Weak-field gravity of circular cosmic strings.
نویسندگان
چکیده
A weak-field solution of Einstein’s equations is constructed. It is generated by a circular cosmic string externally supported against collapse. The solution exhibits a conical singularity, and the corresponding deficit angle is the same as for a straight string of the same linear energy density. This confirms the deficit-angle assumption made in the Frolov-Israel-Unruh derivation of the metric describing a string loop at a moment of time symmetry. PACS numbers: 04.20-q, 98.90+s To appear in Physical Review D
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ورودعنوان ژورنال:
- Physical review. D, Particles and fields
دوره 47 2 شماره
صفحات -
تاریخ انتشار 1993