Ultracompact (R less than 3 M) objects in general relativity

Details Ultracompact (R less than 3 M) objects in general relativity Ultracompact (R less than 3 M) objects in general relativity

Mar 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985cqgra...2..219i&link_type=abstract

Classical and Quantum Gravity (ISSN 0264-9381), vol. 2, March 1, 1985, p. 219-228.

Other

19

Density (Mass/Volume), Neutron Stars, Relativity, Stellar Mass, Equations Of State, Gravitational Effects, Red Shift, Stellar Gravitation, Stellar Models

Scientific paper

The possible existence of ultracompact objects, i.e., configurations with radii less than three times the mass in geometrical units, is investigated. Within the framework of core envelope models for a comparatively low value of the fiducial at the interface, stable ultracompact objects with causal cores are in fact found to be possible. On the other hand, available equations of state valid at higher densities when used throughout the star lead invariably to configurations with radii greater than 3 M. It is also shown that within the framework of core-envelope models stability requirements do not bring down the mass limit.

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