Scientists know that the planets, stars, and galaxies in the universe are all rotating, but even a larger scale up to the size of a group of galaxies, scientists find that their rotation is relatively slow, and some do not even rotate. Therefore, for a long time, scientists have believed that galaxy groups are the largest rotating celestial bodies in the universe.
However, a new study published recently found that the larger-scale celestial structure, a part of the huge, billion-light-year-long vein structure in the cosmic network, is also slowly rotating.
One of the researchers, Noam Libeskind, an astrologer at the Leibniz Institute for Astrophysics Potsdam in Germany, said: “These celestial bodies are so huge in structure that each galaxy is a piece of dust inside. These huge vein structures are much larger than galaxy groups.”
The “cosmic web” structure is a large-scale structure of the universe discovered by scientists in recent years. It means that seemingly unconnected galaxies and constellations are connected by a silk-like structure composed of cosmic gas and dust. , Like the veins of the universe, intertwined in complex shapes to form a huge cosmic web.
Each “vessel” looks like a hollow pipe in the middle, and the galaxy group is nothing more than small dust all over the “pipe”.
The current mainstream cognition in astronomy is that since the Big Bang was born 13.8 billion years ago, most of the various celestial bodies composed of gas and dust in the universe have jointly formed a flat structure, and continued to evolve to the later stage. The form of the giant “cosmic net” we see now.
This study uses data from the SDSS Digital Sky Survey to analyze the structure of more than 17,000 veins and observe the speed of the galaxies that make up these veins in such a giant pipe.
It turns out that these galaxies are rotating around the central axis of the pipeline. The fastest observed pipeline speed is about 360,000 kilometers per hour. The researchers specifically mentioned that they do not think that every vein in the cosmic network is rotating in this way, but that certain pipelines do have such a rotating pattern.
Libeskind said that the next big question that arises is “Why do they rotate?” Because according to the Big Bang theory, these veins did not rotate in the initial stage of formation. It seems that they started to rotate under the influence of certain factors in the later stages of the evolution of the universe.
The research team tried to come up with an explanation. The powerful gravitational field of these veined pipes pulls the gas and dust inside to slowly gather together, forming a certain staggered shear force, which may push the pipe to start rotating. Libeskind said: “Of course, at present we really don’t know what kind of torque can act on such a large-scale celestial body.”
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