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Caption: Figure 6.
Localization forecasts for the CHIME/FRB Outriggers. Forecasts are provided as a function of FRB band occupancy (see the text above the left, center, and right panels), and S/N as observed by CHIME. We show three different scenarios for the ionosphere: (1) our fiducial ionospheric prior model where we must fringe-fit for the differential sTEC between targets and calibrators randomly drawn from the field of view; (2) a scenario where we find nearby calibrators that allow us to null 80% of the ionospheric contribution; and (3) a scenario where the ionosphere is 5 times thicker than in our fiducial model widening the prior distribution by a factor of 5. We forecast that we will achieve our localization goal of ∼50 mas precision in both dimensions for all band-filling FRBs except under the most pessimistic assumptions, and that even narrowband FRBs can be localized provided the majority of the ionosphere can be nulled.
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