TaylorF2
This file implements the TaylorF2 waveform, as described in the LALSuite library.
Functions:
| Name | Description |
|---|---|
gen_TaylorF2 |
Generate TaylorF2 frequency domain waveform |
gen_TaylorF2_hphc |
Generate PhenomD frequency domain waveform following 1508.07253. |
get_PNPhasing_F2 |
Gets dictionaries giving the phasing coefficients to be used in the approximant. |
gen_TaylorF2(f: Float[Array, ' n_freq'], params: Float[Array, 9], f_ref: float, use_lambda_tildes: bool = True) -> Complex[Array, ' n_freq']
¤
Generate TaylorF2 frequency domain waveform
vars array contains both intrinsic and extrinsic variables theta = [Mchirp, eta, chi1, chi2, lambda1, lambda1, D, tc, phic] Mchirp: Chirp mass of the system [solar masses] eta: Symmetric mass ratio [between 0.0 and 0.25] chi1: Dimensionless aligned spin of the primary object [between -1 and 1] chi2: Dimensionless aligned spin of the secondary object [between -1 and 1] lambda tilde: Dimensionless tidal deformability first object [between 0 and 5000] delta lamda tilde: Dimensionless tidal deformability second object [between 0 and 5000] D: Luminosity distance to source [Mpc] tc: Time of coalesence. This only appears as an overall linear in f contribution to the phase phic: Phase of coalesence
f_ref: Reference frequency for the waveform
Returns:
| Name | Type | Description |
|---|---|---|
h0 |
array
|
Strain |
gen_TaylorF2_hphc(f: Float[Array, ' n_freq'], params: Float[Array, 10], f_ref: float, use_lambda_tildes: bool = True) -> tuple[Complex[Array, ' n_freq'], Complex[Array, ' n_freq']]
¤
Generate PhenomD frequency domain waveform following 1508.07253. vars array contains both intrinsic and extrinsic variables theta = [Mchirp, eta, chi1, chi2, D, tc, phic] Mchirp: Chirp mass of the system [solar masses] eta: Symmetric mass ratio [between 0.0 and 0.25] chi1: Dimensionless aligned spin of the primary object [between -1 and 1] chi2: Dimensionless aligned spin of the secondary object [between -1 and 1] lambda1: Dimensionless tidal deformability of the primary object [between 0 and 5000] lambda2: Dimensionless tidal deformability of the secondary object [between 0 and 5000] D: Luminosity distance to source [Mpc] tc: Time of coalesence. This only appears as an overall linear in f contribution to the phase phic: Phase of coalesence inclination: Inclination angle of the binary [between 0 and PI]
f_ref: Reference frequency for the waveform
Returns:
| Name | Type | Description |
|---|---|---|
hp |
array
|
Strain of the plus polarization |
hc |
array
|
Strain of the cross polarization |
get_PNPhasing_F2(m1: float, m2: float, S1z: float, S2z: float, lambda1: float, lambda2: float) -> tuple[dict[str, float], dict[str, float]]
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Gets dictionaries giving the phasing coefficients to be used in the approximant. Keys are the different PN orders, with values being the corresponding coefficient. This follows the implementation of XLALSimInspiralPNPhasing_F2 from lalsuite.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
m1
|
float
|
Mass of first (heavier) object |
required |
m2
|
float
|
Mass of second (lighter) object |
required |
S1z
|
float
|
z-component of spin of first object |
required |
S2z
|
float
|
z-component of spin of second object |
required |
lambda1
|
float
|
Tidal deformability first object |
required |
lambda2
|
float
|
Tidal deformability first object |
required |
Returns:
| Type | Description |
|---|---|
tuple[dict[str, float], dict[str, float]]
|
tuple[dict, dict]: phasing_coeffs, phasing_log_coeffs as defined in the LAL source code, coefficients for various PN orders. |