Li, A;
Watts, AL;
Zhang, G;
Guillot, S;
Xu, Y;
Santangelo, A;
Zane, S;
... Thomas, AW; + view all
(2025)
Dense matter in neutron stars with eXTP.
Science China Physics Mechanics and Astronomy
, 68
(11)
, Article 119503. 10.1007/s11433-025-2761-4.
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Abstract
In this white paper, we present the potential of the enhanced X-ray timing and polarimetry (eXTP) mission to constrain the equation of state of dense matter in neutron stars, exploring regimes not directly accessible to terrestrial experiments. By observing a diverse population of neutron stars—including isolated objects, X-ray bursters, and accreting systems—eXTP’s unique combination of timing, spectroscopy, and polarimetry enables high-precision measurements of compactness, spin, surface temperature, polarimetric signals, and timing irregularity. These multifaceted observations, combined with advances in theoretical modeling, pave the way toward a comprehensive description of the properties and phases of dense matter from the crust to the core of neutron stars. Under development by an international Consortium led by the Institute of High Energy Physics of the Chinese Academy of Sciences, the eXTP mission is planned to be launched in early 2030.
| Type: | Article |
|---|---|
| Title: | Dense matter in neutron stars with eXTP |
| DOI: | 10.1007/s11433-025-2761-4 |
| Publisher version: | https://doi.org/10.1007/s11433-025-2761-4 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | dense matter, equation of state, X-rays, neutron stars |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10215890 |
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