Astronomers at the Australia National University have discovered evidence of the existence of a strand of large amount of material that connects to our galaxy, the Milky Way galaxy clusters, which are also interconnected with the rest of the universe.
"By examining the positions of the ancient groups of stars called globular clusters, we found that the groups form a narrow flat around the Milky Way, rather than being scattered across the sky," said Dr. Stephan Keller Research School of Astronomy and Astrophysics at ANU.
"Also, in the vicinity of the Milky Way, small satellites are to live in the same plane. What we have discovered evidence of the cosmic thread that binds us to the vastness of the universe. The filament of star clusters and small galaxies around the Milky Way is like the umbilical cord that feeds our galaxy during his youth, "said Keller.
There are two types of matter that makes up the universe - the dominant issue, the enigmatic dark matter and ordinary matter in the form of galaxies, stars and planets. "One consequence of the Big Bang and the dominance of dark matter is ordinary matter is driven, like the foam on the crest of a wave, most interconnected sheets and filaments that extend over vast cosmic voids - like the structure of a kitchen sponge. "
"Unlike a sponge, however," Keller said, "gravity pulls the material on these filaments interconnection to the largest lumps of matter, and our results show that globular clusters and satellite galaxies of the Milky Way trace this cosmic filament. Globular clusters are systems of hundreds of thousands of old stars tightly into a ball. In our picture, most of these clusters of stars are the central cores of small galaxies that have been developed along the filaments of gravity.
"Once these small galaxies are too close to the Milky Way were stripped of most of the stars away and added to our galaxy, leaving only their cores. "It is believed that the Milky Way has grown to its current size by the use of hundreds of such small galaxies in cosmic time," he said.
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