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The Stellar Content of the Bulges of Spiral Galaxies: What do We Know and How Do We Know It?

Published online by Cambridge University Press:  07 August 2017

Jay A. Frogel
Jay A. Frogel*
Affiliation:
Astronomy Department The Ohio State University 174 West 18th Avenue Columbus, Ohio 43210

Abstract

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For a true picture of the stellar content of the bulges of spiral galaxies it is necessary to combine spectroscopic and photometric observations from the ultraviolet to the infrared. In early-type spirals one generally finds a metal-rich, old population with no excess of low mass stars. In later type systems there is an increasing contribution from young stars. The population in the Galactic bulge is representative and does not contain a significant number of stars with large IR excesses.

Type
III. The Stellar Populations of Non-Resolved Galaxies
Information
Symposium - International Astronomical Union , Volume 149: The Stellar populations of Galaxies , 1992 , pp. 245 - 254
Copyright
Copyright © Kluwer 

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