Galactic cluster with active elliptical NGC 6051 at its center. White indicates visible light, blue indicates X-ray emission, and red indicates radio synchrotron emission. Courtesy of NASA, Chandra, SDSS, and GMRT.
http://www.physorg.com/news/2011-03-enriching-intracluster-medium.html
This Chandra X-ray study has concluded that many galactic clusters include a central giant elliptical galaxy that ejects huge quantities of both matter and energy into the intracluster region (see above image). In fact, the estimate exceeds a million solar masses of iron atoms and energy output equivalent to the entire Milky Way galaxy luminosity over a million years. The conclusion is that somehow the supermassive black holes at the center of these clusters commonly produce these effects.
Doesn’t this push the accretion mechanism as an explanation of these observations further out on the already shaky limb? It seems that the combination of prodigious energy production over a sustained timeframe, together with considerable matter ejection over similar timeframes, constrains likely explanations to an evermore narrow range, with SQK cosmology near the center of that range.
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In regard to the above posting by gmagee, yes I agree, the findings regarding the giant elliptical galaxy NGC 6051 definitely contradict the notion that galactic cores are accreting matter from their surroundings. This study shows just the opposite that active galactic cores energetically eject material in prodigious amounts. The radio jets (pink areas in the above image) indicate that the core of this galaxy is active. Iron atoms are easily detectable at x-ray wavelengths which is why no comment was made on the intercluster gas density of ejected hydrogen and helium. In the solar system the hydrogen and helium mass abundance is 1,000 times greater than the iron mass abundance. So if the same ratio applies to the ejections coming out of this galaxy, we could expect that this galaxy has ejected a total of a billion solar masses of matter, equal to the mass of a dwarf elliptical galaxy.
P. LaViolette