Anisotropy of the He+, C+, N+, O+, and Ne+ pickup ion velocity distribution functions

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Table 1

Parameters of the mass-per-charge model, I(m/q), for the individual heavy pickup ion species

Ion	μ [amu/e]	σ_l [amu/e]	σ_r [amu/e]	κ

C⁺	≡12.0	0.91	1.18	1.59
N⁺	≡14.0	0.91	1.18	1.59
O⁺	≡16.0	0.91	1.18	1.59
Fe³⁺	18.2	0.91	1.18	1.59
Ne⁺	19.5	0.91	1.72	0.64
Mg⁺	23.3	0.91	1.72	0.64
Fe²⁺	27.2	0.91	1.72	0.64

Notes. Values printed in bold were determined by a fit (see text for details). Parameter values for C⁺, N⁺, and Fe³⁺ showed no significant deviation from the parameters obtained for O⁺. Values for Mg⁺ and Fe²⁺, on the other hand, showed no significant deviations from the values obtained for Ne⁺.

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