Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: jaiii on 28/06/2011 09:41:08

Title: Plasma curvature of space time
Post by: jaiii on 28/06/2011 09:41:08

Hello.

How is spacetime curved so that when he worked on it:

1st normal neutral matter
2nd plasma.   

Thank

Title: Plasma curvature of space time
Post by: imatfaal on 28/06/2011 15:27:32

Jaii - this is complicated stuff, you need to be a little more precise. 

there are parts of the stress-energy tensor that rely on the electromagnetic tensor - but this is not something we can easily (or at all) calculate.  we tend to calculate curvature in very special and rarified situations that ease the pain of the maths - what is it that you really want to know, it might be something we can help with or it might be something that we cannot tell at this moment!

Title: Plasma curvature of space time
Post by: Kryptid on 28/06/2011 21:55:36

I don't think a gas being in a plasma state would affect the way space-time curves much, if it all. I'm not aware of there being any gravitational effects associated with the Sun (which is a giant ball of plasma) that are not associated with the Earth (a ball of mostly neutral matter) that can't be explained purely by size/mass/rotational rate differences between the two.

Title: Plasma curvature of space time
Post by: Mr. Data on 28/06/2011 23:54:45

Quote from: Supercryptid on 28/06/2011 21:55:36

I don't think a gas being in a plasma state would affect the way space-time curves much, if it all. I'm not aware of there being any gravitational effects associated with the Sun (which is a giant ball of plasma) that are not associated with the Earth (a ball of mostly neutral matter) that can't be explained purely by size/mass/rotational rate differences between the two.

I've read work, a while ago now, that Plasma physics predicts certain phenomenon about the universes curvature quite well. I cannot say much on it, as I have not investigated it to a great degree... but there are many ways for the universe to have begun, which may imply a plasma or a gas, and all that depends on initial conditions of the universe, and any post phenomena.