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Possible influence of comets on the chemical evolution of the galaxy (1974)

Tinsley, B. M. ; Cameron, A. G. W.

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Publication Date: 2019-06-27

Description: It has been suggested by Cameron (1973) that a cloud of comets containing a mass of condensable elements, comparable to the mass of such elements in the sun, formed on the outskirts of the solar system. If the formation of such comet clouds is a general feature of star formation, they constitute a significant sink of elements heavier than helium. It is shown here that this process provides a possible explanation for the very slow rate at which the mean metal abundance of disk stars has increased during the lifetime of the Galaxy.

Keywords: ASTROPHYSICS

Type: Astrophysics and Space Science; 31; Nov. 197

Format: text

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