期刊
PHYSICAL REVIEW D
卷 87, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.87.024024
关键词
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资金
- Rikkyo University
- Ministry of Education, Culture, Sports, Science and Technology, Japan [21740190, 23654082]
- Grants-in-Aid for Scientific Research [23654082, 21740190] Funding Source: KAKEN
It is well known that the sum of signed magnifications is invariant for mass lens systems. In this paper, we discuss the signed magnification sums of general spherical lens models, including the singular isothermal sphere, the Schwarzschild lens, and the Ellis wormhole, the last of which is an example of the traversable wormholes of the Morris-Thorne class. We show that the signed magnification sums are a very useful tool to distinguish exotic lens objects. For example, we show that one can distinguish the Ellis wormholes from the Schwarzschild lens with the signed magnification sums. DOI: 10.1103/PhysRevD.87.024024
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