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Joint Analysis of Energy and RMS Spectra from MAXI J1535-571 with Insight-HXMT

A new black hole X-ray binary (BHXRB) MAXI J1535-571 was discovered by MAXI during its outburst in 2017. Using observations taken by the first Chinese X-ray satellite, the Hard X-ray Modulation Telescope (dubbed as Insight-HXMT), we perform a joint spectral analysis (2-150 keV) in both energy and time domains. The energy spectra provide the essential input for probing the intrinsic Quasi-Periodic Oscillation (QPO) fractional rms spectra (FRS). Our results show that during the intermediate state, the energy spectra are in general consistent with those reported by Swift/XRT and NuSTAR. However, the QPO FRS become harder and the FRS residuals may suggest the presence of either an additional power-law component in the energy spectrum or a turn-over in the intrinsic QPO FRS at high energies.

preprint2020arXivOpen access

L. D. Kong S. Zhang Y. P. Chen L. Ji S. N. Zhang Y. R. Yang L. Tao X. Ma J. L. Qu F. J. Lu Q. C. Bu L. Chen L. M. Song T. P. Li Y. P. Xu X. L. Cao Y. Chen C. Z. Liu C. Cai Z. Chang G. Chen T. X. Chen Y. B. Chen W. Cui W. W. Cui J. K. Deng Y. W. Dong Y. Y. Du M. X. Fu G. H. Gao H. Gao M. Gao M. Y. Ge Y. D. Gu J. Guan C. C. Guo D. W. Han Y. Huang J. Huo S. M. Jia L. H. Jiang W. C. Jiang J. Jin B. Li C. K. Li G. Li M. S. Li W. Li X. Li X. B. Li X. F. Li Y. G. Li Z. W. Li X. H. Liang J. Y. Liao G. Q. Liu H. X. Liu H. W. Liu S. Z. Liu X. J. Liu Y. N. Liu B. Lu X. F. Lu Q. Luo T. Luo B. Meng Y. Nang J. Y. Nie G. Ou X. Q. Ren N. Sai X. Y. Song L. Sun Y. Tan Y. L. Tuo C. Wang G. F. Wang J. Wang P. J. Wang W. S. Wang Y. S. Wang X. Y. Wen B. Y. Wu B. B. Wu M. Wu G. C. Xiao S. Xiao S. L. Xiong H. Xu J. W. Yang S. Yang Y. J. Yang Q. B. Yi Y. You A. M. Zhang C. M. Zhang F. Zhang H. M. Zhang J. Zhang P. Zhang T. Zhang W. Zhang W. C. Zhang W. Z. Zhang Y. Zhang Y. F. Zhang Y. J. Zhang Y. H. Zhang Z. Zhang Z. L. Zhang H. S. Zhao X. F. Zhao S. J. Zheng Y. G. Zheng D. K. Zhou J. F. Zhou Y. X. Zhu Y. Zhu

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Joint Analysis of Energy and RMS Spectra from MAXI J1535-571 with Insight-HXMT

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