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Table 1.
Selected radial gradients obtained in the heliosphere by McDonald et al. (1977), Webber et al. (1981), Bialk (1996), and this study.
| Distance range | Gr | Energy |
|---|---|---|
| (AU) | (% AU−1) | (MeV) |
| From McDonald et al. (1977) | ||
| 1.25–4.2 | 4.1 ± 3.7 | 210–275 |
| 1.25–4.2 | 2 ± 4 | 275–380 |
| 1.25–4.2 | 1.3 ± 5 | 380–460 |
| 1–3.8 | 0 ± 4 | 210–275 |
| 1–3.8 | 2.5 ± 4 | 275–380 |
| 1–3.8 | 3.8 ± 5 | 380–460 |
| From Webber & Lockwood (1981) | ||
| 2–28 | 2.5 ± 0.5 | >60 |
| This study | ||
| 0.4–1 | 6.6 ± 4 | >50 |
| 0.3–1 | 2 ± 2.5 | 250–700 |
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