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Is there a Bulge Distinct from the Bar?

Published online by Cambridge University Press:  25 May 2016

Konrad Kuijken
Konrad Kuijken*
Affiliation:
Kapteyn Instituut P.O. Box 800, 9700 AV, Groningen, Netherlands Harvard-Smithsonian Center for Astrophysics 60 Garden Street, Cambridge MA 02138, USA

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It seems by now well-established that in the central kpc the Galaxy is not axisymmetric (Gerhard 1995, Dwek 1995). The kinematics of many different tracers, as well as the distribution of sources on the sky, all point to an elongated distribution of matter and of the potential, with the long axis of the distortion pointing somewhere in the first Galactic quadrant. It is therefore tempting to reconsider our data concerning this part of the Galaxy in terms of ‘the’ Bar. But to what extent should we (or is it useful to) distinguish between the bar and the stellar bulge of old?

Type
Chapter 2: Is the Milky Way a Barred Spiral Galaxy?
Information
Symposium - International Astronomical Union , Volume 169: Unsolved Problems of the Milky Way , 1996 , pp. 71 - 77
Copyright
Copyright © Kluwer 1996 

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