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Friday, March 23, 2018

Over Russia will air showers from neighboring galaxies

Soon Irkutsk scientists will begin to study particles of matter coming to us from neighbouring galaxies with a new telescope that has produced for them in the Moscow suburb of Dubna, the joint Institute for nuclear research. Recently a large optical device was shipped by rail to a pilot area in the Tunka valley, through which flows the river Irkut, which flows into Baikal.

photo: Gennady Cherkasov

The telescope was made in the framework of the international experiment “Taiga” to measure the so-called Cherenkov light, or the Vavilov — Cherenkov radiation — the glow caused by the charged particle, which arises from extensive air showers (eass). These showers are nothing but breeding as a result of chain reactions of high-energy particles. It is believed that give rise to showers of extragalactic protons, helium nuclei or electrons, which are invading the earth’s atmosphere at an altitude of about 10-15 kilometers, give rise to a new high-energy particles. As a result, scientists can observe from the Ground a faint bluish glow. Despite the fact that similar phenomena occur quite often, not always possible to observe them, since it requires a very clear sky. Because scientists decided to send the telescope at Baikal, where the clear skies and over 300 days of sunshine and cloudless nights a year.

As explained “MK” IZMIRAN, protons and electrons, flying at high speeds, can reach the Earth from distant galaxies only as a result of global catastrophes, for example, supernova explosions. Therefore, they are very interesting to astrophysicists. In addition, this phenomenon is very valuable for nuclear physicists studying the nature of earth and space matter. Because the observation space of downpours akin to the observations of the particles in the LHC — the Large hadron Collider (artificial terrestrial particle accelerator). In collisions of protons and electrons with the atoms of the earth’s atmosphere produces new particles, which follow the theory of the birth of the Universe.

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