Reduced Circumference

  • Thread starter Moore1879
  • Start date
21
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Okay, I understand that the r-coordinate in the Schwarzschild metric represents the reduce circumference. My problem is that the r-coordinate in the Kerr metric is NOT the reduced circumference! What is it? Somebody, please answer this as quickly and as painlessly as possible!
Thank You
 

hellfire

Science Advisor
1,047
1
Right, it is not. What is it? Sorry, I don’t know... I guess that if you make a coordinate change in a way that you get [tex]\inline{R(r)^2 d{\phi}^2}[/tex] then [tex]\inline{R}[/tex] will be the reduced circumference for [tex]\inline{\phi}}[/tex]. May be this can give you a hint about a possible physical meaning of [tex]\inline{r}[/tex].
 

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