VizieR Online Data Catalog: SNe II and IIb optical light curves comparison (Pessi+, 2019)

Our sample includes 73 SNe II (see Table A1), with 64 taken from the Carnegie Type II Supernova Program (CATS; Galbany et al. 2016AJ....151...33G, Cat. J/AJ/151/33; PI: Hamuy, 2002-2003) and the Carnegie Supernova Project (CSP-I; Hamuy et al. 2006PASP..118....2H; PIs: Phillips and Hamuy, 2004-2009) samples from the work of Anderson et al. (2014ApJ...786...67A). This sample was selected as it originated from a well-defined data set that was observed, reduced and calibrated in a consistent manner. Additionally, nine objects having well-defined light-curve maxima were included from the literature. All the objects with well defined light-curve maxima were then used as templates to obtain the date of maximum light for the rest of the sample.

In the case of SNe IIb, no sufficiently large sample exists from a single follow-up program. Therefore, we collate all SNe IIb from the literature (see Table A2) that fit our selection criteria. First, we require at least nine data points in our primary photometric band (V), in order to have a good approximation of the intrinsic shape of the light curve. Second, existing photometric data points around maximum light for SNe IIb and prior to ~25d after explosion for SNe II to have a dense enough coverage of the early part of the light curve. This means that our SN II light curves do not necessarily cover the epoch of maximum light. Third, when the explosion date is not well constrained by prediscovery non-detections, at least three available spectra in order to be able to estimate the explosion dates through spectral matching.

(6 data files).