How perturbative QCD constrains the equation of state at neutron-star densities

O Komoltsev, A Kurkela - Physical Review Letters, 2022 - APS
We demonstrate in a general and analytic way how high-density information about the
equation of state (EOS) of strongly interacting matter obtained using perturbative quantum …

Multimessenger constraints for ultradense matter

E Annala, T Gorda, E Katerini, A Kurkela, J Nättilä… - Physical Review X, 2022 - APS
Recent rapid progress in neutron-star (NS) observations offers great potential to constrain
the properties of strongly interacting matter under the most extreme conditions. In order to …

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 …

Extreme matter meets extreme gravity: Ultraheavy neutron stars with phase transitions

H Tan, T Dore, V Dexheimer, J Noronha-Hostler… - Physical Review D, 2022 - APS
The speed of sound of the matter within neutron stars may contain nonsmooth structure
related to first-or higher-order phase transitions. Here we investigate what are the …

Structure in the speed of sound: from neutron stars to heavy-ion collisions

N Yao, A Sorensen, V Dexheimer, J Noronha-Hostler - Physical Review C, 2024 - APS
From the observation of both heavy neutron stars and light ones with small radii, one
anticipates a steep rise in the speed of sound of nuclear matter as a function of baryon …

Extracting nuclear matter properties from the neutron star matter equation of state using deep neural networks

M Ferreira, V Carvalho, C Providência - Physical Review D, 2022 - APS
The extraction of the nuclear matter properties from neutron star (NS) observations is
nowadays an important issue, in particular, the properties that characterize the symmetry …

Nontrivial features in the speed of sound inside neutron stars

D Mroczek, MC Miller, J Noronha-Hostler… - arXiv preprint arXiv …, 2023 - arxiv.org
Measurements of neutron star masses, radii, and tidal deformability have direct connections
to nuclear physics via the equation of state (EoS), which for the cold, catalyzed matter in …

Constraints on high density equation of state from maximum neutron star mass

M Ferreira, C Providência - Physical Review D, 2021 - APS
The low density nuclear matter equation of state is strongly constrained by nuclear
properties; however, for constraining the high density equation of state it is necessary to …

Constraining neutron star matter from the slope of the mass-radius curves

M Ferreira, C Providência - Physical Review D, 2024 - APS
We analyze the implications of information about local derivatives from the mass-radius
diagram in neutron star matter. It is expected that the next generation of gravitational wave …

Hybrid stars with sequential phase transitions: the emergence of the g2 mode

MC Rodríguez, IF Ranea-Sandoval… - … of Cosmology and …, 2021 - iopscience.iop.org
Neutron stars are the densest objects in the Universe, with M∼ 1.4 M⊙ and R∼ 12 km, and
the equation of state associated to their internal composition is still unknown. The extreme …