dustem_compute_sed.pro
3.29 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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
FUNCTION dustem_compute_sed,p_dim,$
st=st,$
sed_spec=sed_spec, $
help=help
;+
; NAME:
; dustem_compute_sed
;
; PURPOSE:
; Computes a SED for a given Dustem model
;
; CATEGORY:
; Dustem
;
; CALLING SEQUENCE:
; sed=dustem_compute_sed(p_dim[,st][,sed_spec][,/help])
;
; INPUTS:
; p_dim = parameter values
;
; OPTIONAL INPUT PARAMETERS:
; st = Dustem output structure
;
; OUTPUTS:
; sed = computed SED for filters in !dustem_data
;
; OPTIONAL OUTPUT PARAMETERS:
; st = dustem output structure
; sed_spec = dustem emission spectrum
;
; ACCEPTED KEY-WORDS:
; help = If set, print this help
;
; COMMON BLOCKS:
; None
;
; SIDE EFFECTS:
; None
;
; RESTRICTIONS:
; The DustEMWrap IDL code must be installed
;
; PROCEDURE:
; None
;
; EXAMPLES
;
; MODIFICATION HISTORY:
; Written by J.-Ph. Bernard 2008
; Evolution details on the DustEMWrap gitlab.
; See http://dustemwrap.irap.omp.eu/ for FAQ and help.
;-
IF keyword_set(help) THEN BEGIN
doc_library,'dustem_compute_sed'
dustem_sed=0.
goto,the_end
ENDIF
IF not keyword_set(st) THEN BEGIN
dustem_activate_plugins,p_dim/(*(*!dustem_fit).param_init_values),st=st
ENDIF
; Convert into MJy/sr/1d20
fact = 1.e4*(*!dustem_HCD)/(4.*!pi)/(3.e8/1.e-6/st.sed.wav)*1.e20/1.e7 ;this is correct despite the way it is presented (1.e4/1e.7*1e.20=1.e17 which is the factor to convert from ergs to Mega Janskys)
SED_spec = st.sed.em_tot * fact
;ADDING PLUGIN TO SPECTRUM----------------
scopes=tag_names((*!dustem_plugin))
IF scopes[0] NE 'NONE' THEN BEGIN
;IF ptr_valid(!dustem_plugin) THEN BEGIN
for i=0L,n_tags(*!dustem_plugin)-1 do begin
if total(strsplit((*(*!dustem_plugin).(i).scope),'+',/extract) eq 'ADD_SED') then SED_spec+=(*(*!dustem_plugin).(i).spec)[*,0]
endfor
ENDIF
;------------------------------------------
if not isarray(SED_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 0.,count_sed)
IF count_sed NE 0 THEN BEGIN
filter_names=((*(*!dustem_data).sed).filt_names)[ind_sed]
ssed=dustem_cc(st.sed.wav,SED_spec,filter_names,cc=cc)
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(SED_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.
;stop
RETURN,dustem_sed
END