
#1
Nov712, 04:11 AM

P: 259

An amount of material I have read recently refers (specifically) to the spherical case of blackholes. Are there nonspherical blackholes?
Regards, Noel. 



#2
Nov712, 04:27 AM

Sci Advisor
PF Gold
P: 9,185

There are 4 known solutions to Einstein field equations for black holes. Two of the four are rotating black holes, which are not spherical  Kerr and KerrNewman black holes. The other two are the Schwarzschild and ReissnerNordstrom black holes, which are static and spherical. In each case, one variant carries no charge and the other has a charge.




#3
Nov712, 05:40 AM

P: 259

Thanks Chronos. Can I just confirm  rotating implies nonspherical, is that correct?
Regards, Noel. 



#4
Nov712, 05:37 PM

Sci Advisor
PF Gold
P: 9,185

Are there nonspherical blackholes?
Correct. See http://www.madore.org/~david/math/kerr.html for further discussion.




#5
Nov812, 07:28 AM

P: 259

Thanks Chronos.



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