Optical follow-up of core-collapse supernovae 2010hq and 2010jl
Rupak Roy1, Firoza Sutaria2, Brijesh Kumar13, Alak Ray3 and Jose Prieto4
1Aryabhatta Research Institute of Observational Sciences, Nainital
2Indian Institute of Astrophysics, Koramangala, Bangalore
3Tata Institute of Fundamental Research, Mumbai
4Ohio State University, Ohio, USA
E-mail: roy@aries.res.in, rupakroy1980@gmail.com

Abstract. We present the preliminary results from the optical photometric and low-resolution spectroscopic observations of the core-collapse type II supernovae 2010hq and 2010jl. With unfiltered discovery magnitudes of 14.7 and 12.9, these are the brightest type II events seen this year. Our first spectrum of SN 2010hq, taken nearly 30 days after discovery shows strong P-Cygni profiles of Hα, Hβ and Na ID. It also shows various metallic absorption lines, mainly due to Fe II multiplets, Ca II, O I, and forbidden [Ca II] lines. This spectrum is typical of a type IIP event in its plateau phase. SN 2010jl is an energetic, rare type IIn burst, which has also been detected in the X-ray and UV bands. Proximity of this event, along with early discovery, allows us to conduct a detailed photometric and spectroscopic study of this object from the beginning. We also present the observationally derived parameters of these SNe and compare their properties with other core-collapse events of similar kind.