Space Motions of the Draco, Fornax, and Sagittarius Dwarf Spheroidal Galaxies

Conference paper
Part of the Astrophysics and Space Science Proceedings book series (ASSSP)

Abstract

Because of the diffraction-limited resolution of the Hubble Space Telescope (HST), it became possible to measure proper motions of the nearby dwarf spheroidal (dSph) galaxies using imaging with time baselines of only several years. This contribution discusses the motivation for measuring proper motions; describes highlights of the observational and data-reduction techniques; and reports the proper motions and their implications for the Draco, Fornax, and Sagittarius galaxies.

Keywords

Peri Refraction 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. D. I. Dinescu, B. A. Keeney, S. R. Majewski, & T. M. Girard: AJ, 128, 687 (2004)CrossRefADSGoogle Scholar
  2. J. S. Kalirai, et al.: ApJ, 657, L93 (2007)CrossRefADSGoogle Scholar
  3. A. Klypin, H. Zhao, & R. S. Somerville: ApJ, 573, 597 (2002)CrossRefADSGoogle Scholar
  4. S. R. Majewski, M. F. Skrutskie, M. D. Weinberg, & J. C. Ostheimer: ApJ, 599, 1082 (2003)CrossRefADSGoogle Scholar
  5. S. Piatek, et al.: AJ, 133, 818 (2007)CrossRefADSGoogle Scholar
  6. A. E. Schweitzer, K. M. Cudworth, S. R. Majewski, & N. B. Suntzeff: AJ, 110, 2747 (2007)CrossRefADSGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Slawomir Piatek
    • 1
  • Carlton Pryor
    • 2
  • Edward Olszewski
    • 3
  1. 1.Dept. of PhysicsNew Jersey Institute of TechnologyNewarkUSA
  2. 2.Dept. of Physics and Astronomy Rutgersthe State University of New JerseyPiscatawayUSA
  3. 3.Steward ObservatoryUniversity of ArizonaTucsonUSA

Personalised recommendations