How to use the pysynphot.ArrayBandpass function in pysynphot

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github gbrammer / grizli / grizli / fitting.py View on Github external
SFR_norm = (coeffs_norm*tab_temp['sfr']).sum()*u.solMass/u.yr
    SFRv = SFR_norm / Lv_norm
    
    mass_var = ((rms_norm*tab_temp['mass'])**2).sum()
    Lv_var = ((rms_norm*tab_temp['Lv'])**2).sum()
    SFR_var = ((rms_norm*tab_temp['sfr'])**2).sum()
    
    MLv_var = MLv**2 * (mass_var/mass_norm.value**2 + Lv_var/Lv_norm.value**2)
    MLv_rms = np.sqrt(MLv_var)

    SFRv_var = SFRv**2 * (SFR_var/SFR_norm.value**2 + Lv_var/Lv_norm.value**2)
    SFRv_rms = np.sqrt(SFRv_var)
    
    vband = S.ObsBandpass('v')
    vbandz = S.ArrayBandpass(vband.wave*(1+z), vband.throughput)
    
    best_templ = utils.SpectrumTemplate(templ['wave'], templ['full'])
    fnu = best_templ.integrate_filter(vbandz)*(u.erg/u.s/u.cm**2/u.Hz)
    
    dL = cosmology.luminosity_distance(z).to(u.cm)
    Lnu = fnu*4*np.pi*dL**2
    pivotV = vbandz.pivot()*u.Angstrom
    nuV = (const.c/pivotV).to(u.Hz) 
    Lv = (nuV*Lnu).to(u.L_sun)
            
    mass = MLv*Lv
    SFR = SFRv*Lv
    
    sps = {'Lv':Lv, 'MLv':MLv, 'MLv_rms':MLv_rms, 'SFRv':SFRv, 'SFRv_rms':SFRv_rms, 'templ':best_templ}
    
    return sps

pysynphot

Python Synthetic Photometry Utilities

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Latest version published 3 years ago

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