Phys. Rev. D 79, 104001 (2009) [7 pages]

Newman-Penrose constants of stationary electrovacuum space-times

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Xiangdong Zhang^1,*, Xiaoning Wu^2,†, and Sijie Gao^1,‡
¹Department of Physics, Beijing Normal University, Beijing, China, 100080
²Institute of Applied Mathematics, Academy of Mathematics and System Science, Chinese Academy of Sciences, P.O. Box 2734, Beijing, China, 100080

Received 9 November 2008; published 1 May 2009

A theorem related to the Newman-Penrose constants is proven. The theorem states that all the Newman-Penrose constants of asymptotically flat, stationary, asymptotically algebraically special electrovacuum space-times are zero. Straightforward application of this theorem shows that all the Newman-Penrose constants of the Kerr-Newman space-time must vanish.

URL:

http://link.aps.org/doi/10.1103/PhysRevD.79.104001

DOI:

10.1103/PhysRevD.79.104001

PACS:

04.20.−q, 04.20.Ha

^*zhangxiangdong@mail.bnu.edu.cn

^†wuxn@amss.ac.cn

^‡sijie@bnu.edu.cn

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Phys. Rev. D 79, 104001 (2009) [7 pages]

Newman-Penrose constants of stationary electrovacuum space-times