Astrophysics from Australia, Great Britain and the United States showed that the galaxies enrich the substance passing through them by heavy elements. Article researchers Published in The Astrophysical Journal.
With the help of the new equipment of the bracket observatory in Hawaii, the researchers measured the metallicity – the relative concentration of elements heavier than hydrogen and helium – located at a distance of 500 light years from the Sun of the MRK Galaxy MRK 1486. According to scientists, the galaxy with very fast star formation was an ideal candidate – It is located “edge” to the ground and watch passing through it passage of interstellar gas flows was relatively easy.
Researchers found that the metallicity of the substance expiring from the galaxy is 1.6 times higher than that of the interstellar medium and 6.3 times higher than that of the accreable gas to the gravitation from the environment – gas. In the galaxy, as an astronomer explains, this substance is used to form stars. In their depths through the process of thermonuclear synthesis, new, heavier than hydrogen and helium are formed, elements, which are then released by formation of new and supernova, “polluting” expiring from the center of the Galaxy gas.
researchers emphasize that they managed to confirm the existence of this cycle outside the Milky Way.