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Impact of reflection Comptonization on X-ray reflection spectroscopy: the case of EXO 1846-031

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arxiv 2404.06893 v2 pith:VEB3ZTWZ submitted 2024-04-10 astro-ph.HE

Songcheng Li , Honghui Liu , Cosimo Bambi , James F. Steiner , Zuobin Zhang This is my paper · ORCID
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Within the disk-corona model, it is natural to expect that a fraction of reflection photons from the disk are Compton scattered by the hot corona (reflection Comptonization), even if this effect is usually ignored in X-ray reflection spectroscopy studies. We study the effect by using NICER and NuSTAR data of the Galactic black hole EXO 1846-031 in the hard-intermediate state with the model SIMPLCUTX. Our analysis suggests that a scattered fraction of order 10% is required to fit the data, but the inclusion of reflection Comptonization does not change appreciably the measurements of key-parameters like the black hole spin and the inclination angle of the disk.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Testing non-circular black hole spacetime with X-ray reflection

    gr-qc 2026-02 conditional novelty 6.0 of 10

    X-ray reflection data for EXO 1846–031 cannot distinguish the non-circular deformation parameter ℓ_NP from zero, remaining consistent with the Kerr hypothesis.

  2. Impact of the returning radiation on X-ray reflection spectroscopy measurements: the case of Galactic black holes

    astro-ph.HE 2025-01 conditional novelty 6.0 of 10

    Including returning radiation in relxill does not significantly alter the best-fit parameters of three Galactic black holes.

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