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The Shape of the Bulge from Iras Miras

  • Patricia Whitelock
  • Robin Catchpole
Part of the Astrophysics and Space Science Library book series (ASSL, volume 180)

Abstract

The number distribution of Miras in the Bulge as a function of distance modulus indicates that the half of the Bulge which is at positive galactic longitude is closer to us than the other half. The observed stellar distribution can be modelled with a triaxial ellipsoidal distribution of stars which we refer to as a ‘bar’ which is tilted at roughly 45° to the line of sight. Furthermore this bar is rotating in a manner consistent with expectations from the kinematics of the galactic centre gas.

Keywords

Globular Cluster Scale Height Stellar Evolution Interstellar Extinction Distance Modulus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 1992

Authors and Affiliations

  • Patricia Whitelock
    • 1
  • Robin Catchpole
    • 2
  1. 1.South African Astronomical ObservatorySouth Africa
  2. 2.Royal Greenwich ObservatoryCambridgeUK

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