Effects of Differential Rotation on the Maximum Mass of Neutron Stars | Zendy

Nicholas D. Lyford | Zendy; Thomas W. Baumgarte | Zendy; Stuart L. Shapiro | Zendy

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Effects of Differential Rotation on the Maximum Mass of Neutron Stars

Author(s) -

Nicholas D. Lyford,

Thomas W. Baumgarte,

Stuart L. Shapiro

Publication year - 2003

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/345350

Subject(s) - polytropic process , differential rotation , physics , neutron star , equation of state , stars , rotation (mathematics) , astrophysics , differential equation , differential (mechanical device) , general relativity , classical mechanics , geometry , mathematics , thermodynamics , quantum mechanics

The merger of binary neutron stars is likely to lead to differentiallyrotating remnants. In this paper we numerically construct models ofdifferentially rotating neutron stars in general relativity and determine theirmaximum allowed mass. We model the stars adopting a polytropic equation ofstate and tabulate maximum allowed masses as a function of differentialrotation and stiffness of the equation of state. We also provide a crudeargument that yields a qualitative estimate of the effect of stiffness anddifferential rotation on the maximum allowed mass.Comment: 6 pages, to appear in Ap

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