Observatory science with eXTP

Abstract

In this White Paper we present the potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission for studies related to Observatory Science targets. These include flaring stars, supernova remnants, accreting white dwarfs, low and high mass X-ray binaries, radio quiet and radio loud active galactic nuclei, tidal disruption events, and gamma-ray bursts. eXTP will be excellently suited to study one common aspect of these objects: their often transient nature. Developed 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.

Accepted for publication on Sci. China Phys. Mech. Astron. (2019)

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• Comprehensive models of novae at metallicity $Z=0.02$ and $Z=10^{-4}$
• The first hard X-ray spectral catalogue of Blazars observed by NuSTAR
• eXTP perspectives for the $\nu$MSM sterile neutrino dark matter model
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• NICER Discovers Spectral Lines During Photospheric Radius Expansion Bursts from 4U 1820-30: Evidence for Burst-driven Winds
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• Polarimetry of relativistic tidal disruption event Swift J2058+0516
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• Radial oscillations and gravitational wave echoes of strange stars with nonvanishing lambda
• Spectral analysis of the AMXP IGR J17591-2342 during its 2018 outburst
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• X- and Gamma-ray astrophysics in the era of Multi-messenger astronomy
• The gravitational Higgs mechanism and resulting smoking gun effects
• Tidal Deformability as a Probe of Dark Matter in Neutron Stars
• The Wide Field Monitor (WFM) of the China-Europe eXTP (enhanced X-ray Timing and Polarimetry) mission
• Clumpy wind studies and the non-detection of cyclotron line in OAO 1657-415
• Active Galactic Nuclei and their demography through cosmic time
• Analysis Methods for Gamma-ray Astronomy
• A search for the $835\text{Hz}$ superburst oscillation signal in the regular thermonuclear bursts of 4U 1636-536
• Simulation of a Xe-based X-ray Polarimeter at 10-30 keV
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