Quark matter nucleation in neutron stars and astrophysical implications
A phase of strong interacting matter with deconfined quarks is expected in the core of
massive neutron stars. We investigate the quark deconfinement phase transition in cold (T=0 …
massive neutron stars. We investigate the quark deconfinement phase transition in cold (T=0 …
Was GW190814 a black hole–strange quark star system?
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 …
GW190814 was a strange quark star. This possibility is viable within the so-called two …
Constraining twin stars with GW170817
If a phase transition is allowed to take place in the core of a compact star, a new stable
branch of equilibrium configurations can appear, providing solutions with the same mass as …
branch of equilibrium configurations can appear, providing solutions with the same mass as …
Rotational properties of hypermassive neutron stars from binary mergers
Determining the differential-rotation law of compact stellar objects produced in binary
neutron stars mergers or core-collapse supernovae is an old problem in relativistic …
neutron stars mergers or core-collapse supernovae is an old problem in relativistic …
Could a slow stable hybrid star explain the central compact object in HESS J1731-347?
We explore an alternative explanation for the low-mass ultracompact star in the supernova
remnant HESS J1731-347 using a model-agnostic approach to construct hybrid equations of …
remnant HESS J1731-347 using a model-agnostic approach to construct hybrid equations of …
Phase transition effects on the dynamical stability of hybrid neutron stars
We study radial oscillations of hybrid nonrotating neutron stars composed by a quark matter
core and hadronic external layers. At first, we physically deduce the junction conditions that …
core and hadronic external layers. At first, we physically deduce the junction conditions that …
Delta baryons and diquark formation in the cores of neutron stars
G Malfatti, MG Orsaria, IF Ranea-Sandoval… - Physical Review D, 2020 - APS
We investigate the hadron-quark phase transition in cold neutron stars in light of (i) the
observed limits on the maximum-mass of heavy pulsars,(ii) constraints on the tidal properties …
observed limits on the maximum-mass of heavy pulsars,(ii) constraints on the tidal properties …
Asteroseismology using quadrupolar -modes revisited: Breaking of universal relationships in the slow hadron-quark conversion scenario
In this work, we consider polar perturbations, and we calculate the frequency and damping
time of the quadrupolar fundamental f-mode of compact objects, constructed using a wide …
time of the quadrupolar fundamental f-mode of compact objects, constructed using a wide …
Discontinuity gravity modes in hybrid stars: Assessing the role of rapid and slow phase conversions
Discontinuity gravity modes may arise in perturbed quark-hadron hybrid stars when a sharp
density jump exists in the stellar interior, and they are a potential fingerprint to infer the …
density jump exists in the stellar interior, and they are a potential fingerprint to infer the …
Two first-order phase transitions in hybrid compact stars: Higher-order multiplet stars, reaction modes, and intermediate conversion speeds
PB Rau, A Sedrakian - Physical Review D, 2023 - APS
We study compact stars with hybrid equations of state consisting of a nuclear outer region
and two nested quark phases, each separated from the lower density phase by a strong first …
and two nested quark phases, each separated from the lower density phase by a strong first …