Bai-Sheng Liu

An Intermediate-mass Black Hole Lurking in A Galactic Halo Caught Alive during Outburst

Dongjia Li, Ning Jiang, Li‐Xin Dai, Haiyang Cheng et autres

International audience

cn, au, hk, de, fr, gb, es, us, nl (code pays fourni par la source)

A Spectral-timing Study of the Inner Flow Geometry in MAXI J1535-571 with Insight-HXMT and NICER

Wei Yu, Qingcui Bu, He-Xin Liu, Y. Huang et autres

Abstract We have performed a spectral-timing analysis of the black hole X-ray binary MAXI J1535-571 during its 2017 outburst, with the aim of exploring the evolution of the inner accretion flow geometry. X-ray reverberation lags are observed in the hard-intermediate state (HIMS) …

cn, de (code pays fourni par la source)

A spectral-timing study of the inner flow geometry in MAXI J1535--571 with $Insight$-HXMT and NICER

Wei Yu, Qingcui Bu, He-Xin Liu, Y. Huang et autres

We have performed a spectral-timing analysis on the black hole X-ray binary MAXI J1535--571 during its 2017 outburst, with the aim of exploring the evolution of the inner accretion flow geometry. X-ray reverberation lags are observed in the hard-intermediate state (HIMS) and …

Peculiar Disk Behaviors of the Black Hole Candidate MAXI J1348–630 in the Hard State Observed by Insight-HXMT and Swift

W. Zhang, Lian Tao, Roberto Soria, Jin‐Lu Qu et autres

Abstract We present a spectral study of the black hole candidate MAXI J1348−630 during its 2019 outburst, based on monitoring observations with Insight-HXMT and Swift. Throughout the outburst, the spectra are well fitted with power-law plus disk-blackbody components. In the soft-intermediate and …

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New Insight into the Rapid Burster by Insight-HXMT

Yupeng Chen, Shu Zhang, Shuang‐Nan Zhang, Long Ji et autres

Abstract We report the timing and spectral analyses of the type-II X-ray bursts from the rapid burster (MXB 1730–335) observed by the Hard X-ray Modulation Telescope (Insight-HXMT) and Swift/X-Ray Telescope (XRT). By stacking the long-duration bursts, we find for the first time …

cn (code pays fourni par la source)

Accretion Torque Reversals in GRO J1008-57 Revealed by Insight-HXMT

Wei Wang, Y. M. Tang, Y. L. Tuo, Prahlad R. Epili et autres

GRO J1008-57, as a Be/X-ray transient pulsar, is considered to have the highest magnetic field in known neutron star X-ray binary systems. Observational data of the X-ray outbursts in GRO J1008-57 from 2017 to 2020 were collected by the Insight-HXMT satellite. In …

X-ray reprocessing in accreting pulsar GX 301-2 observed with Insight-HXMT

Long Ji, Victor Doroshenko, Valery F. Suleimanov, Andrea E. Santangelo et autres

ABSTRACT We investigate the absorption and emission features in observations of GX 301-2 detected with Insight-HXMT/LE in 2017–2019. At different orbital phases, we found prominent Fe Kα, Kβ, and Ni Kα lines, as well as Compton shoulders and Fe K-shell absorption edges. …

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Two Complete Spectral Transitions of Swift J0243.6+6124 Observed by Insight-HXMT

Ling-Da Kong, Shuo Zhang, Yupeng Chen, Shuang‐Nan Zhang et autres

Abstract We performed the broadband (1–100 keV) spectral analysis of the first Galactic Be ultraluminous X-ray pulsar (BeULX) Swift J0243.6+6124 observed by Insight-HXMT during the 2017−2018 outburst. The results show spectral transitions at two typical luminosities, roughly consistently with those reported previously …

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Discovery of oscillations above 200 keV in a black hole X-ray binary with Insight-HXMT

Xiang Ma, Lian Tao, Shuang‐Nan Zhang, Liang Zhang et autres

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Insight-HXMT Firm Detection of the Highest-energy Fundamental Cyclotron Resonance Scattering Feature in the Spectrum of GRO J1008-57

Mingyu Ge, Long Ji, Shuang‐Nan Zhang, Andrea E. Santangelo et autres

Abstract We report on the observation of the accreting pulsar GRO J1008-57 performed by Insight-Hard X-ray Modulation Telescope (HXMT) at the peak of the source’s 2017 outburst. Pulsations are detected with a spin period of 93.283(1) s. The pulse profile shows double …

cn, de (code pays fourni par la source)

Confirming the spin parameter of the black hole in Cygnus X-1 using the Insight-HXMT

Xueshan Zhao, Yanting Dong, Lijun Gou, Ye Feng et autres

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Insight-HXMT insight into switch of the accretion mode: the case of the X-ray pulsar 4U 1901+03

Y. L. Tuo, Long Ji, Sergey S. Tsygankov, T. Mihara et autres

We use the In data collected during the 2019 outburst from X-ray pulsar 4U 1901+03 to complement the orbital parameters reported by Fermi/GBM. Using the Insight-HXMT, we examine the correlation between the derivative of the intrinsic spin frequency and bolometric flux based …