High-cadence observations and variable spin behaviour of magnetar Swift J1818.0-1607 after its outburst

D.J. Champion, I {Cognard}, Marilyn Cruces, G Desvignes, Fabian Jankowski, R. Karappusamy, Michael Keith, C Kouveliotou, Michael Kramer, Kuo Liu, Andrew Lyne, Mitchell Mickaliger, Brendan O'Connor, Aditya Parthasarathy, Nataliya Porayko, Kaustubh Rajwade, Benjamin Stappers, P Torne, Alexander van der Horst, Patrick Weltevrede