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<p>We present the novel capabilities of the enhanced X-ray Timing and Polarimetry (eXTP) mission to study the strong gravity region around stellar-mass black holes in X-ray binary systems and supermassive black holes in active galactic nuclei. eXTP can combine X-ray spectral, timing, and polarimetric techniques to study the accretion process near black holes, measure black hole masses and spins, and test Einstein’s theory of General Relativity in the strong field regime. We show how eXTP can improve the current measurements of black holes of existing X-ray missions and we discuss the scientific questions that can be addressed.</p>

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Probing the strong gravity region of black holes with eXTP

  • 期刊论文

  • 发表日期：

    2025年9月23日

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  • Qingcui Bu,
  • Cosimo Bambi,
  • Lijun Gou,
  • Yanjun Xu,
  • Phil Uttley,
  • Alessandra De Rosa,
  • Andrea Santangelo,
  • Silvia Zane,
  • Hua Feng,
  • Shuang-Nan Zhang,
  • Chichuan Jin,
  • Haiwu Pan,
  • Xinwen Shu,
  • Francesco Ursini,
  • Yanan Wang,
  • Jianfeng Wu,
  • Bei You,
  • Yefei Yuan,
  • Wenda Zhang,
  • Stefano Bianchi,
  • Lixin Dai,
  • Tiziana Di Salvo,
  • Michal Dovčiak,
  • Yuan Feng,
  • Hengxiao Guo,
  • Adam Ingram,
  • Jiachen Jiang,
  • Vladimír Karas,
  • Dongyue Li,
  • Honghui Liu,
  • Guglielmo Masteroserio,
  • Giorgio Matt,
  • Sara Motta,
  • Guobin Mou,
  • Abdurakhmon Nosirov,
  • Zhen Pan,
  • Erlin Qiao,
  • Rongfeng Shen,
  • Qingcang Shui,
  • Yujia Song,
  • Jiří Svoboda,
  • Lian Tao,
  • Alexandra Veledina,
  • Zhen Yan,
  • Tong Zhao

摘要

We present the novel capabilities of the enhanced X-ray Timing and Polarimetry (eXTP) mission to study the strong gravity region around stellar-mass black holes in X-ray binary systems and supermassive black holes in active galactic nuclei. eXTP can combine X-ray spectral, timing, and polarimetric techniques to study the accretion process near black holes, measure black hole masses and spins, and test Einstein’s theory of General Relativity in the strong field regime. We show how eXTP can improve the current measurements of black holes of existing X-ray missions and we discuss the scientific questions that can be addressed.