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119 papers · 1 filter
Conserved quantities and integrability for massless spinning particles in general relativity
Lars Andersson, Finnian Gray, Marius A. Oancea
In general relativity, the dynamics of spinning particles is governed by the Mathisson-Papapetrou-Dixon equations, which are most commonly applied to massive bodies, but the framew…
Black hole spectroscopy of collapsing and merging neutron stars
Oliver Steppohn, Sebastian H. Völkel, Tim Dietrich
Black hole spectroscopy is an important pillar when studying gravitational waves from black holes and enables tests of general relativity. Most of the gravitational-wave signals ob…
Challenging a binary neutron star merger interpretation of GW230529
Ivan Markin, Anna Puecher, Mattia Bulla +1
GW230529_181500 represented the first gravitational-wave detection with one of the component objects' mass inferred to lie in the previously hypothesized mass gap between the heavi…
Comparing a Compact-Binary Mass-Shell Model with Select Observed Gravitational Waves
Noah M. MacKay
In a recent work, coalescing compact binaries (CCBs) were modeled as a rotating and contracting compact mass shell, providing an alternative effective representation to the state-o…
Simulating Binary Neutron Star Mergers with Finite-temperature Equations of State: The influences of the slope of the symmetry energy and artificial heating
Henrique Gieg, Maximiliano Ujevic, Armen Sedrakian +1
We present a new set of numerical-relativity simulations of merging binary neutron stars, aiming to identify possible observable signatures of the slope of the symmetry energy $L_{…
Overlapping signals in next-generation gravitational wave observatories: A recipe for selecting the best parameter estimation technique
Tomasz Baka, Harsh Narola, Justin Janquart +3
Third-generation gravitational wave detectors such as Einstein Telescope and Cosmic Explorer will have significantly better sensitivities than current detectors, as well as a wider…