pint.derived_quantities.pulsar_B_lightcyl
- pint.derived_quantities.pulsar_B_lightcyl(f: ~astropy.units.quantity.Quantity, fdot: ~astropy.units.quantity.Quantity, I: ~astropy.units.quantity.Quantity = <Quantity 1.e+45 cm2 g>, R=<Quantity 10. km>) -> Unit("G")[source]
Compute pulsar magnetic field at the light cylinder
Return the estimated pulsar magnetic field strength at the light cylinder given the spin frequency and frequency derivative.
- Parameters:
f (astropy.units.Quantity) – pulsar frequency
fdot (astropy.units.Quantity) – frequency derivative \(\\dot f\)
I (astropy.units.Quantity, optional) – pulsar moment of inertia, default of 1e45 g*cm**2
R (astropy.units.Quantity, optional) – pulsar radius, default of 10 km
- Returns:
Blc – pulsar dipole magnetic field at the light cylinder in
u.G- Return type:
- Raises:
astropy.units.UnitsError – If the input data are not appropriate quantities
TypeError – If the input data are not quantities
Notes
Calculates \(B_{LC} = \\sqrt{\\frac{-24\\pi^4\\,I}{c^3}\\dot{f}f^3}\)