Effects of the equation of state on the bulk properties of maximally rotating neutron stars

P. S. Koliogiannis and Ch. C. Moustakidis
Phys. Rev. C 101, 015805 – Published 29 January 2020

Abstract

Neutron stars are among the densest known objects in the universe and an ideal laboratory for the strange physics of supercondensed matter. While the simultaneous measurements of mass and radius of nonrotating neutron stars may impose constraints on the properties of the dense nuclear matter, the observation and study of maximally rotating ones, close to the mass-shedding limit, may lead to significantly further constraints. Theoretical predictions allow neutron stars to rotate extremely fast (even more than 2000Hz). However, until this moment, the fastest observed rotating pulsar has a frequency of 716Hz, much lower compared to the theoretical predictions. There are many suggestions for the mechanism which lead to this situation. In any case, the theoretical study of uniformly rotating neutron stars, along with accurate measurements, may offer rich information concerning the high-density part of the equation of state. In addition, neutron stars through their evolution may provide us with a criterion to determine the final fate of a rotating compact star. Sensitivity of bulk neutron stars properties on the equation of state at the mass-shedding limit are the main subject of the present study.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
7 More
  • Received 31 July 2019
  • Revised 13 November 2019

DOI:https://doi.org/10.1103/PhysRevC.101.015805

©2020 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

P. S. Koliogiannis* and Ch. C. Moustakidis

  • Department of Theoretical Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece

  • *pkoliogi@physics.auth.gr
  • moustaki@auth.gr

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 101, Iss. 1 — January 2020

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×