BINNED_STELLAR_SPECTRUM#

Name#

BINNED_STELLAR_SPECTRUM

Purpose#

Generates the attenuated stellar model spectra for the non-parametric SFH. The output model spectra depend on the age bins and attenuation.

Calling Sequence#

Lnu_spec_stellar = binned_stellar_spectrum(stellar_models, psi [, atten_curve = , $
                                tauV_diff = , delta = , tauV_BC = , tauB_f = , F_clump = , $
                                cosi = , b_to_d = , rold0_ages = , atten_models = , /uv_bump, $
                                /error_check, steps_Lnu_spec=steps_Lnu_spec, $
                                Lnu_spec_unred_stellar=Lnu_spec_unred_stellar,$
                                Lbol_abs_stellar=Lbol_abs_stellar, steps_Lbol_abs=steps_Lbol_abs])

Inputs#

stellar_modelsstructure: A structure containing the spectra, SEDs, and stellar parameters for the non-parametric stellar model. (See binned_stellar_models.pro for details and contents.)
psiint, float, or double array(Nsteps, Nmodels): The non-parametric SFH coefficients \([M_\odot\ {\rm yr}^{-1}]\).

Optional Inputs#

atten_curvestring scalar: The name of the attenuation curve to apply to the stellar models. Current options are 'CALZETTI00', 'CALZETTI_MOD', and 'DOORE21'. (Default = 'CALZETTI00')
tauV_diffint, float, or double array(Nmodels): The V-band optical depth of the diffuse dust for the Calzetti attenuation. (Default = 1.0)
deltaint, float, or double array(Nmodels): The power law value to change the attenuation curve slope for the Calzetti attenuation. (Default = 0.d0)
tauV_BCint, float, or double array(Nmodels): The V-band optical depth of the birth cloud for the Calzetti attenuation. (Default = 0.0)
tauB_fint, float, or double array(Nmodels): The face-on optical depth in the B-band for the Doore attenuation. (Default = 1.0)
F_clumpint, float, or double array(Nmodels): The clumpiness factor F for the Doore attenuation. (Default = 0.0)
cosiint, float, or double array(Nmodels): The inclination of the galactic disk in terms of cos(i) for the Doore attenuation. (Default = 1.d0)
b_to_dint, float, or double array(Nmodels): The bulge-to-disk ratio for the Doore attenuation. (Default = 0.0)
rold0_agesint, float, or double array(Nsteps): The binary parameter rold0, designating each SFH age bin as part of the young or old population when using the Doore attenuation. A value of 0 for the corresponding age bin considers it to be part of the young population, and a value of 1 considers it to be part of the old populations. (Default = Ages < 500 Myr are 0 else 1)
atten_modelsstructure: A structure containing the preloaded files for the Doore attenuation.
uv_bumpflag: If set, then a 2175 Angstrom UV bump feature will be added to the attenuation curve.
error_checkflag: If set, all inputs are checked for errors. Otherwise, all inputs are assumed to be of correct format.

Output#

Lnu_spec_stellardouble array(Nwave, Nmodels): The luminosity spectrum for each set of stellar model parameters at each wavelength \([L_\odot\ {\rm Hz}^{-1}]\).

Optional Outputs#

steps_Lnu_specdouble array(Nwave, Nsteps, Nmodels): The luminosity spectrum for each SFH age bin and set of stellar model parameters at each wavelength \([L_\odot\ {\rm Hz}^{-1}]\).
Lnu_spec_unred_stellardouble array(Nwave, Nmodels): The unattenuated luminosity spectrum for each set of stellar model parameters at each wavelength \([L_\odot\ {\rm Hz}^{-1}]\).
Lbol_abs_stellardouble array(Nmodels): The bolometric luminosity of the attenuated stellar emission for each set of stellar model parameters \([L_\odot]\).
steps_Lbol_absdouble array(Nsteps, Nmodels): The bolometric luminosity of the attenuated stellar emission for each SFH age bin and set of stellar model parameters \([L_\odot]\).

Note#

Defaults will only be set if the optional error_check input is set.

Modification History#

2022/04/13: Created (Keith Doore)
2022/06/30: Updated to match format of binned_stellar_sed.pro (Keith Doore)
2022/07/07: Change name of sfh_coeff to psi (Keith Doore)
2022/07/22: Added optional output of unreddened Lnu spectrum (Keith Doore)
2022/11/15: Fixed bug with variable redshift and rold0_ages (Keith Doore)