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The Hydrodynamical Evolution of Gas in Young Elliptical Galaxies

Published online by Cambridge University Press:  04 August 2017

R. Kunze ,
H.H. Loose  and
H.W. Yorke
R. Kunze
Affiliation:
University Observatory Göttingen, Geismarlandstraβe 11, D–3400 Göttingen, Federal Republic Germany
H.H. Loose
Affiliation:
University Observatory Göttingen, Geismarlandstraβe 11, D–3400 Göttingen, Federal Republic Germany
H.W. Yorke
Affiliation:
University Observatory Göttingen, Geismarlandstraβe 11, D–3400 Göttingen, Federal Republic Germany

Abstract

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We calculate the partial inflow of gas fuelled by stellar mass loss at an early epoch (109yr after the birth of the galaxy) during the evolution of an elliptical galaxy assuming a modified King model stellar distribution. The influence of the partial thermalization of stellar mass lost on the amount of gas which can be stored in the nucleus of a typical elliptical during the time of partial inflow is investigated. Masses up to 105M⊙ of cool (≤ 104K) material can be stored in the nucleus of the galaxy before the fast dissipation of the “kinetic bulk energy” of the nuclear gas cloud leads to “thermal” instability and subsequent collapse. A supermassive star can form. A detailed discussion of the model and the results is subject of a forthcoming paper (Kunze et al., 1986).

Type
Posters
Information
Symposium - International Astronomical Union , Volume 127: Structure and Dynamics of Elliptical Galaxies , 1987 , pp. 437 - 438
Copyright
Copyright © Reidel 1987 

References

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