Fig. 4
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Histogram of the transit durations (Eq. (5)) based on 300 000 randomly chosen orbital orientations of an exocometary sample. The black dots illustrate the bin counts compiled from L+22. (a) Orbital distance fixed to 2.5 AU around β Pic. (b) Orbital distance drawn from a flat distribution with 0.026 AU ≤ a ≤ 2.5 AU around β Pic. The histograms are normalized to 15, corresponding to Fig. 2.
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