skypy.power_spectrum.transfer_with_wiggles¶
- skypy.power_spectrum.transfer_with_wiggles(wavenumber, A_s, n_s, cosmology, kwmap=0.02)[source] [edit on github]¶
Eisenstein & Hu transfer function with wiggles. This function returns the Eisenstein & Hu fitting formula for the transfer function with baryon acoustic oscillation wiggles. This is described in [1] and [2].
- Parameters:
- wavenumber(nk,) array_like
Array of wavenumbers in units of Mpc-1 at which to evaluate the linear matter power spectrum.
- cosmologyastropy.cosmology.Cosmology
Cosmology object providing omega_matter, omega_baryon, Hubble parameter and CMB temperature at the present day.
- A_s, n_s: float
Amplitude and spectral index of primordial scalar fluctuations.
- kwmapfloat
WMAP normalization for the amplitude of primordial scalar fluctuations, as described in [3], in units of Mpc-1. Default is 0.02.
- Returns:
- transfer(nk,) array_like
Transfer function evaluated at the given array of wavenumbers for the input primordial power spectrum parameters A_s and n_s, cosmology and kwmap normalization.
References