黑洞的引力磁性和角动量
Gravitomagnetism and Angular Momenta of Black-Holes
摘要：
我们回顾了Kerr-Newman黑洞的能量含量公式，其中引力磁能项起作用（Berman，2006; 2006 a; 2004）。在此基础上，得到了考虑重磁效应的角动量公式。可以阐明三个定理：（1）没有黑洞的能量被限制在它的内部;（2）旋转的黑洞没有被限制的角动量;（3）黑洞的能量密度不被限制在它的内部。我们的计算与Virbhadra（1990，1990 a，1990 b）和Aguirregabiria等人的计算之间的差异。（1996）的改进之处在于我们加入了一个对自引力能量负责的项，而被引用的作者们却忽略了这种在静态黑洞能量计算中出现的效应。
英文摘要：
We review the energy contents formulae of Kerr-Newman black-holes, where gravitomagnetic energy term comes to play(Berman, 2006; 2006a; 2004). Then, we obtain the angular momenta formulae, which include the gravitomagnetic effect. Three theorems can be enunciated: (1) No black-hole has its energy confined to its interior; (2) Rotating black-holes do not have confined angular momenta; (3) The energy density of a black-hole is not confined to its interior. The difference between our calculation and previous ones by Virbhadra(1990, 1990a, 1990b), and Aguirregabiria et al.(1996), lies in the fact that we include a term responsible for the self-gravitational energy, while the cited authors discarded such effect, which appears in the static black hole energy calculation.
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