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

Coskunoglu B., Ak S., Bilir S., Karaali S., Yaz E., Gilmore G., ...Daha Fazla

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, cilt.412, ss.1237-1245, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 412
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1111/j.1365-2966.2010.17983.x
  • Dergi Adı: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1237-1245
  • Anahtar Kelimeler: Galaxy: kinematics and dynamics, solar neighbourhood, Galaxy: stellar content, VELOCITY EXPERIMENT RAVE, SPECTROSCOPIC SURVEY, GALACTIC KINEMATICS, F-DWARF, GALAXY, STARS, GAIA, DISC, THIN, PARAMETERS
  • İstanbul Üniversitesi Adresli: Evet

Özet

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.