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subroutine abpop
c******************************************************************************
c Equivalent width matching routine for stellar populations; usually
c meant for integrated light spectra.
c******************************************************************************
implicit real*8 (a-h,o-z)
include 'Atmos.com'
include 'Linex.com'
include 'Mol.com'
include 'Pstuff.com'
include 'Multimod.com'
character*80 line
c*****read the parameter file
call params
c*****open the model table input file and the summary table output file;
c read the information from the table input file
call tablepop (1)
c*****open the standard output file
nf1out = 20
lscreen = 8
array = 'STANDARD OUTPUT'
nchars = 15
call infile ('output ',nf1out,'formatted ',0,nchars,
. f1out,lscreen)
c*****FIRST PASS: For each model, for each line, create a curve-of-growth
c finely divided in steps of 0.01 in "Ngf"
do mmod=1,modtot
c*****read in the model atmospheres and their summary output files
line = synpre
num = 80
call getcount (num,line)
if (mmod < 10) then
write(line(num+1:num+1),1013) mmod
else
write(line(num+1:num+2),1014) mmod
endif
nf2out = 21
fmodoutput(mmod) = line
f2out = fmodoutput(mmod)
lscreen = 10
array = 'SUMMARY C-O-G OUTPUT'
nchars = 20
call infile ('output ',nf2out,'formatted ',0,nchars,
. f2out,lscreen)
line = modpre
num = 80
call getcount (num,line)
if (mmod < 10) then
write(line(num+1:num+1),1013) mmod
else
write(line(num+1:num+2),1014) mmod
endif
nfmodel = 30
fmodinput(mmod) = line
fmodel = fmodinput(mmod)
array = 'THE MODEL ATMOSPHERE'
nchars = 20
lscreen = 12
call infile ('input ',nfmodel,'formatted ',0,nchars,
. fmodel,lscreen)
call inmodel
write (nf2out,1001) moditle
c*****open and read the line list; this will internally be broken down
c into 1-line lists for computational efficiency
array = 'THE LINE LIST'
nchars = 13
nflines = 31
lscreen = 14
call infile ('input ',nflines,'formatted ',0,nchars,
. flines,lscreen)
call inlines (1)
if (nlines > 1000) then
write (*,1005)
stop
endif
call eqlib
call nearly (1)
c*****do the curves of growth; store the results
rwlow = -6.5
rwhigh = -3.5
rwstep = 0.15
do lim1=1,nlines
lim2 = lim1
waveold = 0.
call curve
if (ncurve > 50) then
nmodcurve(mmod,lim1) = 50
else
nmodcurve(mmod,lim1) = ncurve
endif
fluxmod(mmod,lim1) = flux
lastcurve = nmodcurve(mmod,lim1)
iatom = nint(atom1(lim1))
xxab = dlog10(xabund(iatom))
weightmod(mmod,lim1) = fluxmod(mmod,lim1)*radius(mmod)**2*
. relcount(mmod)
do icurve=1,lastcurve
gfmodtab(mmod,lim1,icurve) = gf1(icurve) + xxab
rwmodtab(mmod,lim1,icurve) = w(icurve)
enddo
enddo
enddo
c*****set some parameters
ewsynthopt = -1
mode = 2
cogatom = 0.
lim1line = 0
c*****now, inside the
c*****define the range of lines for a species
5 call linlimit
if (lim1line < 0) then
call finish (0)
return
endif
lim1obs = lim1line
lim2obs = lim2line
c*****find out whether molecular equilibrium is involved in the species
call molquery
c*****for just the first model atmosphere, interpolate in the curve-of-growth
c at very small log(Ngf) steps for just the first line in the list,
c in order to make a lookup table for later abundance iterations
ncurve = nmodcurve(1,1)
do i=2,ncurve-2
k = 30*(i-2)
l = -1
do m=k+1,k+30
l = l + 1
pp = 0.005/0.15*(l-1)
gftab(m) = gfmodtab(1,1,2) + 0.005*(m-1)
rwtab(m) = rwmodtab(1,1,i-1)*(-pp)*(pp-1.)*(pp-2.)/6. +
. rwmodtab(1,1,i)*(pp*pp-1.)*(pp-2.)/2. +
. rwmodtab(1,1,i+1)*(-pp)*(pp+1.)*(pp-2.)/2. +
. rwmodtab(1,1,i+2)*pp*(pp*pp-1.)/6.
enddo
enddo
ntabtot = m - 1
c*****now consider each line at a time; use these curve-of-growth to
c compute a weighted <EW_calc>
do lim1=lim1line,lim2line
write (nf7out,1003) atom1(lim1), wave1(lim1), e(lim1,1),
. dlog10(gf(lim1))
rwlgerror = 50.
deltangf = 0.
do k=1,30
call ewweighted
rwlgcal = dlog10(ewmod(lim1)/wave1(lim1))
do i=2,ntabtot
if (rwtab(i) > rwlgcal) then
gflgcal = gftab(i-1) + (gftab(i)-gftab(i-1))*
. (rwlgcal-rwtab(i-1))/(rwtab(i)-rwtab(i-1))
exit
endif
enddo
rwlgobs = dlog10(width(lim1)/wave1(lim1))
do i=2,ntabtot
if (rwtab(i) > rwlgobs) then
gflgobs = gftab(i-1) + (gftab(i)-gftab(i-1))*
. (rwlgobs-rwtab(i-1))/(rwtab(i)-rwtab(i-1))
exit
endif
enddo
rwlgerror = rwlgobs - rwlgcal
diffngf = gflgobs - gflgcal
deltangf = deltangf + diffngf
if (dabs(rwlgerror) < 0.01) exit
if (k == 30) then
write (*,1004)
stop
endif
enddo
c*****here we go for a final iteration on a line, or finish
call ewweighted
enddo
c*****do the species statistics and output the results
call stats
call lineinfo (3)
c*****here a plot may be made on the terminal (and paper) if there
c are enough lines; then the user will be prompted on some
c options concerning what is seen on the plot
if (plotopt /= 0) then
call blankstring (moditle)
moditle(1:70) = popitle(1:70)
moditle(57:80) = 'EW-POPULATION '
call pltabun
endif
*****quit, or go on to another species?
array = 'DO ANOTHER SPECIES ([y]/n)? '
if (silent == 'n') then
nchars = 28
call getasci (nchars,maxline)
choice = chinfo(1:1)
else
choice = 'y'
endif
if (choice=='y' .or. nchars<=0) then
if (mode == 2) then
go to 5
else
call finish (0)
return
endif
else
call finish (0)
return
endif
c*****format statements
1001 format (a80)
1003 format (/'species=',f5.1, 3x, 'lambda=', f8.3, 3x, 'EP=', f6.3,
. 3x, 'log(gf)=', f7.3)
1004 format ('NO ABUNDANCE CONVERGENCE IN 30 TRIES; I QUIT!')
1005 format ('MORE THAN 1000 LINES FED TO ABPOP; I QUIT')
1013 format (i1)
1014 format (i2)
end
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