CAOSP abstracts, Volume: 48, No.: 4, year: 2018

Abstract: We present 207 photometric epochs and 9 spectra of SN Ia 2014J in M82. UBVRI photometry was carried out with 13 telescopes at 8 locations, covering the period from January 23, 2014 until May 15, 2015. The parameters of the light curves and interstellar extinction are determined. The comparison of different sets of photometric data is carried out. The light and colour curves of SN 2014J are compared to those for SNe Ia with similar photometric characteristics. We present results of high-cadence monitoring of SN 2014J in the BVR bands carried out on 6 nights and find no evidence for the microvariability. The spectral evolution is found to be typical for SNe Ia, with the expansion velocity at the maximum slightly greater than average and with a low velocity gradient.

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Last update: June 19, 2018