dustem_compute_sed.pro
3.34 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
FUNCTION dustem_compute_sed,p_dim,st,cont=cont,freefree=freefree,synchrotron=synchrotron,_extra=extra,out_st=out_st,wave0=wave0
;+
; NAME:
; dustem_compute_sed
; PURPOSE:
; Computes an SED from a given Dustem spectrum
; CATEGORY:
; Dustem
; CALLING SEQUENCE:
; sed=dustem_compute_sed(p_dim[,st=][,cont=][,_extra=][,/help])
; INPUTS:
; p_dim = parameter values (used only if st is not provided)
; OPTIONAL INPUT PARAMETERS:
; st = Dustem output structure, if provided, overrides p_dim
; OUTPUTS:
; sed = computed SED for filters in !dustem_data
; OPTIONAL OUTPUT PARAMETERS:
; cont = NIR continuum
; out_st = same as sed
; ACCEPTED KEY-WORDS:
; help = If set, print this help
; COMMON BLOCKS:
; None
; SIDE EFFECTS:
; None
; RESTRICTIONS:
; The dustem idl wrapper must be installed
; PROCEDURE:
; None
; EXAMPLES
;
; MODIFICATION HISTORY:
; Written by J.-Ph. Bernard
; see evolution details on the dustem cvs maintained at CESR
; Contact J.-Ph. Bernard (Jean-Philippe.Bernard@cesr.fr) in case of problems.
;-
IF keyword_set(help) THEN BEGIN
doc_library,'dustem_compute_sed'
dustem_sed=0.
goto,the_end
ENDIF
;stop
IF not keyword_set(st) THEN BEGIN
;st=dustem_run(p_dim)
IF !dustem_idl_continuum THEN cont=dustem_create_continuum()
IF !dustem_idl_freefree THEN freefree=dustem_create_freefree()
IF !dustem_idl_synchrotron THEN synchrotron=dustem_create_synchrotron()
dustem_create_functions,p_dim/(*(*!dustem_fit).param_init_values),cont=cont,freefree=freefree,synchrotron=synchrotron,res=res
st=dustem_run(p_dim)
;stop
ENDIF
;If keyword_set(result) THEN result=st
if not keyword_set(wave0) then wave0 = 0.
; Convert into MJy/sr/1d20
fact = 1.e4*1.E20/(4.*!pi)/(3.e8/1.e-6/st.sed.wav)*1.e20/1.e7
spec = st.sed.em_tot * fact
IF !dustem_idl_continuum THEN spec=spec+cont
IF !dustem_idl_freefree THEN spec=spec+freefree
IF !dustem_idl_synchrotron THEN spec=spec+synchrotron
if not isarray(spec) THEN stop
;COMPUTE THE MODEL SED
dustem_sed = (*!dustem_data.sed).values * 0.
IF !dustem_do_cc NE 0 AND !dustem_never_do_cc EQ 0 THEN BEGIN
message,'DOING color correction calculations',/info
ENDIF ELSE BEGIN
message,'SKIPPING color correction calculations: we take previous values of cc',/info
ENDELSE
ind_sed=where((*!dustem_data.sed).filt_names NE 'SPECTRUM' and (*!dustem_data.sed).wav gt wave0,count_sed)
IF count_sed NE 0 THEN BEGIN
filter_names=((*!dustem_data.sed).filt_names)[ind_sed]
;FOR ii=0L,n_elements(filter_names)-1 DO BEGIN
ssed=dustem_cc(st.sed.wav,spec,filter_names,cc=cc)
;ENDFOR
dustem_sed[ind_sed]=ssed
ENDIF ELSE BEGIN
print,"**** WARNING **** NO FILTER defined in DATA for COLOUR CORRECTION"
ENDELSE
;For spectrum data points, interpolate in log-log
;Linear interpolation leads to wrong values, in particular where few
;wavelengths points exist in the model (long wavelengths).
ind_spec=where((*!dustem_data.sed).filt_names EQ 'SPECTRUM',count_spec)
IF count_spec NE 0 THEN BEGIN
dustem_sed[ind_spec]=interpol(spec,st.sed.wav,(((*!dustem_data.sed).wav)[ind_spec]))
; dustem_sed(ind_spec)=10^interpol(alog10(spec),alog10(st.sed.wav),alog10((((*!dustem_data.sed).wav)(ind_spec))))
ENDIF
out_st=st
;clean pointers
heap_gc
the_end:
;VG : error in cc IRAS1 when no PAH
j=where(dustem_sed ne dustem_sed,count)
if count gt 0 then dustem_sed[j]=0.
RETURN,dustem_sed
END