From fbda62d331d8f0def7839c18d5509e40bc598772 Mon Sep 17 00:00:00 2001 From: Fabian Jankowski Date: Tue, 2 Jul 2024 17:02:35 +0200 Subject: [PATCH] Add what to do in case you have voltage data. --- docs/FAQ.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/docs/FAQ.md b/docs/FAQ.md index 915b7de..a9b0846 100644 --- a/docs/FAQ.md +++ b/docs/FAQ.md @@ -43,4 +43,6 @@ To measure the scattering-corrected DM reliably, one must run `scatfit` iterativ In other words, start by giving the initial DM (e.g. S/N-optimizing DM) in the first `scatfit` call. Copy the output scattering-corrected DM and run `scatfit` again with the output DM as input. Repeat this process until the difference between input DM and output scattering-corrected DM is less than the reported DM uncertainty or a pre-determined value. +If you have access to the voltage data of the burst, you should also iterate on the coherent DM at the same time as the post-detection DM. You ideally want to coherently dedisperse, optimise the DM, coherently dedisperse the data again with the new output DM, and repeat the process several times until convergence. + The leading edge of the burst profile should be as sharp as possible (in the absence of DM-smearing), and the tail well-described by the scattering model. Three to four iterations should be enough to reach a stable scattering-corrected DM if the initial DM was already close to the corrected value. Something must be wrong if the DM does not stabilise after 5-6 iterations.