An worldwide group of scientists the study have discovered the missing 50 percent of the visible matter in the Universe. When it comes to normal matter; the stuff we are made of including protons, neutrons and electrons, there's also a chunk missing.
Scientists believe most of the universe-about 70 percent-is made up of dark energy, the mystery force thought to be driving its expansion.
But scientist felt that importance of detecting these missing matter or filament to know about the formation of the Universe and what keeps the galaxies intact.
The scientists from the Institute of Space Astrophysics in France and the University of Edinburgh relied on previous research results which suggested that stars, the interstellar environment and hot gasses of galactic clusters contain only 50 percent of the theoretical amount of the Baryonic matter. This successful detection of baryonic matters will definitely help to get more information about the dark matter.
While the filaments are hot, they are so low in density as to not be observable by x-ray telescopes - but do leave a signature in the cosmic microwave background (CMB), the remnants of light left over from the big bang.
'It's been purely speculation until now'. This effect is essentially light left over from the Big Bang scattering off the particles in the gas.
Some of the light scatters as it collides with the gases particles, leaving a tiresome patch in the cosmic microwave background. Two teams, who both separately uploaded papers to the arXiv preprint server in September, found these baryons using an effect called Sunyaev-Zel'dovich (tSZ).
With a total of 260,000 pairs of such galaxies already explored, it turned out that in filamentary structures between them, baryonic matter is several times denser than elsewhere in the universe.
However, our observations of normal matter (protons, neutrons and electrons) only account for about 2.5 percent of the universe-the rest of it is nowhere to be found.
Both groups found confirmation that the gas in the areas they were studying were dense enough to form filaments, "definitive" evidence they existed between the galaxies.
"The missing baryon problem is solved", Tanimura told the magazine.
'If this factor is included, our findings are very consistent with the other group.
"This goes a long way toward showing that many of our ideas of how galaxies form and how structures form over the history of the universe are pretty much correct".
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