11 papers · 1 filter
Millihertz quasi-periodic oscillations in accreting X-ray pulsars
Wen Yang, Wei Wang
Accreting neutron stars exhibit pulsed X-rays and complex temporal variability across multi-wavelengths and different timescales. This variability could be driven by various physic…
Quasi-periodic oscillations and reflection feature evolution in 4U 1630-47 observed with Insight-HXMT
Jiashi Chen, Wei Wang
The Galactic black hole (BH) X-ray binary 4U 1630-47 went into a new outburst in 2021 after 600 days from its 2020 outburst. We perform a detailed analysis of quasi-periodic…
The spin measurement of the black hole SLX 1746-331 using Insight-HXMT observations
Jiashi Chen, Wei Wang
We present an X-ray spectral analysis of a black hole X-ray binary SLX 1746-331 during the 2023 outburst using five \textit{Insight}-HXMT observations. We jointly use the reflectio…
The hot accretion flow evolution in the black hole X-ray binary MAXI J1348-630
Hanji Wu, Wei Wang
MAXI J1348-630 as a low-mass black hole binary system in the Galaxy showed an X-ray outburst in 2019. We analyzed the Insight-HXMT spectral data in the low hard state (LHS) and int…
Estimating the Black Hole Spin for the X-Ray Binary MAXI J1727-203 Based on Insight-HXMT
Haifan Zhu, Wei Wang
We constrain the spin of the black hole (BH) candidate MAXI J1727-203 using Insight-HXMT data. Due to limited HXMT observations covering only part of the outburst, NICER data were…
Studying the variations of the cyclotron line in Cen X-3 using Insight-HXMT
Qi Liu, Wei Wang, Wen Yang +2
We investigate the cyclotron resonant scattering features (CRSFs) of the accreting X-ray pulsar Cen X-3 and significantly detect the 29 keV cyclotron line features in the hard X-ra…