Do you think it looks like space, if we go beyond not only the Solar system but also of the local group of galaxies? According to researchers, going far beyond the limits of our space at home, you can see the voids, i.e., space devoid of galaxies, stars and even atoms, and among these dead spots are only visible countless thin threads of any length and size. The milky Way, the Andromeda galaxy and the Local group of galaxies make up only a few pixels in this incomprehensibly vast structure that astronomers call the”cosmic web”.
What is known about the cosmic web?
Recently we told you about the secrets of the cosmic web. Today, most of the data on it is based on computer simulations and the conclusions of experts. But now an international team of researchers first saw two gas threads connecting many of the galaxies in the void.the map of the researchers covers only a tiny portion of a massive web, it confirms that modern science is on the right track — the cosmic web, apparently plays a major role in the growth of the galaxy.
Galactic filaments, consisting of superclusters of galaxies form a complex, interconnected structure that binds the galaxy together. However, to find these threads difficult. Michele Fumagalli from Durham University and his colleagues studied a region of the sky in which the galaxies protocluster — area, where he began to gather a large group of galaxies. Inside galaxy clusters emit UV light, causing new stars formed inside or expandable regions around supermassive black holes in the centers of galaxies. Thread gas absorb the light and radiate it. Using the very large telescope of the European southern Observatory in Chile, astronomers have discovered the re-emitted light. According to the results of a study published in the journal Science October 4, discovered galactic filaments extend for millions of light years.
The hunt for a galactic filament
Galactic filaments are located in the constellation of Aquarius at a distance of 12 billion light years from Earth. Astronomers believe that after the Big Bang 13.8 billion years ago, hydrogen gas collapsed into filaments that extend into space. In areas where threads were crossed among themselves and formed the galaxies. A steady stream of gas coming from the galactic filaments allows galaxies to grow. Obtained in the course of the survey images confirm the story of the origin of galaxies. According to study co-author Hideki of Anahata, astronomer from the University of Tokyo, galactic filaments were only visible because the light from the newly born galaxies were similar to the city lights, illuminating a passing cloud.
The video below shows the filaments of the cosmic web in the SSA22 protocluster:
In addition to its ongoing role in the creation of galaxies, the cosmic web is also a relic of the Big Bang, and each thread — the end result of some microscopic ripple in the time of the birth of the Universe. Through further research, scientists will be able to figure out exactly how gravity affect matter directly after the Big Bang.