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Table 1.
Summary of plasma and magnetic parameters associated with studied ICMEs. Y = yes, ‘–’ = not observed.
| Characteristics | 20 November 2003 ICME | 4 August 2010 ICME |
|---|---|---|
| Tp, Te, decrease | Y | Y |
| Anisotropy Tp | ≥1 | ≥1 |
| Anisotropy Te | ≥1 | ≤1 |
| B increase | Y | Y |
| Proton, electron, ion and helium density increase | Y | Y |
| He++/H+ and He+/He++ abundance ratio increase | Y | Y |
| He+ presence | Y | Y |
| Decrease in carbon and oxygen charge states | Y | Y |
| Decrease in iron charge states | – | Y |
| Presence of trailing plasma outside MC | Y | Y |
| Filament plasma position in MC | Behind MC axis | Behind MC axis |
| Filament plasma location in MC | Rear | Rear |
| Depression in RMS deviations of Vth, V, Tp and B | Y | Y |
| Radial extension of filament plasma | 0.07 AU | 0.19 AU |
| Ratio of radial extension of filament plasma and MC | 0.36 | 0.79 |
| Decrease in thermal velocities | Y | Y |
| Freezed-in temperature depressions | Y | Y |
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