3–9 Sept 2023
Hilton of the Americas, 1600 Lamar, Houston, Texas, 77010, USA
US/Central timezone

Equations of state for neutron stars with phase transitions of different orders

6 Sept 2023, 12:00
20m
Ballroom A (Hilton of the Americas)

Ballroom A

Hilton of the Americas

Oral Nuclear astrophysics Astrophysics

Speaker

Alexander Clevinger

Description

In this contribution, we describe new chemically-equilibrated charge neutral hybrid equations of state for neutron stars. They present a phase transition to deconfined quark matter and are differentiated by the particle population considered and how these particles interact. While some equations of state contain just nucleons and up, down-quarks, others also contain hyperons, Delta baryons, and strange quarks. The hybrid equations of state, together with corresponding hadronic ones, are available on the CompOSE repository and can be used for different astrophysical applications. Besides studying first-order phase transitions, we also explore the possibility of higher-order phase transitions and investigate possible astrophysical implications, e.g., for neutron-star mergers.

[1]Equations of state for neutron stars with phase transitions of different orders
A. Clevinger, M. Albino, V. Dexheimer, P. Hammond, D. Radice, C. Providencia
In-preparation.

[2] Hybrid Equations of State for Neutron Stars with Hyperons and Deltas
A. Clevinger, J. Corkish, K. Aryal, V. Dexheimer
Eur. Phys. J. A 58 (2022) 5, 96, e-Print: 2205.00559 [astro-ph.HE]

Category Theory
Collaboration (if applicable) NP3M

Primary author

Co-authors

Milena Albino (University of Coimbra) Dr Peter Hammond (The Pennsylvania State University) Prof. Veronica Dexheimer (Kent State University) Prof. David Radice (The Pennsylvania State University) Constança Providência

Presentation materials