Accretion in strong field gravity with eXTP

Alessandra De Rosa, Phil Uttley, LiJun Gou, Yuan Liu, Cosimo Bambi, Didier Barret, Tomaso Belloni, Emanuele Berti, Stefano Bianchi, Ilaria Caiazzo, Piergiorgio Casella, Marco Feroci, Valeria Ferrari, Leonardo Gualtieri, Jeremy Heyl, Adam Ingram, Vladimir Karas, FangJun Lu, Bin Luo, Giorgio Matt, Sara Motta, Joseph Neilsen, Paolo Pani, Andrea Santangelo, XinWen Shu, JunFeng Wang, Jian-Min Wang, YongQuan Xue, YuPeng Xu, WeiMin Yuan, YeFei Yuan, Shuang-Nan Zhang, Shu Zhang, Ivan Agudo, Lorenzo Amati, Nils Andersson, Cristina Baglio, Pavel Bakala, Altan Baykal, Sudip Bhattacharyya, Ignazio Bombaci, Niccoló Bucciantini, Fiamma Capitanio, Riccardo Ciolfi, Wei K. Cui, Filippo D’Ammando, Thomas Dauser, Melania Del Santo, Barbara De Marco, Tiziana Di Salvo, Chris Done, Michal Dovčiak, Andrew C. Fabian, Maurizio Falanga, Angelo Francesco Gambino, Bruce Gendre, Victoria Grinberg, Alexander Heger, Jeroen Homan, Rosario Iaria, JiaChen Jiang, ChiChuan Jin, Elmar Koerding, Manu Linares, Zhu Liu, Thomas J. Maccarone, Julien Malzac, Antonios Manousakis, Frédéric Marin, Andrea Marinucci, Missagh Mehdipour, Mariano Méndez, Simone Migliari, Cole Miller, Giovanni Miniutti, Emanuele Nardini, Paul T. O’Brien, Julian P. Osborne, Pierre Olivier Petrucci, Andrea Possenti, Alessandro Riggio, Jerome Rodriguez, Andrea Sanna, LiJing Shao, Malgosia Sobolewska, Eva Sramkova, Abigail L. Stevens, Holger Stiele, Giulia Stratta, Zdenek Stuchlik, Jiri Svoboda, Fabrizio Tamburini, Thomas M. Tauris, Francesco Tombesi, Gabriel Torok, Martin Urbanec, Frederic Vincent, QingWen Wu, Feng Yuan, Jean J. M. in’ t Zand, Andrzej A. Zdziarski & XinLin Zhou. 2019. Accretion in strong field gravity with eXTP. Science China Physics Mechanics and Astronomy 62, 2, DOI: 10.1007/s11433-018-9297-0

In this paper we describe the potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission for studies related to accretion flows in the strong field gravity regime around both stellar-mass and supermassive black-holes. eXTP has the unique capability of using advanced “spectral-timing-polarimetry” techniques to analyze the rapid variations with three orthogonal diagnostics of the flow and its geometry, yielding unprecedented insight into the inner accreting regions, the effects of strong field gravity on the material within them and the powerful out flows which are driven by the accretion process.

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