Magnetar twists: Fermi/gamma-ray burst monitor detection of SGRJ1550-5418

Yuki Kaneko, Ersin Göü, Chryssa Kouveliotou, Jonathan Granot, Enrico Ramirez-Ruiz, Alexander J. Van Der Horst, Anna L. Watts, Mark H. Finger, Neil Gehrels, Asaf Pe'Er, Michiels Van Der Klis, Andreas Von Kienlin, Stefanie Wachter, Colleen A. Wilson-Hodge, Peter M. Woods