期刊
PHYSICAL REVIEW D
卷 93, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.93.084010
关键词
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资金
- Research Group Linkage Programme of the Alexander von Humboldt Foundation
- NSF [DFNI T02/6]
- European Social Fund
- Ministry Of Science, Research
- Arts Baden-Wurttemberg
We investigate universal relations between different normalizations of the moment of inertia and the compactness of neutron and strange stars. Slowly rotating as well as rapidly rotating models are studied in general relativity, R-2 gravity and scalar-tensor theories of gravity. Moment-of-inertia-compactness relations are examined for different normalizations of the moment of inertia. It is shown that for all studied cases the deviations from equation-of-state universality are small for the examined equations of state. It turns out that in some of the cases the examined relations are also theory independent to a good extent. Universality in relations between the maximum mass and the moment of inertia for some unstable models is also investigated.
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