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The light curved in the CM field

Authors:	J H Fan G Z Xie Y J Wang J Q Wu

Institution:	(1) Yunnan Observatory, Academia Sinica, Kunming, Yunnan Province, China;(2) Changsha Railway Institute, Changsha, Hunan Province, China

Abstract:	In this paper we introduce the CM field in Sections 2 and 3 based on the paper by Wang and Peng (1985), and calculate the light curved in the CM field in Section 4. The result shows thatP makes _CM larger than _C at $\theta \in (\cos ^{ - 1} \tfrac{1}{3},\pi - \cos ^{ - 1} \tfrac{1}{3})$ , and smaller at $\theta \in (\theta ,\cos ^{ - 1} \tfrac{1}{3}) \cup (\pi - \cos ^{ - 3} \tfrac{1}{3},\pi )$ . Under a special circumstance which source, CM lens, and observer are in the same line, if we get \|₀₌₀, $\Delta \phi \|_{\theta = \cos ^{ - 1} } 1/3$ and \|_=/2, we can determine theP(M) andQ(M) of the CM lens,M is the mass of the CM lens.

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