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We present optical imaging and spectroscopy of supernova (SN) LSQ13fn, a type II supernova with several hitherto-unseen properties. Although it initially showed strong symmetric spectral emission features attributable to He ii, N iii, and C iii, reminiscent of some interacting SNe, it transitione...


Polshaw, J.Kotak, R.Dessart, L.Fraser, M.Gal-Yam, A.Inserra, C.Sim, S. A.Smartt, S. J.Sollerman, J.Baltay, C.Rabinowitz, D.Benetti, S.Botticella, M. T.Campbell, H.Chen, T.-W.Galbany, L.McKinnon, R.Nicholl, M.Smith, K. W.Sullivan, M.Takáts, K.Valenti, S.Young, D. R.[LSQ13fn: A type II-Plateau supernova with a possibly low metallicity progenitor that breaks the standardised candle relation]LSQ13fn: A type II-Plateau supernova with a possibly low metallicity progenitor that breaks the standardised candle relation

We present the complete set of ultra-violet, optical and near-infrared photometry and spectroscopy for SN 2012ca, covering the period from 6 d prior to maximum light, until 531 d after maximum. The spectroscopic time series for SN 2012ca is essentially unchanged over 1.5 yr, and appear to be domi...


Inserra, C.Fraser, M.Smartt, S. J.Benetti, S.Chen, T.-W.Childress, M.Gal-Yam, A.Howell, D. A.Kangas, T.Pignata, G.Polshaw, J.Sullivan, M.Smith, K. W.Valenti, S.Young, D. R.Parker, S.Seccull, T.McCrum, M.[On Type IIn/Ia-CSM supernovae as exemplified by SN 2012ca]On Type IIn/Ia-CSM supernovae as exemplified by SN 2012ca

Gutiérrez, C.P.Anderson, J.P.Sullivan, M.Dessart, L.González-Gaitan, S.Galbany, L.Dimitriadis, G.Arcavi, I.Bufano, F.Chen, T.-W.Dennefeld, M.Gromadzki, M.Haislip, J.B.Hosseinzadeh, G.Howell, D.A.Inserra, C.Kankare, E.Leloudas, G.Maguire, K.McCully, C.Morrell, N.Olivares, E.F.Pignata, G.Reichart, D.E.Reynolds, T.Smartt, S.J.Sollerman, J.Taddia, F.Takáts, K.Terreran, G.Valenti, S.Young, D.R.[Type II supernovae in low-luminosity host galaxies]Type II supernovae in low-luminosity host galaxies

Tartaglia, L.Sand, D.J.Valenti, S.Wyatt, S.Anderson, J.P.Arcavi, I.Ashall, C.Botticella, M.T.Cartier, R.Chen, T.-W.Cikota, A.Coulter, D.Valle, M.D.Foley, R.J.Gal-Yam, A.Galbany, L.Gall, C.Haislip, J.B.Harmanen, J.Hosseinzadeh, G.Howell, D.A.Hsiao, E.Y.Inserra, C.Jha, S.W.Kankare, E.Kilpatrick, C.D.Kouprianov, V.V.Kuncarayakti, H.Maccarone, T.J.Maguire, K.Mattila, S.Mazzali, P.A.McCully, C.Melandri, A.Morrell, N.Phillips, M.M.Pignata, G.Piro, A.L.Prentice, S.Reichart, D.E.Rojas-Bravo, C.Smartt, S.J.Smith, K.W.Sollerman, J.Stritzinger, M.D.Sullivan, M.Taddia, F.Young, D.R.[The Early Detection and Follow-up of the Highly Obscured Type II Supernova 2016ija/DLT16am]The Early Detection and Follow-up of the Highly Obscured Type II Supernova 2016ija/DLT16am

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