Figure 4 from SN 2017ens: The Metamorphosis of a Luminous Broadlined Type Ic Supernova into an SN IIn

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SN 2017ens: The Metamorphosis of a Luminous Broadlined Type Ic Supernova into an SN IIn

Authors: T.-W. Chen, C. Inserra, M. Fraser, T. J. Moriya, P. Schady, T. Schweyer, A. V. Filippenko, D. A. Perley, A. J. Ruiter, I. Seitenzahl, J. Sollerman, F. Taddia, J. P. Anderson, R. J. Foley, A. Jerkstrand, C.-C. Ngeow, Y.-C. Pan, A. Pastorello, S. Points, S. J. Smartt, K. W. Smith, S. Taubenberger, P. Wiseman, D. R. Young, S. Benetti, M. Berton, F. Bufano, P. Clark, M. Della Valle, L. Galbany, A. Gal-Yam, M. Gromadzki, C. P. Gutiérrez, A. Heinze, E. Kankare, C. D. Kilpatrick, H. Kuncarayakti, G. Leloudas, Z.-Y. Lin, K. Maguire, P. Mazzali, O. McBrien, S. J. Prentice, A. Rau, A. Rest, M. R. Siebert, B. Stalder, J. L. Tonry, and P.-C. Yu

2018 The Astrophysical Journal Letters 867 L31.

Provider: AAS Journals

Caption: Figure 4.

VLT/X-Shooter spectra of SN 2017ens at +190 day. Top panel: UVB and optical (VIS) parts. Middle panel: NIR part. The main panels use a log scale in order to present details in the continuum (rebinned to 2 Å pixel⁻¹ (UVB+VIS) and 5 Å pixel⁻¹ (NIR)); inset panels use a linear scale without binning. Bottom panel, left: color-combined image from GROND r′i′z′ bands. SN 2017ens is associated with host-galaxy B1+B2, and there is a possible tidal tail connecting to the nearby object A (redshift unknown). Source C is a background galaxy at z = 0.30. The X-Shooter slit position is indicated with two dashed lines. Bottom panel, right: the Hβ position in the two-dimensional raw image.

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