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SN 2013ai: A Link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae
Abstract We present a study of the optical and near-infrared (NIR) spectra of SN 2013ai along with its light curves. These data range from discovery until 380 days after explosion. SN 2013ai is a fast declining Type II supernova (SN II) with an unusually long rise time, 18.9 ± 2.7 …