Are there non-spherical blackholes?


by Lino
Tags: blackholes, nonspherical
Lino
Lino is offline
#1
Nov7-12, 04:11 AM
P: 259
An amount of material I have read recently refers (specifically) to the spherical case of blackholes. Are there non-spherical blackholes?

Regards,

Noel.
Phys.Org News Partner Space news on Phys.org
Testing immune cells on the International Space Station
Easter morning delivery for space station
NASA: Engineer vital to 1969 moon landing dies
Chronos
Chronos is offline
#2
Nov7-12, 04:27 AM
Sci Advisor
PF Gold
Chronos's Avatar
P: 9,183
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 Kerr-Newman black holes. The other two are the Schwarzschild and Reissner-Nordstrom black holes, which are static and spherical. In each case, one variant carries no charge and the other has a charge.
Lino
Lino is offline
#3
Nov7-12, 05:40 AM
P: 259
Thanks Chronos. Can I just confirm - rotating implies non-spherical, is that correct?

Regards,

Noel.

Chronos
Chronos is offline
#4
Nov7-12, 05:37 PM
Sci Advisor
PF Gold
Chronos's Avatar
P: 9,183

Are there non-spherical blackholes?


Correct. See http://www.madore.org/~david/math/kerr.html for further discussion.
Lino
Lino is offline
#5
Nov8-12, 07:28 AM
P: 259
Thanks Chronos.


Register to reply

Related Discussions
Block moving on a circular track-Work energy Circular Motion problem Introductory Physics Homework 34
Circular motion: Car driving along a circular hill Introductory Physics Homework 2
Uniform circular motion - plane in a circular arc Introductory Physics Homework 1
Identifying the forces in a difficult circular / non-circular motion hybrid problem. Introductory Physics Homework 5
Circular logic circular philosophy? General Discussion 2