Impact of reflection Comptonization on X-ray reflection spectroscopy: the case of EXO 1846-031
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909285616713728 |
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| author | Li, Songcheng Liu, Honghui Bambi, Cosimo Steiner, James F. Zhang, Zuobin |
| author_facet | Li, Songcheng Liu, Honghui Bambi, Cosimo Steiner, James F. Zhang, Zuobin |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_06893 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Impact of reflection Comptonization on X-ray reflection spectroscopy: the case of EXO 1846-031 Li, Songcheng Liu, Honghui Bambi, Cosimo Steiner, James F. Zhang, Zuobin High Energy Astrophysical Phenomena 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. |
| title | Impact of reflection Comptonization on X-ray reflection spectroscopy: the case of EXO 1846-031 |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2404.06893 |