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c******************************************************************************
c The subroutines needed to calculate the He- b-f and f-f opacities are in
c this file. These are from ATLAS9.
c******************************************************************************
subroutine opacHeminus
c******************************************************************************
c This routine computes the He- bound-free and free-free opacities.
c******************************************************************************
implicit real*8 (a-h,o-z)
include 'Atmos.com'
include 'Kappa.com'
save
data freq1 /0./
if (freq /= freq1) then
freq1 = freq
a1 = 3.397d-46 + (-5.216d-31+7.039d-15/freq)/freq
b1 = -4.116d-42 + ( 1.067d-26+8.135d-11/freq)/freq
cc = 5.081d-37 + (-8.724d-23-5.659d-08/freq)/freq
endif
do i=1,ntau
aHeminus(i) = (a1*t(i) + b1 +c1/t(i))*ne(i)*
. numdens(2,1,i)/u(2,1,i)
enddo
return
end
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