A Detailed View of Low-frequency Quasi-periodic Oscillation in the Broadband 0.2โ200 keV with Insight-HXMT and NICER
A Detailed View of Low-frequency Quasi-periodic Oscillation in the Broadband 0.2โ200 keV with Insight-HXMT and NICER
Abstract We report the X-ray timing results of the black hole candidate MAXI J1820+070 during its 2018 outburst using the Hard X-ray Modulation Telescope (Insight-HXMT) and Neutron Star Interior Composition Explorer Mission (NICER) observations. Low-frequency quasi-periodic oscillations (LFQPOs) are detected in the low/hard state and the hard intermediate state, which โฆ