Table 2
Magnetic properties of HN Peg extracted from the ZDI maps.
| Dates | No of | v r | B mean | Pol | Tor | Dipole | Quad | Oct | Axi | Ωeq | dΩ | ||
| (in frac.years) | obs | (km s-1) | (G) | (%tot) | (%tot) | (%pol) | (%pol) | (%pol) | (%tot) | (rad d-1) | (rad d-1) | ||
|
|
|||||||||||||
| 2007.67 | 14 | –16.60±0.17 | 18±0.5 | 57±4 | 43±24 | 54±4 | 22±4 | 9±1 | 69±15 | 1.36±0.01 | 0.22±0.03 | ||
| 2008.71 | 10 | –16.67±0.04 | 14±0.3 | 49±12 | 51±16 | 35±3 | 15±2 | 17±1 | 54±21 | – | – | ||
| 2009.54 | 11 | –16.63±0.20 | 11±0.2 | 89±23 | 11±11 | 42±4 | 11±3 | 14±1 | 45±21 | – | – | ||
| 2010.62 | 11 | –16.65±0.02 | 19±0.8 | 65±13 | 35±10 | 33±4 | 13±3 | 12±2 | 44±20 | – | – | ||
| 2011.67 | 8 | –16.66±0.08 | 19±0.7 | 61±22 | 39±18 | 25±4 | 19±3 | 16±1 | 38±21 | – | – | ||
| 2013.68 | 13 | –16.66±0.03 | 24±0.7 | 62±4 | 38±24 | 57±4 | 17±4 | 6±1 | 77±10 | 1.27±0.01 | 0.22±0.02 | ||
Notes. The columns represent fractional dates, number of observations, radial velocity (vr), mean magnetic field strength (Bmean), fraction of magnetic energy reconstructed as the poloidal component, fraction of the large scale magnetic field energy reconstructed as toroidal component, fraction of poloidal magnetic field stored as dipole, quadrupole and octopole, fraction of the total magnetic energy in the axisymmetric component of the magnetic field and finally the differential rotation parameters Ωeq and dΩ.
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