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arXiv · 1505.01186

Optical observations of the luminous Type IIn Supernova 2010jl for over 900 days

J. E. Jencson·J. L. Prieto·C. S. Kochanek·B. J. Shappee·K. Z. Stanek·R. W. Pogge
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Abstract

The luminous Type IIn Supernova (SN) 2010jl shows strong evidence for the interaction of the SN ejecta with dense circumstellar material (CSM). We present observations of SN 2010jl for $t \sim 900$ d after its earliest detection, including a sequence of optical spectra ranging from $t = 55$ to $909$ d. We also supplement our late time spectra and the photometric measurements in the literature with an additional epoch of new, late time $BVRI$ photometry. Combining available photometric and spectroscopic data, we derive a semi-bolometric optical light curve and calculate a total radiated energy in the optical for SN 2010jl of $\sim 3.5\times10^{50}$ erg. We also examine the evolution of the H$\alpha$ emission line profile in detail and find evidence for asymmetry in the profile for $t \gtrsim 775$ d that is not easily explained by any of the proposed scenarios for this fascinating event. Finally, we discuss the interpretations from the literature of the optical and near-infrared light curves, and propose that the most likely explanation of their evolution is the formation of new dust in the dense, pre-existing CSM wind after $\sim 300$ d.

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J. E. Jencson, J. L. Prieto, C. S. Kochanek, B. J. Shappee, K. Z. Stanek, R. W. Pogge. 2015-05-05. Optical observations of the luminous Type IIn Supernova 2010jl for over 900 days. https://doi.org/10.1093/mnras/stv2795

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