2018A&A...619A.102D

We present near-infrared (NIR) spectroscopy of the nearby supernova 2014J obtained ∼450 d after explosion. We detect the [NiII] 1.939µm line in the spectra indicating the presence of stable ⁵⁸Ni in the ejecta. The stable nickel is not centrally concentrated but rather distributed as the iron. The spectra are dominated by forbidden [FeII] and [CoII] lines. We used lines, in the NIR spectra, arising from the same upper energy levels to place constraints on the extinction from host galaxy dust. We find that that our data are in agreement with the high A_V and low R_V found in earlier studies from data near maximum light. Using a ⁵⁶Ni mass prior from near maximum light γ-ray observations, we find 0.053±0.018 M_☉ of stable nickel to be present in the ejecta. We find that the iron group features are redshifted from the host galaxy rest frame by ∼600km/s.