21 citations · 68 across the 15 of their papers we have counts for
15 papers · 1 filter
Multi-band power color-color diagrams of three black hole X-ray binaries observed with Insight-HXMT
Shao-Feng Liu, Long Ji, Yanan Wang
Power color-color diagrams (PCCDs) provide a useful diagnostic tool for studying the evolution of outbursts in black hole X-ray binaries. In this paper, we present power color-colo…
Detection and luminosity-dependent evolution of the high-energy hump in the Be/X-ray pulsar 1A 1118-61
Alexander Salganik, Sergey S. Tsygankov, Sergey V. Molkov +12
Context. Accreting X-ray pulsars exhibit strong luminosity-dependent changes in their broad-band spectra. At high luminosities, their spectra are usually described by a power-law c…
Probing the emission geometry of the X-ray pulsar 2S 1417624 during a weak outburst with NICER, IXPE, and NuSTAR
Menglei Zhou, Pengju Wang, Honghui Liu +12
We report results from a multi-mission observational campaign of the transient X-ray pulsar 2S~1417624 during its 2025 outburst, using data from NICER, IXPE, and NuSTAR. Phase-a…
NICER, NuSTAR and Insight-HXMT views to black hole X-ray binary SLX 1746--331
Jing-Qiang Peng, Shu Zhang, Qing-Cang Shui +13
We study the spectral and temporal properties of the black hole X-ray transient binary SLX 1746--331 during the 2023 outburst with NICER, NuSTAR, and Insight-HXMT observations. Thr…
Timing and spectral studies of the Be/X-ray binary EXO 2030+375 using Insight-HXMT observations
Yu-Jia Du, Lorenzo Ducci, Long Ji +5
We report the X-ray spectral and timing analysis of the high mass X-ray binary EXO 2030+375 during the 2021 type-II outburst based on the Insight-HXMT observations. Pulsations can…
The high-energy cyclotron line in 2S 1417-624 discovered with Insight-HXMT during the 2018 outburst
Q. Liu, A. Santangelo, L. D. Kong +7
We report a detailed timing and spectral analysis of the X-ray pulsar 2S~1417-624 using the data from Insight-HXMT during the 2018 outburst. The pulse profiles are highly variable…
Temporal and spectral variations of the X-ray pulsar Cen X-3 observed by NuSTAR
Qi Liu, Wei Wang, Andrea Santangelo +3
We report a time-resolved analysis of the accreting X-ray pulsar Cen X-3 using observations carried out by NuSTAR, which cover approximately two binary orbits in different intensit…
Unraveling the hybrid origins of the X-ray non-thermal emission from IGR J17091-3624
Zikun Lin, Yanan Wang, Santiago del Palacio +8
We present a comprehensive study based on multi-wavelength observations from the NuSTAR, NICER, Swift, Fermi, NEOWISE, and ATCA telescopes during the 2022 outburst of the black hol…
Polarization Perspectives on Hercules X-1: Further Constraining the Geometry
Qingchang Zhao, Hancheng Li, Lian Tao +24
We conduct a comprehensive analysis of the accreting X-ray pulsar, Hercules X-1, utilizing data from IXPE and NuSTAR. IXPE performed five observations of Her X-1, consisting of thr…
The 2018 outburst of MAXI J1820+070 as seen by Insight-HXMT
Ningyue Fan, Songyu Li, Rui Zhan +8
We present an analysis of the whole 2018 outburst of the black hole X-ray binary MAXI J1820+070 with Insight-HXMT data. We focus our study on the temporal evolution of the paramete…
Cyclotron line evolution revealed with pulse-to-pulse analysis in the 2020 outburst of 1A 0535+262
Qingcang Shui, Shu Zhang, Pengju Wang +17
We present a detailed analysis of the X-ray luminosity (Lx) dependence of the cyclotron absorption line energy (Ecyc) for the X-ray binary pulsar 1A 0535+262 during its 2020 giant…
Correlated spectro-polarimetric study along the Z track in XTE J1701-462 puts constraints on its coronal geometry
Wei Yu, Qingcui Bu, Victor Doroshenko +13
Context. In September 2022, the transient neutron star low-mass X-ray binary XTE J1701-462 went into a new outburst. Aims. The objective of this work is to examine the evolution of…
Timing and Spectral Analysis of HMXB 4U 1700-37 Observed with Insight-HXMT
Hua Xiao, Long Ji, Peng Zhang +5
We report timing and spectral studies of the high mass X-ray binary 4U 1700-37 using Insight-HXMT observations carried out in 2020 during its out-of-eclipse state. We found signifi…
The cyclotron line energy in Her X-1: stable after the decay
R. Staubert, L. Ducci, L. Ji +6
We summarize the results of a dedicated effort between 2012 and 2019 to follow the evolution of the cyclotron line in Her~X-1 through repeated NuSTAR observations. The previously o…
Accretion disc by Roche lobe overflow in the supergiant fast X-ray transient IGR J08408-4503
L. Ducci, P. Romano, L. Ji +1
Supergiant fast X-ray transients (SFXTs) are X-ray binary systems with a supergiant companion and likely a neutron star, which show a fast ( s) and high variability with…