Testing the magnetar scenario for superluminous supernovae with circular polarimetry

Aleksandar Cikota, Giorgos Leloudas, Mattia Bulla, Cosimo Inserra, Ting-Wan Chen, Jason Spyromilio, Ferdinando Patat, Zach Cano, Stefan Cikota, Michael W. Coughlin, Erkki Kankare, Thomas B. Lowe, Justyn R. Maund, Armin Rest, Stephen J. Smartt, Ken W. Smith, Richard J. Wainscoat, David R. Young