Abstract
IN a previous communication1 we obtained an expression for the rate of growth of interstellar grains moving relative to a gas or to a cloud of grains. The main assumptions were that the grain remained spherical during growth and its size remained small in comparison with the mean free path of the gas molecules, thus enabling the velocity distribution of the molecules to be taken as an equilibrium, in this case Maxwellian, distribution. We also assumed that a fixed proportion, λ, of the colliding gas molecules adhered to the grain.
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References
Baines, M. J., and Williams, I. P., Nature, 205, 59 (1965).
Baines, M. J., Williams, I. P., and Asebiomo, A. S., Mon. Not. Roy. Astro. Soc., 130, 63 (1965).
Magnus, W., and Oberhettinger, F., Functions of Mathematical Physics (Chelsea, New York, 1954).
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BAINES, M., WILLIAMS, I. Growth of Interstellar Grains. Nature 208, 1191–1193 (1965). https://doi.org/10.1038/2081191a0
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DOI: https://doi.org/10.1038/2081191a0
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