Rotation of the galactic bulge

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

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

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)
Pages (from-to)L47-L50
JournalAstrophysical Journal
Volume393
Issue number2 PART II
DOIs
StatePublished - Jul 10 1992

Keywords

  • Galaxy: kinematics and dynamics
  • Galaxy: structure

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Fingerprint Dive into the research topics of 'Rotation of the galactic bulge'. Together they form a unique fingerprint.

Cite this