4 papers
Polarized quasi-periodic oscillations reveal kink instability in magnetized jets of black holes
Jiashi Chen, Pengfu Tian, Wei Wang
The dynamics and instability of the magnetized jets connected to jet acceleration are complicated and are not yet well understood. Quasi-periodic oscillations (QPOs) as special tim…
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…
Quasi-periodic oscillations of GHz-band polarization in a black hole
Wei Wang, Jiashi Chen, Pengfu Tian +10
Relativistic jets from accreting black holes (BHs) radiate non-thermal emission which is highly variable in different time scales. Magnetic fields anchored to a rotating BH or accr…