Rapidly rotating neutron stars with realistic nuclear matter equation of state

Abstract: We performed the comparison of three different numerical codes for constructing equilibrium models; (I) a code for static equilibrium configurations, (II) an implementation of the Hartle–Thorne slow‐rotation approximation, (III) a numerical solution of the full Einstein equations by LORENE. We aimed to construct sequences of uniformly rotating configurations at various rotation frequencies up to the Keplerian frequency for a hybrid hadronic–quark matter EOS where a smooth transition is provided between two separate phases. We investigated the difference between the results computed by the implementation of Hartle–Thorne slow‐rotation approximation and by LORENE/nrotstar, respectively. We have concluded that the codes can increase the difference between the slow‐rotating and the fast‐rotating approach exponentially, reaching 6.67% for the maximal mass configuration rotating at the Keplerian frequency.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Rapidly rotating neutron stars with realistic nuclear matter equation of state ; volume:344 ; number:1-2 ; year:2023 ; extent:6 ; Astronomische Nachrichten ; 344, Heft 1-2 (2023) (gesamt 6)

Contributors, Places and Time

• Creator: Kacskovics, Balázs ; Barta, Dániel ; Vasúth, Mátyás

Further information

• DOI: 10.1002/asna.20220109
• URN: urn:nbn:de:101:1-2023033015054424847416
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 11:03 AM CEST