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Open Access Publications from the University of California

A six-year image-subtraction light curve of SN 2010jl

  • Author(s): Ofek, EO
  • Zackay, B
  • Gal-Yam, A
  • Sollerman, J
  • Fransson, C
  • Fremling, C
  • Kulkarni, SR
  • Nugent, PE
  • Yaron, O
  • Kasliwal, MM
  • Masci, F
  • Laher, R
  • et al.

© 2019. The Astronomical Society of the Pacific. All rights reserved. Printed in the U.S.A. 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.

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