Date: 3 months ago   Category: Science

Signs of death of the Milky Way are revealed


Scientists of Tohoku University (Japan) have found out that the Milky Way has experienced "clinical death" — the period of the termination of process of formation of stars which lasted about two billion and has ended five billion years ago. This model is confirmed by the chemical composition of nowadays existing stars. It is reported in the press release on Phys.org. According to researchers, during the education the Milky Way attracted surrounding cold gas which was raw materials for formation of stars of the first generation. Supernew type II which arise at a collapse of a kernel of a massive star released on interstellar Wednesday such chemical elements as oxygen, calcium, silicon and magnesium. About seven billion years ago the shock waves made by supernew have heated gas, and cold substance has ceased to collect in the galaxy that has stopped star formation processes. During this period of "clinical death" occurred supernew the Ia type which arise at explosion of the white dwarf as a part of double variable stars. These catastrophic processes have led to enrichment of the environment iron. As hot gas was cooled, letting out radiation, streams of cold gas gradually renewed that has led to emergence of stars of the second generation, including the Sun. It is more than important news in Film of Day Telegram-channel. Subscribe!

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