546
From April 10, 2024 to November 18, 2025 Advanced Virgo participated in the fourth observing run of the network of gravitational-wave detectors, together with Advanced LIGO and KAG…
Impact of the Einstein Telescope's duty cycle on the estimation of binary black holes parameters
Luca Negri, Thomas C. K. Ng, Thibeau Wouters +13
The geometry of the Einstein Telescope, the proposed next-generation European gravitational-wave observatory, is yet to be finalized. Two competing designs are under consideration:…
Detecting Tidal Resonances in Binary Neutron Stars
Fabian Gittins, Harsh Narola, Thibeau Wouters +3
As a binary neutron star inspirals due to the emission of gravitational waves, the rising tidal frequency resonantly excites vibrational modes. These oscillations are seismological…
The tidal response of a relativistic star
Nils Andersson, Rhys Counsell, Fabian Gittins +1
We develop a fully relativistic approach for determining the response of a compact star to a time/frequency dependent (tidal) environment. The strategy involves matching the soluti…
Dynamical neutron-star tides: The signature of a mode resonance
P. Pnigouras, N. Andersson, F. Gittins +1
Motivated by future opportunities in gravitational-wave astronomy and the ongoing effort to constrain physics under extreme conditions, we consider the signature of individual mode…
A post-Newtonian approach to neutron star oscillations
Shanshan Yin, Nils Andersson, Fabian Gittins
Next-generation gravitational-wave detectors are expected to constrain the properties of extreme density matter via observations of static and dynamical tides in binary neutron sta…
Interface modes in inspiralling neutron stars: A gravitational-wave probe of first-order phase transitions
A. R. Counsell, F. Gittins, N. Andersson +1
At the extreme densities in neutron stars, a phase transition to deconfined quark matter is anticipated. Yet masses, radii and tidal deformabilities offer only indirect measures of…
The Science of the Einstein Telescope
Adrian Abac, Raul Abramo, Simone Albanesi +485
Einstein Telescope (ET) is the European project for a gravitational-wave (GW) observatory of third-generation. In this paper we present a comprehensive discussion of its science ob…
Perturbation theory for post-Newtonian neutron stars
Fabian Gittins, Nils Andersson, Shanshan Yin
Neutron stars are compact, relativistic bodies that host several extremes of modern physics. An exciting development in recent years has been the opportunity to probe this exotic p…
Neutron star g-modes in the relativistic Cowling approximation
Rhys Counsell, Fabian Gittins, Nils Andersson +1
Mature neutron stars are expected to exhibit gravity g-modes due to stratification caused by a varying matter composition in the high-density core. By employing the BSk equation of…
Problematic systematics in neutron-star merger simulations
F. Gittins, R. Matur, N. Andersson +1
Next-generation gravitational-wave instruments are expected to constrain the equation of state of dense nuclear matter by observing binaries involving neutron stars. We highlight a…
Neutron-star seismology with realistic, finite-temperature nuclear matter
Fabian Gittins, Nils Andersson
The oscillation spectrum of a neutron star is notably rich and intrinsically dependent on the equation of state of nuclear matter. With recent advancements in gravitational-wave an…
Gravitational waves from neutron-star mountains
Fabian Gittins
Rotating neutron stars that support long-lived, non-axisymmetric deformations known as mountains have long been considered potential sources of gravitational radiation. However, th…
The r-modes of slowly rotating, stratified neutron stars
Fabian Gittins, Nils Andersson
The only r-modes that exist in a globally barotropic, rotating, Newtonian star are the fundamental solutions, where and are the indices of the spherical harmonic…
Formulating the r-mode problem for slowly rotating neutron stars
Nils Andersson, Fabian Gittins
We revisit the problem of inertial r-modes in stratified stars, drawing on a more precise description of the composition stratification in a mature neutron star. The results highli…
Building post-Newtonian neutron stars
Nils Andersson, Fabian Gittins, Shanshan Yin +1
Owed to their compactness, neutron stars involve strong gravity and extreme density physics. Nevertheless, at present, there are a variety of problems where progress (at least conc…
Rotating Love: The dynamical tides of spinning Newtonian stars
Pantelis Pnigouras, Fabian Gittins, Amlan Nanda +2
We carefully develop the framework required to model the dynamical tidal response of a spinning neutron star in an inspiralling binary system, in the context of Newtonian gravity,…
Tidal deformations of hybrid stars with sharp phase transitions and elastic crusts
Jonas P. Pereira, Michał Bejger, Nils Andersson +1
Gravitational wave astronomy is expected to provide independent constraints on neutron star properties, such as their dense matter equation of state. This is possible with the meas…