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LadyAstronomer
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Baryonic Matter Found
      #2376067 - 05/06/08 09:20 PM

Here is an interesting story from the Max Planck Institute for Extraterrestrial Physics and the European Space Agency:

"Astronomers detect a part of long-searched baryonic matter in a filament connecting two clusters of galaxies"

ESA Press Release: It's a bit easier to read than the Max Plank Release. There are some awkwardly written sentences in that one, no doubt the result of translating it to English.

Max Plank Press Release

Original Paper

--------------------
"I do not know what I may appear to the world, but to myself I seem to have been only a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me." -- Sir Isaac Newton





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Mike Casey
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Re: Baryonic Matter Found new [Re: LadyAstronomer]
      #2376301 - 05/06/08 11:09 PM

A very interesting article, LadyAstronomer. I am willing to bet that baryonic matter makes up a much greater proportion of missing mass in the universe than we have so far detected. That, of course, includes the missing matter between my ears.

--------------------
Mike (tVA)

All those who believe in psychokinesis, raise my hand.


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photonovore
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Re: Baryonic Matter Found new [Re: Mike Casey]
      #2377991 - 05/07/08 03:48 PM

Frome reading the ESA release, i understand that the baryonic matter proportion is already theoretically accounted for in the 5% "normal matter" category, but that the theoretical quantity expected has thus far not been observationally verified ("half of the ordinary baryonic matter is unaccounted for.") This would seem to be an announcement of a newly discovered "hiding place" for such, observationally confirmed, but otherwise unrelated to the 23% "missing mass" which dark matter is usually trotted out to represent...

--------------------
Mardi




4" achromat, ETX-70.
Whitepeak Lunar Observatory Website


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