Physics of strong magnetism with eXTP
: Ge, Mingyu; Ji, Long; Taverna, Roberto; Tsygankov, Sergey; Xu, Yanjun; Santangelo, Andrea; Zane, Silvia; Zhang, Shuang-Nan; Feng, Hua; Chen, Wei; Cheng, Quan; Hou, Xian; Imbrogno, Matteo; Israel, Gian Luca; Kelly, Ruth; Kong, Ling-Da; Liu, Kuan; Mushtukov, Alexander; Poutanen, Juri; Suleimanov, Valery; Tao, Lian; Tong, Hao; Turolla, Roberto; Wang, Weihua; Ye, Wentao; Zhao, Qing-Chang; Brice, Nabil; Geng, Jinjun; Lin, Lin; Wang, Wei-Yang; Xie, Fei; Xiong, Shao-Lin; Zhang, Shu; Fu, Yucong; Lai, Dong; Li, Jian; Li, Pan-Ping; Li, Xiaobo; Li, Xinyu; Liu, Honghui; Liu, Jiren; Peng, Jingqiang; Shui, Qingcang; Tuo, Youli; Wang, Hongguang; Wang, Wei; Weng, Shanshan; You, Yuan; Zheng, Xiaoping; Zhou, Xia
Publisher: Springer Science and Business Media LLC
: 2025
SCIENCE CHINA Physics, Mechanics and Astronomy
: 119505
: 68
: 11
: 1674-7348
: 1869-1927
DOI: https://doi.org/10.1007/s11433-025-2796-y
: https://doi.org/10.1007/s11433-025-2796-y
In this paper we present the science potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission, in its new configuration, for studies of strongly magnetized compact objects. We discuss the scientific potential of eXTP for quantum electrodynamic (QED) studies, especially leveraging the recent observations made with the NASA IXPE mission. Given eXTP's unique combination of timing, spectroscopy, and polarimetry, we focus on the perspectives for physics and astrophysics studies of strongly magnetized compact objects, such as magnetars and accreting X-ray pulsars. Developed by an international Consortium led by the Institute of High Energy Physics of the Chinese Academy of Sciences, the eXTP mission is expected to launch in early 2030.
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This work was supported by the China's Space Origins Exploration Program and the National Key R&D Program of China (Grant No. 2021YFA0718500). We acknowledge the support by the National Natural Science Foundation of China (Grant Nos. 12373051, 12273028, 12173103, 12261141691, and 12003009). R. Taverna and R. Turolla acknowledge the support by the Italian MUR (grant PRIN 2022-2022LW-PEXW grant, "An X-ray view of compact objects in polarized light", CUP C53D23001180006). V. Suleimanov thanks the German Research Foundation (DFG) grant WE 1312/59-1 for financial support. A. Mushtukov thanks UKRI Stephen Hawking fellowship. R. Kelly acknowledges the support by UKRI STFC (Grant No. ST/W507891/1). S.-N. Zhang is supported by the National Natural Science Foundation of China (Grant No. 12333007), the International Partnership Program of Chinese Academy of Sciences (Grant No. 113111KYSB20190020), and the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDA15020100). F. Xie is supported by the National Natural Science Foundation of China (Grant Nos. 12373041, and 12422306), and the Bagui Scholars Program (XF). N. Brice is supported by STFC (Grant No. ST/Y001060/1).
