Fig. 2.
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Light curves of SN 2020pvb. Top: UV-optical-NIR light curves of SN 2020pvb. Upper limits are indicated by empty symbols with arrows. Bottom: Historical light curves of SN 2020pvb. Upper limits are indicated by empty symbols with arrows. The light curves have been shifted for clarity by the amounts indicated in the legend. The right insert is a 27″ × 27″ zoomed-in view of the transient position in the difference image (observation minus reference image) taken on 2020 July 18 in the PS1 w band. The precursor outburst is detected at a greater than 5-sigma significance.
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