© Collage: The Voice of Russia
A group of Russian and American scientists has put forward a new theory of composition and location of "dark matter" in the universe.
This substance does not emit electromagnetic radiation and, therefore, still eludes detection by the available devices. Until now, scientists have only conjectured where the clusters of the mysterious matter are hidden. "We know where to look for them,” says the Russian-American group of physicists. – “They form disks around the galaxies, stars, and planets. "
To see the invisible, to know the unknown, that is the slogan of the Russian-American team of scientists currently working at Harvard University, USA. The problem of "dark matter" offers more puzzles and assumptions than the established facts. Until now it was assumed that particles of this substance hardly interact with each other. The scientific team led by Andrei Katz refutes this hypothesis in the Physical Review Letters journal. There must be different kinds of particles of "dark matter", i.e., not only passive, but also active. The scientists believe that there are "dark" protons and electrons, which interact and form "dark" atoms.
“The nature of the mysterious substance is, most likely, similar to the conventional matter,” - says Katz. Interactions probably occur not only at the subatomic level, but also among "dark" atoms themselves. The group paid attention to the activity and the interaction of the "dark matter” particles while analyzing the gravitational effects. Apparently, "dark matter" forms disks around the galaxies, stars, and planets. Such clusters of the elusive substance can arise as a result of the interaction between the "dark" protons and electrons. “It provokes an energy loss, and then the particles begin to move more slowly,” says Andrei Katz. “As a result, they pile up and form a flat disk around the galaxy. This happens in the case of conventional matter.”
Physicists also assume that the "dark" atoms could form a "dark" plasma, the pulsations in which could have influenced the formation of the early universe. And now the mysterious particles have an effect on space objects.
Commenting on the work, Sean Carroll, an astrophysicist from Caltech, says: "The theory of a “dark disk" is a new milestone in the understanding of the history of the universe."
“The Hubble Space Telescope “Gaia” should record gravitational effects caused by the disc of the "dark matter," - says Carroll.
This super-telescope of the European Space Agency will be launched into orbit in autumn 2013 and will make a detailed map of the galaxy. Then the scientists hope to get a confirmation of their theory.
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