Title: A solar wind and a capture of interstellar dust in the solar system
Authors: M. Kocifaj, J. Klacka
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Description: Motion of the interstellar dust particles in the Solar System is driven by gravitational and nongravitational forces. Some particles can be captured in the Solar System as a result of the interaction with solar radiation (Poynting-Robertson – PR - effect). These particles (with typical radii 300-600 nm) can evidently contribute to the total concentration of the dust in the circumsolar zone. Theoretical and numerical modeling showed that the solar wind can significantly decelerate the particles orbiting the Sun (in a similar way to the PR effect). The effect of solar wind is that the particles with radii 300-1000 nm can survive in the Solar System for a longer time. The capture of dust particles is most effective for grains with a characteristic radius of 400 nm. This size corresponds to the peak of size distribution of particles detected by Ulysses and Galileo probes. The theoretical results can therefore interpret experimental data quite well.
Reference: KOCIFAJ, Miroslav - KLAČKA, Jozef. A role of the solar wind in dynamics of interstellar dust in the solar system. In Solar Wind: Effects, Dynamics and Interactions. ISBN 978-1-60692-572-0, 2009, p. 275-289, (book chapter).
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Date and Time: 28.6. 2022 19:58:47 CEST
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