Dense matter with eXTP

Anna L. Watts, WenFei Yu, Juri Poutanen, Shu Zhang, Sudip Bhattacharyya, Slavko Bogdanov, Long Ji, Alessandro Patruno, Thomas E. Riley, Pavel Bakala, Altan Baykal, Federico Bernardini, Ignazio Bombaci, Edward Brown, Yuri Cavecchi, Deepto Chakrabarty, Jérôme Chenevez, Nathalie Degenaar, Melania Del Santo, Tiziana Di SalvoVictor Doroshenko, Maurizio Falanga, Robert D. Ferdman, Marco Feroci, Angelo F. Gambino, MingYu Ge, Svenja K. Greif, Sebastien Guillot, Can Gungor, Dieter H. Hartmann, Kai Hebeler, Alexander Heger, Jeroen Homan, Rosario Iaria, Jean in't. Zand, Oleg Kargaltsev, Aleksi Kurkela, XiaoYu Lai, Ang Li, XiangDong Li, ZhaoSheng Li, Manuel Linares, FangJun Lu, Simin Mahmoodifar, Mariano Méndez, M. Coleman Miller, Sharon Morsink, Joonas Nättilä, Andrea Possenti, Chanda Prescod-Weinstein, JinLu Qu, Alessandro Riggio, Tuomo Salmi, Andrea Sanna, Andrea Santangelo, Hendrik Schatz, Achim Schwenk, LiMing Song, Eva Šrámková, Benjamin Stappers, Holger Stiele, Tod Strohmayer, Ingo Tews, Laura Tolos, Gabriel Török, David Tsang, Martin Urbanec, Andrea Vacchi, RenXin Xu, YuPeng Xu, Silvia Zane, GuoBao Zhang, ShuangNan Zhang, WenDa Zhang, ShiJie Zheng, Xia Zhou

Research output: Contribution to journalArticlepeer-review

74 Citations (Scopus)


In this White Paper we present the potential of the Enhanced X-ray Timing and Polarimetry (eXTP) mission for determining the nature of dense matter; neutron star cores host an extreme density regime which cannot be replicated in a terrestrial laboratory. The tightest statistical constraints on the dense matter equation of state will come from pulse profile modelling of accretion-powered pulsars, burst oscillation sources, and rotation-powered pulsars. Additional constraints will derive from spin measurements, burst spectra, and properties of the accretion flows in the vicinity of the neutron star. Under development by an international Consortium led by the Institute of High Energy Physics of the Chinese Academy of Sciences, the eXTP mission is expected to be launched in the mid 2020s.
Original languageEnglish
Article number29503
JournalScience China Physics, Mechanics, and Astronomy
Issue number2
Early online date20 Aug 2018
Publication statusPublished - Feb 2019


  • neutron
  • X-rays
  • dense matter
  • equation of state
  • Astrophysics - High Energy Astrophysical Phenomena

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