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Observational Evidence for a Bar in the Milky Way

Published online by Cambridge University Press:  12 April 2016

Konrad Kuijken
Konrad Kuijken*
Affiliation:
Kapteyn Institute, PO Box 800, 9700 AV Groningen, Netherlands

Abstract

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Evidence from a variety of sources points towards the existence of a bar in the central few kpc of the Galaxy. The measurements roughly agree on the direction of the bar major axis, but other parameters (axis ratio, size, pattern speed) are still poorly determined. Current dynamical models are limited by the quality of hydro simulations, the degeneracy of stellar orbit models, stellar-kinematic data and the significant lopsidedness of the central kpc. Microlensing promises new constraints on the mass distribution in the bulge/bar region.

Type
Part IX. The Galaxy as a Barred Spiral
Information
International Astronomical Union Colloquium , Volume 157: Barred Galaxies , 1996 , pp. 504 - 515
Copyright
Copyright © Astronomical Society of the Pacific 1996

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