# Dense matter with eXTP

**Authors:** 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, J\'er\^ome Chenevez, Nathalie, Degenaar, Melania Del Santo, Tiziana Di Salvo, Victor 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 M\'endez, M. Coleman, Miller, Sharon Morsink, Joonas N\"attil\"a, Andrea Possenti, Chanda, Prescod-Weinstein, JinLu Qu, Alessandro Riggio, Tuomo Salmi, Andrea Sanna,, Andrea Santangelo, Hendrik Schatz, Achim Schwenk, LiMing Song, Eva, \v{S}r\'amkov\'a, Benjamin Stappers, Holger Stiele, Tod Strohmayer, Ingo, Tews, Laura Tolos, Gabriel T\"or\"ok, David Tsang, Martin Urbanec, Andrea, Vacchi, RenXin Xu, Ypeng Xu, Silvia Zane, Guobao Zhang, ShuangNan Zhang,, Wenda Zhang, ShiJie Zheng, Xia Zhou

arXiv: 1812.04021 · 2018-12-12

## TL;DR

The eXTP mission aims to use advanced X-ray observations to better understand the properties of dense matter inside neutron stars, which cannot be studied on Earth.

## Contribution

This paper outlines the potential of the upcoming eXTP mission to constrain the dense matter equation of state through various X-ray observational techniques.

## Key findings

- Pulse profile modelling will provide tight constraints on dense matter.
- Spin measurements and burst spectra will offer additional insights.
- Properties of accretion flows will help understand neutron star environments.

## Abstract

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 Science, the eXTP mission is expected to be launched in the mid 2020s.

## Full text

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## Figures

12 figures with captions in the complete paper: https://tomesphere.com/paper/1812.04021/full.md

## References

147 references — full list in the complete paper: https://tomesphere.com/paper/1812.04021/full.md

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Source: https://tomesphere.com/paper/1812.04021