Rotation of the galactic bulge

Dante Minniti, Simon D M White, Edward W Olszewski, John M. Hill

Research output: Contribution to journalArticle

32 Scopus citations


We present results from spectroscopic observations of K giants in two fields towards the Galactic bulge. The mean Galactocentric velocity and velocity dispersion for a field at l, b = (8, 7) are 〈V〉 = 45 ± 10 km s-1 and σ = 85 ± 7 km s-1. For a field at l, b = (12, 3) we find 〈V〉 = 77 ± 9 km s-1 and σ = 68 ± 6 km s-1. The bulge of the Galaxy is found to be rotating, and its velocity dispersion decreases with increasing Galactocentric distance.

Original languageEnglish (US)
JournalAstrophysical Journal
Issue number2 PART II
Publication statusPublished - Jul 10 1992



  • Galaxy: kinematics and dynamics
  • Galaxy: structure

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Minniti, D., White, S. D. M., Olszewski, E. W., & Hill, J. M. (1992). Rotation of the galactic bulge. Astrophysical Journal, 393(2 PART II).