2014/08/26 by M. Siewert, Siewert, M., H. J. Fahr +2
Earth and Planetary Sciences · Physics and Astronomy · #Atmospheric Ozone and Climate #FOS: Physical sciences #Ionosphere and magnetosphere dynamics #Solar and Space Plasma Dynamics #Solar and Stellar Astrophysics (astro-ph.SR) #astro-ph.SR
paper · pdf · doi:10.48550/arxiv.1408.6082
5 pages, 15 figures
arxiv created 2014/08/26 · openalex publication_date 2014/08/26 · arxiv updated 2014/08/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Understanding the outer heliospheric interface is a major challenge, especially in the light of recent observations by the IBEX and Voyager missions. We present further details on a new required theoretical correction that has been identified as substantial in a recent paper, the so-called source depletion effect. These results complement and expand earlier calculations of transit-time delays by presenting global skymaps of Energetic Neutral Atoms (ENAs) calculated with the depletion correction, comparing them with skymaps calculated without these corrections. Our results demonstrate that the depletion correction is critical for interpreting IBEX-Hi ENA fluxes generated in the inner heliosheath, and that any attempt to reconstruct the shape of the heliospheric boundary needs to include the depletion correction, unless arriving at considerably erroneous results.