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Optical and Infrared Studies of Stellar Populations: The Galactic Nuclear Bulge

  • Jay A. Frogel
Part of the Astrophysics and Space Science Library book series (ASSL, volume 141)

Abstract

Giants in the Galactic nuclear bulge are different from solar neighborhood giants in terms of their observed photometric and spectroscopic characteristics and their mean metallicity. These bulge stars are the best available sample to use in stellar synthesis models of early-type galaxies. Observations from the main sequence to the top of the giant branch show no evidence for a component of the bulge population much younger than 10 Gyr. Several independent lines of evidence indicate a strong metallicity gradient in the bulge as would be expected if it formed dissipatively.

Keywords

Globular Cluster Stellar Population Luminosity Function Elliptical Galaxy Initial Mass Function 
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

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • Jay A. Frogel
    • 1
  1. 1.Kitt Peak National ObservatoryTucsonUSA

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