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Table 1

Parameters of SW minor ions included in simulations.

Ion [X+q/O] Abundance Cross section (10-15 cm2)
Slow SWa Real-Timeb CX with H CX with Oc

C+6 0.318 0.13  ±  0.06 4.2 5
C+5 0.21 0.37  ±  0.03 4.0 2
N+7 0.006 no data 5.7 12
N+6 0.058 no data 3.7 5
O+8 0.07  ≤ 0.002 5.7 6
O+7 0.20 0.04  ±  0.02 3.4 12
He++ 78  ±  4 92  ±  3

He/H 0.044  ±  0.003 0.045

Notes. 

(b)

From ACE-SWICS.

(c)

From Schwadron & Cravens (2000), based on the assumption that atomic O has similar weight to H2O.

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