dustem_write_isrf_lv.pro
2.13 KB
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PRO dustem_write_isrf_lv,file,st,help=help
;+
; NAME:
; dustem_write_isrf_lv
; PURPOSE:
; Writes file ISRF.DAT used by DustemWrapper
; CATEGORY:
; Dustem
; CALLING SEQUENCE:
; dustem_write_isrf_lv,file,st[,/help]
; INPUTS:
; file : file name
; st : input ISRF structure
; OPTIONAL INPUT PARAMETERS:
; None
; OUTPUTS:
; None
; OPTIONAL OUTPUT PARAMETERS:
; None
; ACCEPTED KEY-WORDS:
; help = If set print this help
; COMMON BLOCKS:
; None
; SIDE EFFECTS:
; None
; RESTRICTIONS:
; The dustem fortran code must be installed
; The dustem idl wrapper must be installed
; PROCEDURE:
; a Stellar ISRF is added based on the content of !dustem_isrf_star_add
; EXAMPLES
;
; MODIFICATION HISTORY:
; Written by J.P. Bernard
; Contact J.-Ph. Bernard (Jean-Philippe.Bernard@irap.omp.eu) in case of problems.
;-
IF keyword_set(help) THEN BEGIN
doc_library,'dustem_fit_sed_readme'
goto,the_end
ENDIF
;=== add stellar component if needed.
;stop
ind=where(!dustem_isrf_star_add.amplitude NE 0.,Nstars)
IF Nstars NE 0 THEN BEGIN
cmic=3.e14
pc2m=3.08e16 ;1pc=3.08e16 km
rsun2m=6.957e8 ;Rsun=6.957e5 km
wave_angstroem=st.LAMBISRF*1.e4 ;mic to Angstroem
stellar_component=fltarr(n_elements(st))
FOR i=0L,Nstars-1 DO BEGIN
omega=!pi*((!dustem_isrf_star_add[i].radius*Rsun2m)/(!dustem_isrf_star_add[i].distance*pc2m))^2
Ilambda=planck(wave_angstroem,!dustem_isrf_star_add[i].temperature)/(4.*!pi) ;ergs/cm2/s/A/sr
Inu=Ilambda*st.LAMBISRF^2/cmic ;ergs/cm2/s/Hz/sr
stellar_component=stellar_component+!dustem_isrf_star_add[i].amplitude*omega*Inu ;
ENDFOR
st.isrf=st.isrf+stellar_component
ENDIF
Ncomments=6
c=strarr(Ncomments)
c(0)='# DUSTEM: exciting radiation field featuring'
c(1)='# Mathis ISRF'
c(2)='# Blackbody with T= 0.0000E+00'
c(3)='# dilution factor wdil= 1.0000E+00'
c(4)='# Nbr of points'
c(5)='# wave (microns), 4*pi*Inu (erg/cm2/s/Hz)'
openw,unit,file,/get_lun
FOR i=0,Ncomments-1 DO BEGIN
printf,unit,c(i)
ENDFOR
N_waves=n_elements(st)
printf,unit,n_waves
FOR i=0L,N_waves-1 DO BEGIN
printf,unit,st(i).lambisrf,st(i).isrf
ENDFOR
close,unit
free_lun,unit
the_end:
;stop
END