Date: a month ago   Category: Cosmos

The space object which has turned scientific views is found


Astronomers of Monash University in Australia have found in the galaxy the Milky Way the oldest star which age reaches record 13,5 billion years. This object has arisen through about 300 million years after the Big Bang. The Science Alert edition reports about it. According to scientists, 2MASS J18082002-5104378 B can be one of the most ancient stars in the Universe. Her age was determined on the content of metals which in her are almost absent. Metals and other elements heavier than hydrogen were thrown out on interstellar Wednesday with death of the very first stars, and with each new generation the metallicity of stars increased. By estimates, concentration of metals in 2MASS J18082002-5104378 B is about 10 times lower, than at Earth. Existence of such star in the Milky Way indicates that the galaxy is 3-5 billion more senior than years, than was considered earlier. Besides, the mass of a star is only 10 percent of mass of the Sun that is the lower limit for combustion of hydrogen. According to scientists, it means that the very first stars in the Universe were probably not supermassive, and were formed of a small amount of material. Such small size allows her to live at least several tens of billions of years. It is more than important news in Film of Day Telegram-channel. Subscribe!

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