A Six-year Image-subtraction Light Curve of SN2010jl

May 2019 • 2019PASP..131e4204O

Authors • Ofek, E. O. • Zackay, B. • Gal-Yam, A. • Sollerman, J. • Fransson, C. • Fremling, C. • Kulkarni, S. R. • Nugent, P. E. • Yaron, O. • Kasliwal, M. M. • Masci, F. • Laher, R.

Abstract • SN 2010jl was a luminous Type IIn supernova (SN), detected in radio, optical, X-ray and hard X-rays. Here we report on its six-year R- and g-band light curves obtained using the Palomar Transient Factory. The light curve was generated using a pipeline based on the proper image-subtraction method and we discuss the algorithm performances. As noted before, the R-band light curve, up to about 300 days after maximum light is well described by a power-law decline with a power-law index of α ≈ -0.5. Between day 300 and day 2300 after maximum light, it is consistent with a power-law decline, with a power-law index of about α ≈ -3.4. The longevity of the light curve suggests that the massive circumstellar material around the progenitor was ejected on timescales of at least tens of years prior to the progenitor explosion.


IPAC Authors

Frank Masci

Senior Scientist