Image Details
Caption: Figure 9.
Magnitude difference between the pre-explosion limit and the first detection vs. the difference in days between the first detection and the pre-explosion (last nondetection) limit. All of the events with explosion time estimated by fitting the rise time (rather than using a recent pre-explosion limit) are omitted from this plot. SN 2011dh and SN 2012aw are nearby SNe with very deep nondetection limits, hence the large magnitude difference in a short time.
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