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Using data of three well-observed type-II plateau supernovae (SNe II-P), SNe1987A, 1999em and 2003hn; and two atmosphere models by Eastman et al. (1996)and Dessart & Hillier (2005b) we derive calibrations for bolometric correctionsand effective temperature from BVI photometry. The typical scatter of thebolometric correction is 0.11 mag. With these results we obtain bolometriclight curves and effective temperature evolution for a sample of 33 SNe II-P.The SN sample shows a range of 1 dex in plateau luminosity and plateaudurations from 75 to 120 days. Comparing the shape of the transition betweenthe plateau and the radioactive tail, we find that the size of the drop is inthe range of 0.8 to 1.12 dex.

Bolometric Light Curves for 33 Type II-Plateau Supernovae