Hierarchical mergers of stellar-mass black holes and their gravitational-wave signatures

D Gerosa, M Fishbach - Nature Astronomy, 2021 - nature.com
While most of the compact-binary mergers detected by LIGO and Virgo are expected to
consist of first-generation black holes formed from the collapse of stars, others might instead …

Progress in constraining nuclear symmetry energy using neutron star observables since GW170817

BA Li, BJ Cai, WJ Xie, NB Zhang - Universe, 2021 - mdpi.com
The density dependence of nuclear symmetry energy is among the most uncertain parts of
the Equation of State (EOS) of dense neutron-rich nuclear matter. It is currently poorly known …

[HTML][HTML] Observation of gravitational waves from two neutron star–black hole coalescences

R Abbott, TD Abbott, S Abraham… - The Astrophysical …, 2021 - iopscience.iop.org

A NICER view of the massive pulsar PSR J0740+ 6620 informed by radio timing and XMM-Newton spectroscopy

TE Riley, AL Watts, PS Ray, S Bogdanov… - The Astrophysical …, 2021 - iopscience.iop.org
We report on Bayesian estimation of the radius, mass, and hot surface regions of the
massive millisecond pulsar PSR J0740+ 6620, conditional on pulse-profile modeling of …

Impact of the PSR radius constraint on the properties of high-density matter

I Legred, K Chatziioannou, R Essick, S Han, P Landry - Physical Review D, 2021 - APS
X-ray pulse profile modeling of PSR J 0740+ 6620, the most massive known pulsar, with
data from the NICER and XMM-Newton observatories recently led to a measurement of its …

Heavy baryons in compact stars

A Sedrakian, JJ Li, F Weber - Progress in Particle and Nuclear Physics, 2023 - Elsevier
We review the physics of hyperons and Δ-resonances in dense matter in compact stars. The
covariant density functional approach to the equation of state and composition of dense …

Limiting masses and radii of neutron stars and their implications

C Drischler, S Han, JM Lattimer, M Prakash, S Reddy… - Physical Review C, 2021 - APS
We combine the equation of state of dense matter up to twice nuclear saturation density n
sat obtained using chiral effective field theory (χ EFT) and recent observations of neutron …

Was GW190814 a black hole–strange quark star system?

I Bombaci, A Drago, D Logoteta, G Pagliara, I Vidaña - Physical Review Letters, 2021 - APS
We investigate the possibility that the low mass companion of the black hole in the source of
GW190814 was a strange quark star. This possibility is viable within the so-called two …

Finding structure in the speed of sound of supranuclear matter from binary love relations

H Tan, V Dexheimer, J Noronha-Hostler, N Yunes - Physical review letters, 2022 - APS
Analyses that connect observations of neutron stars with nuclear-matter properties can rely
on equation-of-state insensitive relations. We show that the slope of the binary Love …

Tidal deformability of fermion-boson stars: Neutron stars admixed with ultralight dark matter

RF Diedrichs, N Becker, C Jockel, JE Christian… - Physical Review D, 2023 - APS
In this work, we investigate the tidal deformability of a neutron star admixed with dark matter,
modeled as a massive, self-interacting, complex scalar field. We derive the equations to …