# Dust delensing firstlook

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(Alex writing)

Here I describe a first look at the impact of non-Gaussian dust on delensing. One possible concern is that a coupling between long- and short-scale modes can lead to a bias on delensing. To try to capture this we do the following (other suggestions are welcome):

For a simulated dust map $Q I compute a lensing reconstruction map using a quadratic estimator, $\phi_\mathrm{dust} \sim E_{dust}B_{dust}$ -->