Probing the Strong Gravity Region of Black Holes with eXTP

2025/06/09 by Qingcui Bu, Cosimo Bambi, Bu, Qingcui +86 · 1 citation
Physics and Astronomy · #Astrophysical Phenomena and Observations #Pulsars and Gravitational Waves Research #Galaxies: Formation, Evolution, Phenomena

paper · pdf · doi:10.48550/arxiv.2506.08105

Abstract

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.

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Cited by

• The First X-ray Polarimetry of GRS 1739--278 Reveals Its Rapidly Spinning Black Hole

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