Systematic study of the morphology and length of slow stable hybrid star branches

arXiv:2606.30264 · astro-ph.HE, hep-ph · Submitted 2026-06-29 · Read on arXiv

Mauro Mariani, Milva G. Orsaria, Germán Lugones, Ignacio F. Ranea-Sandoval

astro-ph.HE, hep-ph

Submitted: 2026-06-29

Comments: 18 pages, 9 figures. Published as a regular article in PRD

Journal ref: Phys. Rev. D 114, 023035 - Published 21 July, 2026

DOI: 10.1103/kltb-g668

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Core — 25× in this paper · explained in 2 episodes
• Consistency — 3× in this paper · explained in 3 episodes
• Degeneracy — 2× in this paper · explained in 3 episodes
• Model-Agnostic — 2× in this paper · explained in 2 episodes
• Phase Transitions — 2× in this paper · explained in 2 episodes
• Bayesian Framework — 1× in this paper · explained in 3 episodes
• Equation of State (EoS) — 1× in this paper · explained in 4 episodes
• Unified Framework — 1× in this paper · explained in 5 episodes

Sources

• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• Relativistic Shapiro delay measurements of an extremely massive millisecond pulsar
• Refined Mass and Geometric Measurements of the High-Mass PSR J0740+6620
• Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
• GW170817: Measurements of Neutron Star Radii and Equation of State
• A NICER View of PSR J0030+0451: Millisecond Pulsar Parameter Estimation
• The Radius of PSR J0740+6620 from NICER and XMM-Newton Data
• A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy
• GW190425: Observation of a Compact Binary Coalescence with Total Mass $\sim 3.4 M_{\odot}$
• A NICER View of PSR J1231$-$1411: A Complex Case
• A NICER View of the Nearest and Brightest Millisecond Pulsar: PSR J0437$\unicode{x2013}$4715
• A NICER view of the 1.4 solar-mass edge-on pulsar PSR J0614-3329
• Using gravitational-wave observations and quasi-universal relations to constrain the maximum mass of neutron stars
• Constraint on the maximum mass of neutron stars using GW170817 event
• On the maximum mass and oblateness of rotating neutron stars with generic equations of state
• Constraining the Properties of the Thermonuclear Burst Oscillation Source XTE J1814-338 Through Pulse Profile Modelling
• Equation of state and neutron star properties constrained by nuclear physics and observation
• How well do we know the neutron-matter equation of state at the densities inside neutron stars? A Bayesian approach with correlated uncertainties
• Evidence for quark-matter cores in massive neutron stars

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