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The New Cosmos pp 259-280 | Cite as

Colour-Magnitude Diagrams of Galactic and Globular Clusters. Stellar Evolution and Abundances of the Elements

  • Albrecht Unsöld
Part of the Heidelberg Science Library book series (HSL)

Abstract

Our current ideas about the origin, evolution and fate of stars originate in the study of colour-magnitude diagrams of stellar clusters. Here we have groups of equi-distant stars. From the magnitudes and colours measured photoelectrically with high accuracy, the subtraction of a common distance modulus and a single correction for interstellar absorption and reddening leads to the values of the (most commonly employed) absolute magnitude M v and the true colour index B — V.

Keywords

Heavy Element Globular Cluster Main Sequence Luminosity Function Stellar Evolution 
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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Colour-Magnitude Diagrams of Galactic and Globular Clusters. Stellar Evolution and Abundances of the Elements

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Copyright information

© Springer-Verlag New York Inc. 1969

Authors and Affiliations

  • Albrecht Unsöld
    • 1
  1. 1.Institute for Theoretical Physics and University ObservatoryKielGermany

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