Gas streams of stars

Gas streams of stars stopped growth of galaxy

Scientists received the evident certificate that growth of galaxy is limited at the expense of new stars. Supervision showed that new stars throw out gas streams which could go on a further increment of their quantity out of galaxy limits. The group of researchers of Germany, Canada and the USA used ALMA radio telescope for supervision. This tool is sensitive to a radio emission of submillimetric range. Studying the central part of a galaxy of NGC 253 scientists found some gas streams proceeding out of its limits. Thus the principle of supervision based on registration of radio waves, allowed to see only streams of the gas consisting of a monoxide of carbon that is carbon monoxide. The chemical composition of gas specifies that streams of substance are formed not at the expense of hot plasma of stars (it consists generally of hydrogen), and at the expense of the cold interstellar gas picked up by a star wind.

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White dwarfs

Telescope Hubble found two unique white dwarfs

Before emergence of the serious technical problems connected with full leakage of liquid helium on a space telescope Hubble, it managed to make one more important and interesting opening. Hubble found two stars, which already finished the evolution and turned into white dwarfs, at distance about 150 light years from Earth. In comparison with ordinary dwarfs, who has quite neutral atmosphere, the atmosphere of these two stars has a set of elements – construction blocks, which are responsible for formation of firm planets. These two stars were found by tools of an orbital telescope in Hyades scattered star congestion in constellation of the Taurus. Age Hyades makes about 625 million years. According to the researchers from the Cambridge University for them became a big surprise when they found construction elements in the atmosphere of two white dwarfs found telescope Hubble.

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