IBEX Ribbon from Outer Heliosheath Pick-up Ions

Details IBEX Ribbon from Outer Heliosheath Pick-up Ions IBEX Ribbon from Outer Heliosheath Pick-up Ions

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1302...98h&link_type=abstract

PICKUP IONS THROUGHOUT THE HELIOSPHERE AND BEYOND: Proceedings of the 9th Annual International Astrophysics Conference. AIP Con

Computer Science

Databases

1

Interstellar Matter, Sky Surveys, Plasma Waves, Pickups, Solar Wind, Interstellar Dust Grains, Diffuse Emission, Infrared Cirrus, Astronomical Catalogs, Atlases, Sky Surveys, Databases, Retrieval Systems, Archives, Etc., Mhd Waves, Plasma Waves, Turbulence, Pickup Ions, Particle Emission, Solar Wind

Scientific paper

NASA's Interstellar Boundary Explorer (IBEX) mission observed an unexpected band of enhanced energetic neutral atom (ENA) flux in its first all-sky maps. In this paper we discuss a possible mechanism that may explain this effect, and quantitatively test it using a 3D simulation of the global heliosphere. We describe the mechanism, and how the concept of a partial shell distribution can be used to approximate weak wave-particle scattering by PUIs that form the parent population of ENAs in the model ribbon. We also introduce a simple approximation to a solar cycle for primary ENAs born in the supersonic solar wind, and find that this has the effect of spreading out a bump in the model ENA spectrum centered on the solar wind energy.

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