X-ray polarization evidence for a 200-year-old flare of Sgr A*

Frédéric Marin, E. Churazov, Ildar Khabibullin, Riccardo Ferrazzoli, Laura Di Gesu, Thibault Barnouin, Alessandro Di Marco, R. Middei, A. Vikhlinin, E. Costa, P. Soffitta, Fabio Muleri, R. Sunyaev, W. Forman, Ralph Kraft, S. Bianchi, I. Donnarumma, Pierre-Olivier Petrucci, Teruaki Enoto, I. Agudo, L. A. Antonelli, Matteo Bachetti, L. Baldini, W. H. Baumgartner, R. Bellazzini, Stephen D. Bongiorno, R. Bonino, A. Brez, N. Bucciantini, Fiamma Capitanio, Simone Castellano, E. Cavazzuti, Chien‐Ting Chen, S. Ciprini, Alessandra De Rosa, E. Del Monte, Niccolò Di Lalla, Victor Doroshenko, Michal Dovčiak, Steven R. Ehlert, Y. Evangelista, Sergio Fabiani, Javier A. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Adam Ingram, W. Iwakiri, Svetlana G. Jorstad, P. Kaaret, V. Karas, Takao Kitaguchi, Jeffery J. Kolodziejczak, H. Krawczynski, Fabio La Monaca, L. Latronico, Ioannis Liodakis, S. Maldera, Alberto Manfreda, Andrea Marinucci, Alan P. Marscher, Herman L. Marshall, F. Massaro, G. Matt, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Michela Negro, C.‐Y. Ng, Stephen L. O’Dell, N. Omodei, C. Oppedisano, Alessandro Papitto, George G. Pavlov, Abel L. Peirson, M. Perri, M. Pesce-Rollins, M. Pilia, Andrea Possenti, Juri Poutanen, Simonetta Puccetti, Brian D. Ramsey, John Rankin, Ajay Ratheesh, O. J. Roberts, Roger W. Romani, C. Sgró, Patrick Slane, G. Spandre, Doug Swartz, Toru Tamagawa, F. Tavecchio, Roberto Taverna, Yuzuru Tawara, Allyn F. Tennant, Nicholas E. Thomas, Francesco Tombesi, A. Trois, Sergey S. Tsygankov, R. Turolla, Jacco Vink