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Ion Implantation into Presolar Grains: A Theoretical Model

Published online by Cambridge University Press:  05 March 2013

A. B. Verchovsky ,
I. P. Wright  and
C. T. Pillinger
A. B. Verchovsky
Affiliation:
Planetary and Space Sciences Research Institute, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK
I. P. Wright
Affiliation:
Planetary and Space Sciences Research Institute, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK
C. T. Pillinger
Affiliation:
Planetary and Space Sciences Research Institute, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK
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Abstract

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A numerical model for ion implantation into spherical grains in free space has been developed. It can be applied to single grains or collections of grains with known grain-size distributions. Ion-scattering effects were taken into account using results of computer simulations. Possible isotope and element fractionation of the implanted species was investigated using this model. The astrophysical significance of the model lies in the possible identification of energetically different components (such as noble gases) implanted into presolar grains (such as diamond and SiC) and in establishing implantation energies of the components.

Keywords

stars: circumstellar matterstars: winds, outflows
Type
Sixth Torino Workshop
Information
Publications of the Astronomical Society of Australia , Volume 20 , Issue 4 , 2003 , pp. 329 - 336
Copyright
Copyright © Astronomical Society of Australia 2003

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