Reality Check
Penultimate Amazing
Pixie of key fantasizes about the intracluster medium
Snipped usual EternalGibberish, EternalFantasy and EternalIgnorance from Pixie of key!"The space between the*galaxies*in clusters is filled with very hot gas – its temperature is of order ten million kelvin, or even higher. Most of the matter in the so-called intracluster medium is in the form of this very hot gas. Hot gas should cool off, and one of the major puzzles about*galaxy clusters*is that the hot intracluster gas does not seem to cool. In fact, calculations based on the energy radiated indicate that the gas should cool about ten times faster than is observed. X-ray observations of the hot gas also suggest that it might be turbulent, perhaps driven by mechanical flows of matter pouring outward from the*supermassive black holes*at the centers of the clusters' galaxies, perhaps creating inflating bubbles of fast-moving charged particles that stir and heat the gas. Unfortunately, current X-ray observatories do not have the ability to measure the supposed gas velocities to test this proposed solution."
Read more at:*http://phys.org/news/2014-11-hot-gas-clusters-galaxies.html#jCp
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