在一种新的Tortoise坐标变换下研究Kerr-Newman-de Sitter黑洞的视界表面引力

Research on the Event Horizon Surface Gravity of Kerr-Newman-de Sitter Black Hole by Using a New Tortoise Coordinate Transformation

用超前Edinton坐标和滞后Ed inton坐标表示Kerr-Newm an-de Sitter黑洞的动态特征.使用一种新的Tor-toise坐标变换对H-J方程进行了研究,讨论了在两种坐标下的视界表面引力,结果表明它们是完全一致的.

The dynamic character of Kerr-Newman-de Sitter Black Hole is denoted by using advanced time Edinton coordinate and retarded time Edinton coordinate. H-J equation is studied by using a new Tortoise Coordinate Transformation. The horizon surface gravity under two kinds of coordinate is discussed and the result indicates they are the same.