2506.08367 — arXiv2

Observatory Science with eXTP

astro-ph.IM

/ Published

Jun 10, 2025

/ Updated

Sep 8, 2025

/ Categories

astro-ph.IM astro-ph.GA astro-ph.HE astro-ph.SR

/ Links

/ Authors

Ping Zhou, Jirong Mao, Liang Zhang, Alessandro Patruno, Enrico Bozzo, Yanjun Xu, Andrea Santangelo, Silvia Zane, Shuang-Nan Zhang, Hua Feng

and 90 more authors

Yuri Cavecchi, Barbara De Marco, Junhui Fan, Xian Hou, Pengfei Jiang, Patrizia Romano, Gloria Sala, Lian Tao, Alexandra Veledina, Jacco Vink, Song Wang, Junxian Wang

, Shanshan Weng

, Samuzal Barua

, Yue-Hong Chen

, Shi-Jiang Chen

, Domitilla de Martino

, Lorenzo Ducci

, Ruben Farinelli

, Yongfeng Huang

, Jean in't Zand

, Alessio Marino

, Alex Markowitz

, Matt Middleton

, Alessandro Papitto

, Jingqiang Peng

, Juri Poutanen

, Qingcang Shui

, Scaringi Simone

, Dingrong Xiong

, Qingchang Zhao

, Yonggang Zheng

/ Abstract

Scheduled for launch in 2030, the enhanced X-ray Timing and Polarization (eXTP) telescope is a Chinese space-based mission aimed at studying extreme conditions and phenomena in astrophysics. eXTP will feature three main payloads: Spectroscopy Focusing Arrays (SFAs), Polarimetry Focusing Arrays (PFAs), and a Wide-field Camera (W2C). This white paper outlines observatory science, incorporating key scientific advances and instrumental changes since the publication of the previous white paper [1]. We will discuss perspectives of eXTP on the research domains of flare stars, supernova remnants, pulsar wind nebulae, cataclysmic variables, X-ray binaries, ultraluminous X-ray sources, AGN, and pulsar-based positioning and timekeeping.