事件视界（英语：event horizon），是一种时空的曲隔界线。
事件视界望远镜 EHT ; Event Horizon Telescope
It might be therefore, suggest that event horizon is not a physical boundary from the point of view of thermodynamics.
这也从热力学的角度说明宇宙的事件视界并非一个好的物理边界。
参考来源 - 宇宙学的热力学分析：广义热力学第二定理及相互作用暗能量模型·2,447,543篇论文数据，部分数据来源于NoteExpress
结果表明，任一时刻黑洞熵都与黑洞事件视界面积成正比。
It is shown that the entropy of the black hole is proportional to the area of event horizon at any time.
利用赵峥和戴宪新提出的方法，得到了黑洞的温度和事件视界。
Using the method proposed by Zhao and Dai, the temperature of a black hole and event horizon are obtained.
当黑洞事件视界不随超前时间变化时，结果可回到已知的静态情况。
When the event horizon of the black hole does not depend upon the advanced-time, the results can return to the well-known static case.
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