onepower.ia.SatelliteAlignment

class onepower.ia.SatelliteAlignment(*args, **kwargs)

A class to compute the alignment properties of satellite galaxies within dark matter halos. This includes calculating the Hankel transform, radial profiles, and other related quantities.

Methods

I_x(a, b)	Compute the integral of (1 - x^2)^(a/2) * x^b from -1 to 1.
__init__([mass_in, c_in, r_s_in, rvir_in, ...])
broken_powerlaw(xlum, pdf, gamma_2h_lum, l0, ...)	Compute the broken power law.
calculate_f_ell(ell, gamma_b)	Computes the angular part of the satellite intrinsic shear field.
clone(**kwargs)	Create and return an updated clone of the current object.
compute_luminosity_pdf(z_loglum_file, nlbins)	Compute the luminosity PDF.
gamma_r_nfw_profile(r, rs, rvir, a, b[, ...])	Compute the radial profile of the NFW (Navarro-Frenk-White) profile with a power-law correction.
get_all_parameter_defaults([recursive])	Dictionary of all parameters and defaults.
get_all_parameter_names()	Yield all parameter names in the class.
get_dependencies(*q)	Determine all parameter dependencies of the quantities in q.
mean_l_l0_to_beta(xlum, pdf, l0, beta)	Compute the mean luminosity scaling.
parameter_info([names])	Prints information about each parameter in the class.
quantities_available()	Obtain a list of all available output quantities.
update(**kwargs)	Update parameters of the framework with kwargs.
upsampled_wkm(k_vec_out, mass_out)	Interpolates the wkm profiles and upsamples back to the original grid.
validate()	Perform validation of the input parameters as they relate to each other.

Attributes

alignment_gi	Compute the alignment_gi based on the central galaxies' properties.
beta_cen	Beta parameter for central galaxies.
beta_sat	float Beta parameter for satellite galaxies.
c	Downsampled c_in if method == hankel, c_in otherwise.
c_in	Concentration parameter.
central_ia_depends_on	Validate the central intrinsic alignment dependencies.
compute_uell_gamma_r_hankel	Computes a 4D array containing u_ell as a function of l, z, m, and k.
ell_max	Maximum multipole moment.
ell_values	Sets the ell values array.
gamma_1h_amp	Compute the gamma_1h_amplitude based on the satellite galaxies' properties.
gamma_1h_amplitude	Amplitude for 1-halo term.
gamma_1h_slope	Slope for 1-halo term.
gamma_2h_amplitude	Amplitude for 2-halo term.
hankel	Initialize Hankel transform.
k_vec	Sets the k vector array.
lpivot_cen	Pivot luminosity for central galaxies.
lpivot_sat	Pivot luminosity for satellite galaxies.
lum_centrals	Returns the luminosity array for centrals.
lum_pdf_z_centrals	Returns the luminosity array for satellites.
lum_pdf_z_satellites	Returns the luminosity PDF array for satellites.
lum_satellites	Returns the luminosity PDF array for centrals.
mass	Downsampled mass_in if method == hankel, mass_in otherwise.
mass_in	Array of halo masses.
method	Which method to perform Fourier/Hankel transform to use
mpivot_cen	Pivot mass for central galaxies.
mpivot_sat	Pivot mass for satellite galaxies.
n_hankel	Number of steps in the Hankel transform integration.
nk	Number of k bins.
nmass	Number of mass bins.
parameter_values	Dictionary of all parameters and their current values
r_s	Downsampled r_s_in if method == hankel, r_s_in otherwise.
r_s_in	Scale radius.
rvir	Downsampled rvir_in if method == hankel, rvir_in otherwise.
rvir_in	Virial radius.
satellite_ia_depends_on	Validate the satellite intrinsic alignment dependencies.
truncate	Whether to truncate the NFW profile at the virial radius.
wkm	Return the computed wkm_f_ell values along with the redshift, mass, and k vectors.
wkm_f_ell	Integral of the angular part in eq B8 (SB10) using the Legendre polynomials assuming theta_e=theta, phi_e=phi (perfect radial alignment).
z_loglum_file_centrals	File path for central galaxy luminosity data.
z_loglum_file_satellites	File path for satellite galaxy luminosity data.
z_vec	Redshift vector.