dustem_plugin_synchrotron.pro
1.94 KB
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FUNCTION dustem_plugin_synchrotron,key=key,val=val,scope=scope,paramtag=paramtag,help=help
;+
; NAME:
; dustem_plugin_synchrotron
; PURPOSE:
; DUSTEM plugin to compute synchrotron emission
; CATEGORY:
; DUSTEM Wrapper
; CALLING SEQUENCE:
; synch=dustem_plugin_synchrotron([,key=][,val=])
; INPUTS:
; None
; OPTIONAL INPUT PARAMETERS:
; key = input parameter number
; val = input parameter value
; OUTPUTS:
; synch = synch spectrum (on dustem wavelengths)
; 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_synchrotron'
output=0.
goto,the_end
ENDIF
;default values of input parameters
s=3 ;power spectrum of CR E distribution
A=1 ;Synchrotron radiation amplitude at 10 mm
psi=0. ;default polarization angle
smallp=0.3;0.3 ;default polarization fraction
paramtag=['s (plaw_index)','Amp','Psi (deg)','p']
IF keyword_set(key) THEN BEGIN
ind1=where(key EQ 1,count1)
ind2=where(key EQ 2,count2)
ind3=where(key EQ 3,count3)
ind4=where(key EQ 4,count4)
IF count1 NE 0 then s=val[ind1[0]] ;else s=3
IF count2 NE 0 then A=val[ind2[0]] ;else A=1
IF count3 NE 0 then smallp=val[ind3[0]]
IF count4 NE 0 then psi=val[ind4[0]]
ENDIF
lambir=dustem_get_wavelengths()
Nwavs=n_elements(lambir)
cmic=3.e14
nu=cmic/lambir
lambir_ref=10000.
;see Deschenes et al 2008, eq 6
output=fltarr(Nwavs,3)
output[*,0]=nu^(-(s+3.)/2.)
norm=interpol(output[*,0],lambir,lambir_ref)
output[*,0]=A*output[*,0]/norm
;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