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Table 3

Expected energy-integrated He ENA intensities.

Model Hydrodynamic Parker ad hoc
(tail – apex) (tail – apex) (tail – apex)

Case “170 km s-1
intensity 5–3 5–0.1 38–0.05
(cm-2 s-1 sr-1)
max. in spectrum 0.3–0.7 0.2–0.4 1–0.2
at energy (keV)
flux (cm-2 s-1) 25–21 5–1.5 95–5
Case “320 km s-1
intensity 11–7 15–0.2 47–0.1
(cm-2 s-1 sr-1)
max. in spectrum 0.7–5 1.3–1.5 3–0.3
at energy (keV)
flux (cm-2 s-1) 54–46 16–4 150–14

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