ModelData

class measure_extinction.modeldata.ModelData(modelfiles, path='./', band_names=['U', 'B', 'V', 'J', 'H', 'K'], spectra_names=['BAND', 'STIS'])

Bases: object

Provide stellar atmosphere model “observed” data given input stellar, gas, and dust extinction parameters.

Parameters:

modelfiles: string array

set of model files to use

pathstring, optional

path for model files

band_namesstring array, optional

bands to use default = [‘U’, ‘B’, ‘V’, ‘J’, ‘H’, ‘K’]

spectra_namesstring array, optional

origin of the spectra to use default = [‘STIS’]

Attributes:

n_modelsint

number of stellar atmosphere models

model_filesstring array

filenames for the models

tempsfloat array

log10(effective temperatures)

gravsfloat array

log10(surface gravities)

metsfloat array

log10(metallicities)

vturbsfloat array

microturbulance values [km/s]

n_bandsint

number of photometric bands

band_namesstring array

names of the photometric bands

n_spectraint

number of different types of spectra

spectra_namesstring array

identifications for the spectra data (includes band data)

wavesn_spectra dict

wavelengths for the spectra

fluxesn_spectra dict

fluxes in the bands

flux_uncsn_spectra list

flux uncertainties in the bands

Methods Summary

SED_to_StarData(sed)	Convert the model created SED into a StarData object.
dust_extinguished_sed(params, sed[, velocity])	Dust extinguished sed given the extinction parameters
dust_extinguished_sed_FM90_G23(params, sed)	Dust extinguished sed given the extinction parameters
hi_abs_sed(params, hi_velocities, sed)	HI abs sed given the HI columns
stellar_sed(params[, velocity])	Compute the stellar SED given model parameters

Methods Documentation

SED_to_StarData(sed)

Convert the model created SED into a StarData object. Needed to plug into generating an ExtData object.

Parameters:

sedobject

SED of each component

dust_extinguished_sed(params, sed, velocity=0.0)

Dust extinguished sed given the extinction parameters

Parameters:

paramsfloat array

dust extinction parameters [Av, Rv, c2, c3, c4, gamma, x0]

seddict

fluxes for each spectral piece

velocityfloat, optional

velocity of dust

Returns:

extinguished seddict

SED with {‘bands’: band_sed, ‘spec’: spec_sed, …}

dust_extinguished_sed_FM90_G23(params, sed, velocity=0.0)

Dust extinguished sed given the extinction parameters

Parameters:

paramsfloat array

dust extinction parameters [Av, Rv, c2, c3, c4, gamma, x0]

seddict

fluxes for each spectral piece

velocityfloat, optional

velocity of dust

Returns:

extinguished seddict

SED with {‘bands’: band_sed, ‘spec’: spec_sed, …}

hi_abs_sed(params, hi_velocities, sed)

HI abs sed given the HI columns

Parameters:

paramsfloat array

hi columns [log(HI_MW), log(HI_gal)]

hi_velocitiesfloat array

hi velocities in km/sec [vel_MW, vel_gal]

seddict

fluxes for each spectral piece

Returns:

hi absorbed seddict

SED with {‘bands’: band_sed, ‘spec’: spec_sed, …}

stellar_sed(params, velocity=None)

Compute the stellar SED given model parameters

Parameters:

paramsfloat array

stellar atmosphere parameters [logT, logg, logZ]

velocityfloat

stellar velocity in km/s

Returns:

seddict

SED with {‘bands’: band_sed, ‘spec’: spec_sed, …}