dustem_plugin_mbbdy_isrf.pro
2.82 KB
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FUNCTION dustem_plugin_mbbdy_isrf, key=key,val=val,scope=scope,paramtag=paramtag,help=help
;+
; NAME:
; dustem_plugin_mbbdy
; PURPOSE:
; DUSTEM plugin to compute modified black-body emission
; CATEGORY:
; DUSTEM Wrapper
; CALLING SEQUENCE:
; output=dustem_plugin_mbbdy([,key=][,val=])
; INPUTS:
; None
; OPTIONAL INPUT PARAMETERS:
; key = input parameter number
; val = input parameter value
; OUTPUTS:
; output = MBB spectrum (on dustem wavelengths) (output[*,0] is Stokes I, output[*,1] Stokes Q and output[*,2] Stokes U)
; OPTIONAL OUTPUT PARAMETERS:
; None
; ACCEPTED KEY-WORDS:
; help = if set, print this help
; COMMON BLOCKS:
; None
; SIDE EFFECTS:
; None
; RESTRICTIONS:
; None
; PROCEDURE:
; This is a dustem plugin
; EXAMPLES
;
; MODIFICATION HISTORY:
; Written by JPB
;-
IF keyword_set(help) THEN BEGIN
doc_library,'dustem_plugin_mbbdy_isrf'
output=0.
goto,the_end
ENDIF
;default values of input parameters
amp = 0.5 ; Amplitude of the modified black-body emission
temp = 40 ; Temperature of the dust species
beta = 1.8 ; Emissivity index
lambref = 250 ;microns
;default polarization values
smallp=0.
psi=0.
paramtag=['Amp','beta (Plaw_index)','p','Psi (deg)']
IF keyword_set(key) THEN BEGIN
ind1=where(key EQ 1,count1) ; reading amp
ind2=where(key EQ 2,count2) ; reading beta
;In the case this plugin is used in polarization
ind3=where(key EQ 3,count3) ; reading smallp
ind4=where(key EQ 4,count4) ; reading psi
IF count1 NE 0 then amp=val[ind1[0]] ;else default value
IF count2 NE 0 then beta=val[ind2[0]] ; // //
IF count3 NE 0 then smallp=val[ind3[0]] ; // //
IF count4 NE 0 then psi=val[ind4[0]] ; // //
ENDIF
;********YOU NEEED TO MAKE SURE THAT LAMBIR AND MA_ISRF.LAMBISRF ARE THE SAME********
;************************************************************************************
;integrating the mathis isrf
ma_isrf_dat=!dustem_soft_dir+'data/ISRF_MATHIS.DAT'
ma_isrf=dustem_read_isrf(ma_isrf_dat)
un=uniq(ma_isrf.isrf)
int_mathis=INT_TABULATED((ma_isrf.lambisrf)[un],(ma_isrf.isrf)[un])
;integrating the composite isrf
int_isrf=INT_TABULATED((ma_isrf.lambisrf)[un],((*(*!dustem_plugin).stellar_population))[un])
;lambir=dustem_get_wavelengths()
lambir=dustem_get_wavelengths()
Nwavs=n_elements(lambir)
tau_o_nh = 1.00E-25*(*!dustem_HCD)*(lambir/lambref)^(-1.*beta)
;fact = 1.e4*(*!dustem_HCD)/(4.*!pi)/(3.e8/1.e-6/ma_isrf.lambisrf)*1.e20/1.e7
tempref=19.00 ;K
temp=tempref*(int_isrf/int_mathis)^(1./(4+beta))
;stop
spec=amp*tau_o_nh*dustem_planck_function(temp,lambir)
;stop
output=fltarr(Nwavs,3)
output[*,0]=spec
;polarization this actually need to
polar_ippsi2iqu,output[*,0],Q,U,replicate(smallp,Nwavs),replicate(psi,Nwavs)
output[*,1]=Q
output[*,2]=U
scope='ADD_SED+ADD_QSED+ADD_USED'
the_end:
RETURN,output
END