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Evolution of the Coronae in Early-Type Galaxies

Published online by Cambridge University Press:  12 April 2016

L.P. David ,
W. Forman  and
C. Jones
L.P. David
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA
W. Forman
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA
C. Jones
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA

Abstract

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We present numerical simulations of the gaseous coronae in elliptical galaxies. These models consist of a modified King profile for the luminous portion of the galaxy and an isothermal dark halo. We include evolving stellar mass loss from planetary nebulae, and type I and II supernovae. Our models show that elliptical galaxies are likely to produce strong galactic winds at early times with x-ray luminosities of 1042 — 1044 ergs s-1 and temperatures of 10 keV. Galaxies can lose approximately 10-30% of their initial luminous mass in the wind which has an oxygen-to-iron ratio twice the solar value. Since elliptical galaxies are a principle component of rich clusters and compact groups this early wind phase affects the metallicity and temperature of the intracluster medium.

Type
6. Clusters of Galaxies, Cooling Flows
Information
International Astronomical Union Colloquium , Volume 115: High Resolution X-ray Spectroscopy of Cosmic Plasmas , 1990 , pp. 240 - 244
Copyright
Copyright © Cambridge University Press 1990

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