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在Vaidya-Bonner-de Siter时空中,准确地给出了黑洞内外视界及宇宙视界的位置,研究了该时空中黑洞外视界和宇宙视界附近荷电Dirac粒子的Hawking辐射,确定三个视界面中任何两个都不可能重合.The exact locations of the universe horizon and the outer and inner horizons of the black hole are given in the Vaidya-Bonner-de Sitter space-time.Hawking radiation of charged Dirac particles near the outer horizon and the universe horizon are studied.It is determined that any two of the three horizons cannot coincide.
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