Figure 5 from Early Observations and Analysis of the Type Ia SN 2014J in M82

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Early Observations and Analysis of the Type Ia SN 2014J in M82

Authors: G. H. Marion, D. J. Sand, E. Y. Hsiao, D. P. K. Banerjee, S. Valenti, M. D. Stritzinger, J. Vinkó, V. Joshi, V. Venkataraman, N. M. Ashok, R. Amanullah, R. P. Binzel, J. J. Bochanski, G. L. Bryngelson, C. R. Burns, D. Drozdov, S. K. Fieber-Beyer, M. L. Graham, D. A. Howell, J. Johansson, R. P. Kirshner, P. A. Milne, J. Parrent, J. M. Silverman, R. J. Vervack, Jr., and J. C. Wheeler

Marion et al. 2015 The Astrophysical Journal 798 39.

Provider: AAS Journals

Caption: Figure 5.

SYNAPPS models show that C I λ1.0693 is required to match the line profile of the Mg II λ1.0927 feature. The solid black line is the −0.4d spectrum of SN 2014J. These are the same data found in Figure 4, but plotted here without smoothing. The spectrum displayed as a red dotted line is a good fit to the data. It was produced by a model that includes multiple ions plus C I. The spectrum plotted as a blue dot–dashed line is a poor fit to the absorption feature. It was produced by removing C I from the model. The short dotted line marks the location of the absorption minimum for C I in the model.

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