calc_fraction

acstools.polarization_tools.calc_fraction(i, q, u, transmission_correction=1)

Method for determining the fractional polarization.

Parameters:

ifloat

Stokes I parameter.

qfloat

Stokes Q parameter.

ufloat

Stokes U parameter.

transmission_correctionfloat (Default = 1)

Correction factor to account for the leak of photons with non-parallel electric field position angles. See Section 5.3.4 of the ACS Data Handbook.

Returns:

pol_fractionfloat

Polarization fraction.