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Table 1.
CME input parameters used in EUHFORIA simulations of Event 1 (12 July 2012).
| Input parameters | |||
|---|---|---|---|
| CME model | spheromak | FRi3D | Horseshoe |
| Geometrical | |||
| Insertion time | 12 July 2012 19:24 | 12 July 2012 19:02 | 12 July 2012 19:28 |
| Radial speed | 763 km s−1 | 664 km s−1 | 683 km s−1 |
| Latitude | −8° | −8° | −6° |
| Longitude | −4° | −4° | 0° |
| Half-width | – | 38° | 48° |
| Half-height | – | 36.8° | 11° |
| Radius | 16.8 R⊙ | – | – |
| Minor radius | – | – | 6 R⊙ |
| Major radius | – | – | 10 R⊙ |
| Toroidal height | – | 12.29 R⊙ | – |
| Deformation | |||
| Flattening | – | 0.3 | – |
| Pancaking | – | 0.44 | – |
| Skew | – | 0 | – |
| Magnetic field | |||
| Chirality | +1 | −1( * ) | +1 |
| Polarity | – | −1 | – |
| Tilt | −135° | 45° | 129° |
| Toroidal magnetic flux | 1 ⋅ 1014 Wb | – | – |
| Total magnetic flux | 2.4 ⋅ 1014 Wb | 0.5 ⋅ 1014 Wb | – |
| Axial magnetic field strength | – | – | 2.1 ⋅ 10−6 nT |
| Twist | – | 1.0 | – |
| Plasma parameters | |||
| Mass density | 10−18 kg m−3 | 10−17 kg m−3 | 10−17 kg m−3 |
| Temperature | 0.8 ⋅ 106 K | 0.8 ⋅ 106 K | 0.8 ⋅ 106 K |
Notes. ( * )FRi3D chirality is implemented with the opposite convention, that is, −1 for right-handedness and +1 for left-handedness.
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