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grid_integrate: deposit the specific energy spectrum at interaction p… #5

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Merged
dnarayanan merged 1 commit into from
Jul 8, 2026
Merged

grid_integrate: deposit the specific energy spectrum at interaction p… #5

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17 changes: 17 additions & 0 deletions src/grid/grid_propagate_3d.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -195,6 +195,23 @@ subroutine grid_integrate(p,tau_required,tau_achieved)
end if
end do

! Deposit the same energy in the frequency-resolved spectrum.
! Without this, the energy deposited over the partial path to
! each interaction point is counted in the scalar specific
! energy but missing from the binned spectrum, which biases
! the spectrum low in any cell optically thick enough for
! photons to interact within a single crossing.
if (compute_specific_energy_spectrum) then
idx = minloc(abs(log_nu_bins - log10(p%nu)), DIM=1)
do id=1,n_dust
if(density(p%icell%ic, id) > 0._dp) then
specific_energy_sum_spectrum(p%icell%ic, id, idx) = &
& specific_energy_sum_spectrum(p%icell%ic, id, idx) &
& + tact * p%current_kappa(id) * p%energy
end if
end do
end if

if(debug) write(*,'(" [debug] end grid_integrate")')
return

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