Volume 55, Number 3, August 2001
|Page(s)||310 - 316|
|Published online||01 December 2003|
Maximum mass-radius ratios for charged compact general relativistic objects
Department of Physics, The University of Science
and Technology Clear Water Bay, Hong Kong, PRC
2 Department of Physics, The University of Hong Kong Pokfulam Road, Hong Kong, PRC
Accepted: 28 May 2001
Upper limits for the mass-radius ratio and total charge are derived for stable charged general relativistic matter distributions. For charged compact objects the mass-radius ratio exceeds the value 4/9 corresponding to neutral stars. General restrictions for the red shift and total energy (including the gravitational contribution) are also obtained.
PACS: 04.20.-q – Classical general relativity / 97.60.-s – Late stages of stellar evolution (including black holes)
© EDP Sciences, 2001
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