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21 - Population and Spectral Synthesis: It Doesn’t Work without Binaries

Published online by Cambridge University Press:  05 April 2019

Giacomo Beccari
Affiliation:
European Southern Observatory, Garching
Henri M. J. Boffin
Affiliation:
European Southern Observatory, Garching
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Summary

This chapter discusses the population and spectral synthesis of stellar populations. It describes the method required to achieve such synthesis and discusses examples where inclusion of interacting binaries are vital to reproducing the properties of observed stellar systems. These examples include the Hertzsprung–Russel diagram, massive star number counts, core-collapse supernovae and the ionising radiation from stellar populations that power both nearby HII regions and the epoch of reionization. It finally offers some speculations on the future paths of research in spectral synthesis.

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Publisher: Cambridge University Press
Print publication year: 2019

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