# A very luminous magnetar-powered supernova associated with an ultra-long γ-ray burst

@article{Greiner2015AVL,
title={A very luminous magnetar-powered supernova associated with an ultra-long $\gamma$-ray burst},
author={J. Greiner and P. A. Mazzali and David Alexander Kann and Thomas Kr{\"u}hler and E. Pian and Simon Prentice and Felipe Olivares E. and A. M. Rossi and Sylvio Klose and Stefan Taubenberger and Fabian Knust and Paulo M. J. Afonso and Chris Ashall and Jan Bolmer and Corentin Delvaux and Roland Diehl and Jonny Elliott and Robert Filgas and J. P. U. Fynbo and John F. Graham and Ana Nicuesa Guelbenzu and Shiho Kobayashi and Giorgos Leloudas and Sandra Savaglio and Patricia Schady and Sebastian Schmidl and Tassilo Schweyer and Vladimir Sudilovsky and Mohit Tanga and Adria C. Updike and Hendrik J. van Eerten and Karla Varela},
journal={Nature},
year={2015},
volume={523},
pages={189-192}
}
A new class of ultra-long-duration (more than 10,000 seconds) γ-ray bursts has recently been suggested. They may originate in the explosion of stars with much larger radii than those producing normal long-duration γ-ray bursts or in the tidal disruption of a star. No clear supernova has yet been associated with an ultra-long-duration γ-ray burst. Here we report that a supernova (SN 2011kl) was associated with the ultra-long-duration γ-ray burst GRB 111209A, at a redshift z of 0.677. This… Expand
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