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Hot Gas Flows in Elliptical Galaxies

  • Alvio Renzini
Conference paper
Part of the International Astronomical Union / Union Astronomique Internationale book series (IAUS, volume 171)

Abstract

Stars in elliptical galaxies lose mass at an overall present rate \(\dot{M}_*\simeq 15 \times 10^{-11} L_B M_\odot yr^{-1}\) (e.g., Faber & Gallagher 1976; Renzini & Buzzoni 1986). When allowing for the predicted increase back with cosmological time it turns out that over one Hubble time the stellar population of an elliptical galaxy has cumulatively lost 20–50% of its initial mass, the precise value depending on the IMF. This review focuses on two simple questions: what happens to the gas being lost by the stars? Where is it ultimately disposed?

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Copyright information

© Springer Science+Business Media Dordrecht 1996

Authors and Affiliations

  • Alvio Renzini
    • 1
  1. 1.European Southern ObservatoryGarching bei MünchenGermany

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