pint.derived_quantities.pulsar_B

pint.derived_quantities.pulsar_B(f: Quantity, fdot: Quantity)

Compute pulsar surface magnetic field

Return the estimated pulsar surface magnetic field strength given the spin frequency and frequency derivative.

Parameters:

• f (astropy.units.Quantity) – pulsar frequency

• fdot (astropy.units.Quantity) – frequency derivative \(\dot f\)

Returns:

B – pulsar dipole magnetic field in u.G

Return type:

astropy.units.Quantity

Raises:

• astropy.units.UnitsError – If the input data are not appropriate quantities

• TypeError – If the input data are not quantities

Notes

Calculates \(B=3.2\\times 10^{19}\\,{\\rm G}\\sqrt{ f \dot f^{-3}}\)