Mapping spiral structure on the far side of the Milky Way

  title={Mapping spiral structure on the far side of the Milky Way},
  author={A. Sanna and M. Reid and T. Dame and K. M. Menten and A. Brunthaler},
  pages={227 - 230}
  • A. Sanna, M. Reid, +2 authors A. Brunthaler
  • Published 2017
  • Physics, Medicine
  • Science
  • Measuring the far side of the Galaxy Direct measurements of distances to astronomical sources rely on parallax, which can usually only be measured for relatively nearby objects. The far side of the Milky Way has been impossible to measure accurately, because the parallax is very small and interstellar dust blocks optical light from those regions. Sanna et al. used radio interferometry to directly determine the parallax distance to a star-forming region on the far side of the Galaxy. They also… CONTINUE READING
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