This is an old revision of this page, as edited by Tony1 (talk | contribs) at 09:47, 2 May 2011 (moved Talk:Warm-hot intergalactic medium to Talk:Warm–hot intergalactic medium: = "warm to hot"). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
Revision as of 09:47, 2 May 2011 by Tony1 (talk | contribs) (moved Talk:Warm-hot intergalactic medium to Talk:Warm–hot intergalactic medium: = "warm to hot")(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)Why is WHIM so hot?
I saw a reference that WHIM has a temperature of 100,000 to 10 million degrees. How does it stay so hot? (I'm guessing that radiative cooling require the particles to collide before they can slow down and emit the relative motion as photons?) Why was it so hot in the first place? Wnt (talk) 20:53, 17 May 2010 (UTC)
- This paper discusses hydrodynamic simulations of the WHIM: . It indicates that the gas is heated and compressed by shocks from gravitationally collapsing regions. There is some mention of cooling, but I gather that the cooling of the WHIM is substantially complicated by feedback, and that a lot of open questions remain in this area. --Amble (talk) 20:27, 21 May 2010 (UTC)