Short-hard gamma-ray bursts

E Nakar - Physics Reports, 2007 - Elsevier
Two types of gamma-ray bursts (GRBs) are observed: short-duration hard spectrum GRBs
and long-duration soft spectrum GRBs. For many years long GRBs were the focus of intense …

Exploring properties of high-density matter through remnants of neutron-star mergers

A Bauswein, N Stergioulas, HT Janka - The European Physical Journal A, 2016 - Springer
Remnants of neutron-star mergers are essentially massive, hot, differentially rotating neutron
stars, which are initially strongly oscillating. As such they represent a unique probe for high …

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 …

Early appearance of isobars in neutron stars

A Drago, A Lavagno, G Pagliara, D Pigato - Physical Review C, 2014 - APS
We discuss the formation of Δ isobars in neutron star matter. We show that their threshold
density strictly correlates with the density derivative of the symmetry energy of nuclear …

Phases of dense matter in compact stars

D Blaschke, N Chamel - The Physics and Astrophysics of Neutron Stars, 2018 - Springer
Formed in the aftermath of gravitational core-collapse supernova explosions, neutron stars
are unique cosmic laboratories for probing the properties of matter under extreme conditions …

Can very compact and very massive neutron stars both exist?

A Drago, A Lavagno, G Pagliara - Physical Review D, 2014 - APS
The existence of neutron stars with masses of∼ 2 M⊙ requires a stiff equation of state at
high densities. On the other hand, the necessary appearance also at high densities of new …

Effects of anisotropy on strongly magnetized neutron and strange quark stars in general relativity

D Deb, B Mukhopadhyay, F Weber - The Astrophysical Journal, 2021 - iopscience.iop.org
We investigate the properties of anisotropic, spherically symmetric compact stars, especially
neutron stars (NSs) and strange quark stars (SQSs), made of strongly magnetized matter …

Phase transition effects on the dynamical stability of hybrid neutron stars

JP Pereira, CV Flores, G Lugones - The Astrophysical Journal, 2018 - iopscience.iop.org
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 …

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 …

Quark stars in 4D Einstein–Gauss–Bonnet gravity with an interacting quark equation of state

A Banerjee, T Tangphati, D Samart… - The Astrophysical …, 2021 - iopscience.iop.org
The detection of gravitational waves (GWs) from a binary neutron star (BNS) has opened a
new window on gravitational wave astronomy. With current sensitivities, detectable signals …