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Galaxies that feed on other galaxies

Most of the information we have about the Milky Way stellar Halo comes from its inner region, which we can observe close to the solar neighbourhood. However, for the first time the chemical properties of the external regions of the halo of our galaxy were explored with high resolution spectroscopy in the optical of a sample of 28 red giant stars at large distances from the Sun. The method that was used, i.e. a spectroscopic analysis,...

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Galaxies that feed on other galaxies

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