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Published January 1, 2011 | Version v1
Journal article Open

Local stellar kinematics from RAVE data - I. Local standard of rest

Creators

  • 1. Istanbul Univ, Fac Sci, Dept Astron & Space Sci, TR-34119 Univ Istanbul, Turkey
  • 2. Beykent Univ, Fac Sci & Letters, Dept Math & Comp, TR-34398 Istanbul, Turkey
  • 3. Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England
  • 4. Observ Strasbourg, F-67000 Strasbourg, France
  • 5. Univ Sydney, Sydney Inst Astron, Sch Phys, Sydney, NSW 2006, Australia
  • 6. Western Kentucky Univ, Bowling Green, KY 42101 USA
  • 7. Australian Natl Univ, Res Sch Astron & Astrophys, Canberra, ACT 0200, Australia
  • 8. Univ Cent Lancashire, Preston PR1 2HE, Lancs, England
  • 9. Heidelberg Univ, Astron Rechen Inst, Zentrum Astron, Heidelberg, Germany
  • 10. INAF Astron Observ Padova, I-36012 Asiago, VI, Italy
  • 11. Univ Victoria, Dept Phys & Astron, Victoria, BC V8P 5C2, Canada
  • 12. Astrophys Inst Potsdam, D-14482 Potsdam, Germany
  • 13. Australian Astron Observ, Sydney, NSW 1710, Australia

Description

We analyse a sample of 82 850 stars from the RAdial Velocity Experiment (RAVE) survey, with well-determined velocities and stellar parameters, to isolate a sample of 18 026 high-probability thin-disc dwarfs within 600 pc of the Sun. We derive space motions for these stars, and deduce the solar space velocity with respect to the local standard of rest. The peculiar solar motion we derive is in excellent agreement in radial U-circle dot and vertical W-circle dot peculiar motions with other recent determinations. Our derived tangential peculiar velocity, V-circle dot, agrees with very recent determinations, which favour values near 13 km s-1, in disagreement with earlier studies. The derived values are not significantly dependent on the comparison sample chosen, or on the method of analysis. The local Galaxy seems very well dynamically relaxed, in a near symmetric potential.

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