Rapidly rotating general relativistic stars. II - Differentially rotating polytropes

Details Rapidly rotating general relativistic stars. II - Differentially rotating polytropes Rapidly rotating general relativistic stars. II - Differentially rotating polytropes

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.239..153k&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 239, July 1, 1989, p. 153-171.

Statistics

Computation

84

Computational Astrophysics, Neutron Stars, Polytropic Processes, Relativistic Theory, Stellar Models, Stellar Rotation, Gravitational Fields, Gravitational Waves, Space-Time Functions

Scientific paper

A previous numerical method (Komatsu, 1989) has been applied to the study of general relativistic differentially rotating bodies, including ring-like structures. Nine sequences for polytropic index (N) = 1/2 polytropes and 10 sequences for N = 3/2 polytropes have been computed for various values of the rotation parameter and the strength of gravity. For both general-relativistic and weak-Newtonian gravities, models have been obtained for the limiting cases of nearly rigid rotation and strongly differential rotation. It is found that the increase in the gravitational mass by rotation is considerably suppressed in the strong-gravity limit.

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