snsim.scatter

This package contains the scattering effects.

Classes

G10	Guy (2010) SNe Ia non-coherent scattering.
C11	C11 scattering effect for sncosmo.

Functions

init_sn_sct_model(sct_mod, *args)	Add scattering effect on sncosmo model.
gen_BS20_scatter(n_sn[, par_names, seed])	Generate n coherent mag scattering term.

Module Contents

snsim.scatter.init_sn_sct_model(sct_mod, *args)

Add scattering effect on sncosmo model.

Parameters:

sct_mod (str) – Name of the model to use.

Return type:

None

class snsim.scatter.G10(SALTsource)

Bases: sncosmo.PropagationEffect

Guy (2010) SNe Ia non-coherent scattering.

Implementation is done following arxiv:1209.2482.

Initialize G10 class.

param_names_latex = ['\\lambda_0', 'F_0', 'F_1', 'd_L', 'RndS']

compute_sigma_nodes()

Computes the sigma nodes.

propagate(wave, flux)

Propagate the effect to the flux.

class snsim.scatter.C11

Bases: sncosmo.PropagationEffect

C11 scattering effect for sncosmo. Use COV matrix between the vUBVRI bands from N. Chottard thesis.

Implementation is done following arxiv:1209.2482.

Initialise C11 class.

param_names_latex = ['\rho_\\mathrm{vU}', 'S_f', 'RndS']

build_cov()

propagate(wave, flux)

Propagate the effect to the flux.

snsim.scatter.gen_BS20_scatter(n_sn, par_names=['beta_sn', 'Rv', 'E_dust', 'c_int'], seed=None)

Generate n coherent mag scattering term.

Parameters:

• n (int) – Number of mag scattering terms to generate.

• seed (int, optional) – Random seed.

Returns:

numpy array containing scattering terms generated.

Return type:

numpy.ndarray(float)