We study the evolution of the temporal properties of MAXI J1820+070 during the 2018 outburst in its hard state from MJD 58,190 to 58,289 with Insight-HXMT in a broad energy band 1-150 keV. We find different behaviors of the hardness ratio, the fractional rms and time lag before and after MJD 58,257, suggesting a transition occurred around this point. The observed time lags between the soft photons in the 1-5 keV band and the hard photons in higher energy bands, up to 150 keV, are frequency-dependent: the time lags in the low-frequency range, 2-10 mHz, are both soft and hard lags with a timescale of dozens of seconds but without a clear trend along the outburst; the time lags in the high-frequency range, 1-10 Hz, are only hard lags with a ti...
International audienceWe report on simultaneous sub-second optical and X-ray timing observations of ...
We present X-ray timing results of the new black hole candidate MAXI J1535-571 during its 2017 outbu...
We investigated the temporal behavior of the new black hole transient XTE J1650-500 with the Rossi X...
We study the evolution of the temporal properties of MAXI J1820+070 during the 2018 outburst in its ...
International audienceWe study the evolution of the temporal properties of MAXI J1820+070 during the...
We report on a multi-epoch campaign of rapid optical/X-ray timing observations of the superbright 20...
We present multiwavelength fast timing observations of the black hole X-ray binary MAXI J1820+070 (A...
International audienceWe report on a multiepoch campaign of rapid optical/X-ray timing observations ...
Context. We present a systematic X-ray spectral-timing study of the recently discovered, exceptional...
Abstract We analyze five epochs of Neutron star Interior Composition Explorer (NICER...
Low-frequency Quasi-Periodic Oscillations (LFQPOs) are commonly observed in black hole binaries whil...
Context. Black hole transients, as a class, exhibit during their outbursts a correlation between the...
We present results from quasi-simultaneous multiwavelength observations of the Galactic black hole X...
We report on ongoing NICER monitoring observations of the black hole transient MAXI J1820+070 (ATel ...
International audienceWe report on simultaneous sub-second optical and X-ray timing observations of ...
International audienceWe report on simultaneous sub-second optical and X-ray timing observations of ...
We present X-ray timing results of the new black hole candidate MAXI J1535-571 during its 2017 outbu...
We investigated the temporal behavior of the new black hole transient XTE J1650-500 with the Rossi X...
We study the evolution of the temporal properties of MAXI J1820+070 during the 2018 outburst in its ...
International audienceWe study the evolution of the temporal properties of MAXI J1820+070 during the...
We report on a multi-epoch campaign of rapid optical/X-ray timing observations of the superbright 20...
We present multiwavelength fast timing observations of the black hole X-ray binary MAXI J1820+070 (A...
International audienceWe report on a multiepoch campaign of rapid optical/X-ray timing observations ...
Context. We present a systematic X-ray spectral-timing study of the recently discovered, exceptional...
Abstract We analyze five epochs of Neutron star Interior Composition Explorer (NICER...
Low-frequency Quasi-Periodic Oscillations (LFQPOs) are commonly observed in black hole binaries whil...
Context. Black hole transients, as a class, exhibit during their outbursts a correlation between the...
We present results from quasi-simultaneous multiwavelength observations of the Galactic black hole X...
We report on ongoing NICER monitoring observations of the black hole transient MAXI J1820+070 (ATel ...
International audienceWe report on simultaneous sub-second optical and X-ray timing observations of ...
International audienceWe report on simultaneous sub-second optical and X-ray timing observations of ...
We present X-ray timing results of the new black hole candidate MAXI J1535-571 during its 2017 outbu...
We investigated the temporal behavior of the new black hole transient XTE J1650-500 with the Rossi X...