power_spectral_density
- legwork.psd.power_spectral_density(f, instrument='LISA', custom_psd=None, t_obs='auto', L='auto', approximate_R=False, confusion_noise='auto')[source]
Calculates the effective power spectral density for all instruments.
- Parameters
- ffloat/array
Frequencies at which to evaluate the sensitivity curve
- instrument: {{ `LISA`, `TianQin`, `custom` }}
Instrument to use. LISA is used by default. Choosing custom uses
custom_psdto compute PSD.- custom_psdfunction
Custom function for computing the PSD. Must take the same arguments as
legwork.psd.lisa_psd()even if it ignores some.- t_obsfloat
Observation time (default 4 years for LISA and 5 years for TianQin)
- Lfloat
LISA arm length in metres
- approximate_Rboolean
Whether to approximate the response function (default: no)
- confusion_noisevarious
Galactic confusion noise. Acceptable inputs are either one of the values listed in
legwork.psd.get_confusion_noise(), “auto” (automatically selects confusion noise based on instrument - ‘robson19’ if LISA and ‘huang20’ if TianQin), or a custom function that gives the confusion noise at each frequency for a given mission length where it would be called by running noise(f, t_obs) and return a value with units of inverse Hertz
- Returns
- psdfloat/array
Effective power strain spectral density