FieldLine¶
-
class
pfsspy.fieldline.
FieldLine
(x, y, z, output)¶ Bases:
object
A single magnetic field line.
- Parameters
y, z (x,) – Field line coordinates in cartesian coordinates.
output (Output) – The PFSS output through which this field line was traced.
Attributes Summary
Field line
SkyCoord
.Magnetic field expansion factor.
Returns
True
if one of the field line is connected to the solar surface and one to the outer boundary,False
otherwise.Magnetic field line polarity.
Solar surface magnetic field footpoint.
Solar surface magnetic field footpoint.
Attributes Documentation
-
expansion_factor
¶ Magnetic field expansion factor.
The expansion factor is defnied as \((r_{\odot}^{2} B_{\odot}) / (r_{ss}^{2} B_{ss}))\)
- Returns
exp_fact – Field line expansion factor.
- Return type
-
is_open
¶ Returns
True
if one of the field line is connected to the solar surface and one to the outer boundary,False
otherwise.
-
polarity
¶ Magnetic field line polarity.
- Returns
pol – 0 if the field line is closed, otherwise sign(Br) of the magnetic field on the solar surface.
- Return type
-
solar_footpoint
¶ Solar surface magnetic field footpoint.
This is the ends of the magnetic field line that lies on the solar surface.
- Returns
footpoint
- Return type
Notes
For a closed field line, both ends lie on the solar surface. This method returns the field line pointing out from the solar surface in this case.
-
source_surface_footpoint
¶ Solar surface magnetic field footpoint.
This is the ends of the magnetic field line that lies on the solar surface.
- Returns
footpoint
- Return type
Notes
For a closed field line, both ends lie on the solar surface. This method returns the field line pointing out from the solar surface in this case.