Quasi-periodic oscillations in GX 339-4 during the 2021 Outburst observed with Insight-HXMT

Y. J. Jin, W. Wang, X. Chen +5

A new outburst of GX 339$-$4 in 2021 was monitored by the Hard X-ray Modulation Telescope (\textit{Insight}-HXMT). By using the data of \textit{Insight}-HXMT from February to March…