rm_lite.utils.simulate

Synthetic FDF data: the single source of truth for simulated RM-synthesis

Functions

faraday_gaussian_spectrum(...)

External-dispersion channel Q + iU: Gaussian RM scatter sigma_rm_radm2.

faraday_simple_spectrum(...)

Faraday-thin channel Q + iU: a single RM, flat polarised fraction.

faraday_slab_spectrum(...)

Burn slab channel Q + iU: Faraday-thick, full thickness delta_rm_radm2.

Module Contents

rm_lite.utils.simulate.faraday_gaussian_spectrum(lambda_sq_arr_m2: numpy.typing.NDArray[numpy.float64], frac_pol: float, psi0_deg: float, rm_radm2: float, sigma_rm_radm2: float) → numpy.typing.NDArray[numpy.complex128]

External-dispersion channel Q + iU: Gaussian RM scatter sigma_rm_radm2.

Parameters:

  • lambda_sq_arr_m2 (NDArray[np.float64]) – Channel lambda^2 in m^2.

  • frac_pol (float) – Polarised fraction.

  • psi0_deg (float) – Intrinsic polarisation angle in degrees.

  • rm_radm2 (float) – Central RM in rad/m^2.

  • sigma_rm_radm2 (float) – Faraday dispersion sigma in rad/m^2.

Returns:

Channel Q + iU.

Return type:

NDArray[np.complex128]

rm_lite.utils.simulate.faraday_simple_spectrum(lambda_sq_arr_m2: numpy.typing.NDArray[numpy.float64], frac_pol: float, psi0_deg: float, rm_radm2: float) → numpy.typing.NDArray[numpy.complex128]

Faraday-thin channel Q + iU: a single RM, flat polarised fraction.

Parameters:

  • lambda_sq_arr_m2 (NDArray[np.float64]) – Channel lambda^2 in m^2.

  • frac_pol (float) – Polarised fraction.

  • psi0_deg (float) – Intrinsic polarisation angle in degrees.

  • rm_radm2 (float) – RM in rad/m^2.

Returns:

Channel Q + iU.

Return type:

NDArray[np.complex128]

rm_lite.utils.simulate.faraday_slab_spectrum(lambda_sq_arr_m2: numpy.typing.NDArray[numpy.float64], frac_pol: float, psi0_deg: float, rm_radm2: float, delta_rm_radm2: float) → numpy.typing.NDArray[numpy.complex128]

Burn slab channel Q + iU: Faraday-thick, full thickness delta_rm_radm2.

Parameters:

  • lambda_sq_arr_m2 (NDArray[np.float64]) – Channel lambda^2 in m^2.

  • frac_pol (float) – Polarised fraction.

  • psi0_deg (float) – Intrinsic polarisation angle in degrees.

  • rm_radm2 (float) – Central RM in rad/m^2.

  • delta_rm_radm2 (float) – Full Faraday thickness in rad/m^2.

Returns:

Channel Q + iU.

Return type:

NDArray[np.complex128]