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Accurate characterization of the stochastic gravitational-wave background with pulsar timing arrays by likelihood reweighting
Sophie Hourihane, Patrick Meyers, Aaron Johnson +2
An isotropic stochastic background of nanohertz gravitational waves creates excess residual power in pulsar-timing-array datasets, with characteristic inter-pulsar correlations des…
Search for subsolar-mass black hole binaries in the second part of Advanced LIGO's and Advanced Virgo's third observing run
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1702
We describe a search for gravitational waves from compact binaries with at least one component with mass 0.2 -- and mass ratio in Advanced LIGO…
Long Range Plan: Dense matter theory for heavy-ion collisions and neutron stars
Alessandro Lovato, Travis Dore, Robert D. Pisarski +61
Since the release of the 2015 Long Range Plan in Nuclear Physics, major events have occurred that reshaped our understanding of quantum chromodynamics (QCD) and nuclear matter at l…
Needle in a Bayes Stack: a Hierarchical Bayesian Method for Constraining the Neutron Star Equation of State with an Ensemble of Binary Neutron Star Post-merger Remnants
Alexander W. Criswell, Jesse Miller, Noah Woldemariam +6
Binary neutron star (BNS) post-merger gravitational-wave emission can occur in the aftermath of a BNS merger -- provided the system avoids prompt collapse to a black hole -- as a q…
Gravitational wave inference on a numerical-relativity simulation of a black hole merger beyond general relativity
Maria Okounkova, Maximiliano Isi, Katerina Chatziioannou +1
We apply common gravitational wave inference procedures on binary black hole merger waveforms beyond general relativity. We consider dynamical Chern-Simons gravity, a modified theo…
Concurrent estimation of noise and compact-binary signal parameters in gravitational-wave data
Cailin Plunkett, Sophie Hourihane, Katerina Chatziioannou
Gravitational-wave parameter estimation for compact binary signals typically relies on sequential estimation of the properties of the detector Gaussian noise and of the binary para…
The curious case of GW200129: interplay between spin-precession inference and data-quality issues
Ethan Payne, Sophie Hourihane, Jacob Golomb +3
Measurement of spin-precession in black hole binary mergers observed with gravitational waves is an exciting milestone as it relates to both general relativistic dynamics and astro…
Horizons: Nuclear Astrophysics in the 2020s and Beyond
H. Schatz, A. D. Becerril Reyes, A. Best +162
Nuclear Astrophysics is a field at the intersection of nuclear physics and astrophysics, which seeks to understand the nuclear engines of astronomical objects and the origin of the…
Accurate modeling and mitigation of overlapping signals and glitches in gravitational-wave data
Sophie Hourihane, Katerina Chatziioannou, Marcella Wijngaarden +3
The increasing sensitivity of gravitational-wave detectors has brought about an increase in the rate of astrophysical signal detections as well as the rate of "glitches"; transient…
No evidence that the majority of black holes in binaries have zero spin
Thomas A. Callister, Simona J. Miller, Katerina Chatziioannou +1
The spin properties of merging black holes observed with gravitational waves can offer novel information about the origin of these systems. The magnitude and orientations of black…
Comparing Bayes factors and hierarchical inference for testing general relativity with gravitational waves
Maximiliano Isi, Will M. Farr, Katerina Chatziioannou
In the context of testing general relativity with gravitational waves, constraints obtained with multiple events are typically combined either through a hierarchical formalism or t…
Probing neutron stars with the full pre-merger and post-merger gravitational wave signal from binary coalescences
Marcella Wijngaarden, Katerina Chatziioannou, Andreas Bauswein +2
The gravitational wave signal emitted during the coalescence of two neutron stars carries information about the stars' internal structure. During the long inspiral phase the main m…
Implicit correlations within phenomenological parametric models of the neutron star equation of state
Isaac Legred, Katerina Chatziioannou, Reed Essick +1
The rapid increase in the number and precision of astrophysical probes of neutron stars in recent years allows for the inference of their equation of state. Observations target dif…