Abstract:
We present BVRI photometry and medium resolution spectroscopy of the supernova SN2007rw during ˜ 1 week to ˜ 7 months after discovery. This supernova was classified as a type IIb event, however, based on our analysis we suggest that SN 2007rw is a type IIL supernova. With an absolute B magnitude of M/sub B/= -18.5 magnitude at peak, it is a bright IIL event. The early spectrum of SN 2007rw shows H alpha and H Beta with weak P-Cygni absorption. The mass of /sup56/Ni synthesized in the explosion is estimated as ˜ 0.43 M/sub sun/. The metallicity of the host galaxy in the supernova region is found to be marginally subsolar.