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Mapping the Milky Way and the Local Group

  • Mark Reid
  • Andreas Brunthaler
  • Xu Ye
  • Zheng Xing-Wu
  • Karl Menten
  • Lincoln Greenhill
  • Luca Moscadelli
Part of the Astrophysics and Space Science Proceedings book series (ASSSP)

Over the past decade, the astrometric accuracy of Very Long Baseline Inteferometry has improved dramatically. Currently relative positions between sources separated by about 1° are being measured with accuracies of ~ 10 μas. With this accuracy, trigonometric parallaxes throughout the Milky Way and proper motions of Local Group galaxies are now being measured. These observations will lead to direct mapping of the structure of the Milky Way, testing of the spiral density wave paradigm, measuring the dark matter halos of Local Group galaxies, and better understanding of the past history and future fate of these galaxies.

Keywords

Local Group Proper Motion Galactic Plane Dark Matter Halo VLBI Observation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Mark Reid
    • 1
  • Andreas Brunthaler
    • 2
    • 3
  • Xu Ye
    • 3
    • 4
  • Zheng Xing-Wu
    • 5
  • Karl Menten
    • 3
  • Lincoln Greenhill
    • 1
  • Luca Moscadelli
    • 6
  1. 1.Harvard-Smithsonian CfAUSA
  2. 2.Joint Institute for VLBI in EuropeNetherlands
  3. 3.Max-Planck-Insitut für RadioastronomieGermany
  4. 4.Shanghai UniversityChina
  5. 5.Nanjing UniversityChina
  6. 6.Arcetri ObservatoryItaly

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