Ion Implantation into Presolar Grains: A Theoretical Model

Publications of the Astronomical Society of Australia

A. B. Verchovsky¹ 

[1] I. P. Wright

关键词: stars: circumstellar matter;    stars: winds;    outflows;   

DOI  :  10.1071/AS03027

学科分类：天文学(综合)

来源: CSIRO

【 摘 要 】

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.

【 授权许可】

Unknown