Multi-band optical light-curve behavior of core-collapse supernovae

TL;DR

This study analyzes optical light curves of 19 core-collapse supernovae to understand their behavior, derive luminosities, and identify peculiar events, providing valuable data for supernova classification and evolution insights.

Contribution

It provides a homogeneous dataset of optical light curves for 19 supernovae, including the identification of peculiar IIP events with mixed properties.

Findings

Derived integrated luminosities for different supernova types.

Identified two peculiar IIP supernovae with unique properties.

Provided insights into object-to-object variability in supernova light curves.

Abstract

We present survey results obtained from the UBVRI optical photometric follow-up of 19 bright core-collapse SNe during 2002-2012 using 1-m class optical telescopes operated by the Aryabhatta Research Institute of Observational Science (acronym ARIES), Nainital India. This homogeneous set of data have been used to study behavior of optical light/color curve, and to gain insight into object-to-object peculiarity. We derive integrated luminosities for types IIP, Ibc and luminous SNe. Two peculiar type IIP events having photometric properties similar to normal IIP and spectroscopic properties similar to sub-luminous IIP have been identified.