Prospects for Time-Domain and Multi-Messenger Science with eXTP

Kavli Affiliate: Zhuo Li

| First 5 Authors: Shu-Xu Yi, Wen Zhao, Ren-Xin Xu, Xue-Feng Wu, Giulia Stratta

| Summary:

In this new era of time-domain and multi-messenger astronomy, various new
transients and new phenomena are constantly being discovered thanks to the
rapid advances in observations, which provide the excellent opportunity to
study the physics in the extreme environments. The enhanced X-ray Timing and
Polarimetry mission (eXTP), planned to be launched in 2030, has several key
advantages, including advanced polarimetry, high sensitivity & large effective
area, and wide energy range coverage, which make it a groundbreaking project in
high-energy astrophysics. In this article, we briefly introduce the potential
time-domain and multi-messenger targets for eXTP, including gravitational-wave
(GW) counterparts, gamma-ray bursts (GRBs), magnetars and fast radio bursts
(FRBs), tidal disruption events (TDEs), supernovae, high energy neutrinos and
TeV active galactic nucleus (AGNs), and so on. We discuss the advantages of
future eXTP observations for detecting these sources, their detection
capabilities, the abilities to distinguish theoretical models, and their
applications in gravity and cosmology.

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