Effects of dispersion of the dust velocity in the LISM on the interstellar dust distribution inside the heliosphere
arXiv:2102.13421 · doi:10.1134/S1063773721010047
Abstract
Interstellar dust (ISD) penetrates into the heliosphere due to the relative motion of the Sun and the local interstellar medium (LISM). Inside the heliosphere and at the boundaries, where solar wind interacts with the LISM, distribution of ISD is modified due to the action of the electromagnetic forces, the solar gravitation and the radiation pressure. These forces make the distribution of the ISD particles in the heliosphere inhomogeneous. In previous work we demonstrated the existence of singularities in the ISD density distribution at 0.03 - 10 a.u. north and south with respect to the heliospheric current sheet. In this paper we show that dispersion in the ISD velocity distribution strongly affects the singularities. Even small values of dispersion have the drastic impact on the density distribution and smooth the high density layers discovered previously.
References in corpus (10)
- Aspects of the Mass Distribution of Interstellar Dust Grains in the Solar System from In-Situ Measurements
- Three-dimensional kinetic-MHD model of the global heliosphere with the heliopause-surface fitting
- Magnitude and direction of the local interstellar magnetic field inferred from Voyager 1 and 2 interstellar data and global heliospheric model
- Perspectives on Interstellar Dust Inside and Outside of the Heliosphere
- Trajectories and Distribution of Interstellar Dust Grains in the Heliosphere
- 16 years of Ulysses Interstellar Dust Measurements in the Solar System: II. Fluctuations in the Dust Flow from the Data
- Heliospheric modulation of the interstellar dust flow on to Earth
- Revisiting Acceleration of Charged Grains in Magnetohydrodynamic Turbulence
- Interstellar hydrogen fluxes measured by IBEX-Lo in 2009: numerical modeling and comparison with the data
- Infrared dust arcs around the stars: I. effect of the radiation pressure