Insight-HXMT observations of jet-like corona in a black hole X-ray binary MAXI J1820+070

Abstract

A black hole X-ray binary produces hard X-ray radiation from its corona and disk when the accreting matter heats up. During an outburst, the disk and corona co-evolves with each other. However, such an evolution is still unclear in both its geometry and dynamics. Here we report the unusual decrease of the reflection fraction in MAXI J1820+070, which is the ratio of the coronal intensity illuminating the disk to the coronal intensity reaching the observer, as the corona is observed to contrast during the decay phase. We postulate a jet-like corona model, in which the corona can be understood as a standing shock where the material flowing through. In this dynamical scenario, the decrease of the reflection fraction is a signature of the corona's bulk velocity. Our findings suggest that as the corona is observed to get closer to the black hole, the coronal material might be outflowing faster.

11 pages, 5 figures; published in Nature Communications; An artist's impression of Figure 5 is updated here, and the animation is available at http://youbei.work/research/

References in corpus (10)

• Modelling the behaviour of accretion flows in X-ray binaries
• The corona contracts in a black-hole transient
• Discovery of oscillations above 200 keV in a black hole X-ray binary with Insight-HXMT
• A radio parallax to the black hole X-ray binary MAXI J1820+070
• An accretion disc-corona model for X-ray spectra of active galactic nuclei
• Revealing accretion onto black holes: X-ray reflection throughout three outbursts of GX 339-4
• The Soft State of the Black Hole Transient Source MAXI J1820+070: Emission from the Edge of the Plunge Region?
• The evolution of the broadband temporal features observed in the black-hole transient MAXI J1820+070 with Insight-HXMT
• NuSTAR low energy effective area correction due to thermal blanket tear
• Coronal properties of black hole X-ray binaries in the hard state as seen by NuSTAR and Swift

Cited by in corpus (50)

• Disk, Corona, Jet Connection in the Intermediate State of MAXI J1820+070 Revealed by NICER Spectral-Timing Analysis
• The Effect of Returning Radiation on Relativistic Reflection
• The evolution of the corona in MAXI J1535-571 through type-C quasi-periodic oscillations with Insight-HXMT
• NICER, NuSTAR and Insight-HXMT views to the newly discovered black hole X-ray binary Swift J1727.8--1613
• Observations of a black hole X-ray binary indicate formation of a magnetically arrested disk
• A variable corona during the transition from type-C to type-B quasi-periodic oscillations in the black hole X-ray binary MAXI J1820+070
• Physical origin of the nonphysical spin evolution of MAXI J1820+070
• MAXI J1820+070 X-ray spectral-timing reveals the nature of the accretion flow in black hole binaries
• Insight-HXMT, NuSTAR and INTEGRAL Data Show Disk Truncation in the Hard State of the Black-Hole X-Ray Binary MAXI J1820+070
• The hard to soft transition of GX 339-4 as seen by Insight-HXMT
• A NICER look at the jet-like corona of MAXI J1535-571 through type-B quasi-periodic oscillations
• A detailed view of low-frequency quasi-periodic oscillation in the broadband 0.2-200 keV with Insight-HXMT and NICER
• Chasing the break: Tracing the full evolution of a black hole X-ray binary jet with multi-wavelength spectral modeling
• Timing properties of the X-ray accreting pulsar 1A 0535+262 studied with Insight-HXMT
• Wavelet analysis of MAXI J1535-571 with Insight-HXMT
• A Phase-resolved View of the Low-frequency Quasiperiodic Oscillations from the Black Hole Binary MAXI J1820+070
• Analysis of the reflection spectra of MAXI J1535-571 in the hard and intermediate states
• Accretion Scenario of MAXI J1820+070 during 2018 Outbursts with Multi-mission Observations
• Multiwavelength observations of MAXI J1820+070 during its outburst decay and subsequent mini-outburst
• Fast transitions of X-ray variability in the black hole transient GX 339--4: comparison with MAXI J1820+070 and MAXI J1348-630
• Low Frequency Quasi-periodic Oscillation in MAXI J1820+070: Revealing distinct Compton and Reflection Contributions
• A broadband spectral-timing study of QPOs in the bright black hole X-ray binary Swift J1727.8-1613
• Trace the Accretion Geometry of H 1743--322 with Type C Quasi-periodic Oscillations in Multiple Outbursts
• X-ray spectral correlations in a sample of Low-mass black hole X-ray binaries in the hard state
• A possible overall scenario for the outburst evolution of MAXI J1820+070 revealed by Insight-HXMT
• Reflare in MAXI J1348-630]{Evolution of disc and corona in MAXI J1348-630 during the 2019 reflare: NICER and Insight-HXMT view
• Investigating the nature and properties of MAXI J1810-222 with radio and X-ray observations
• Insight-HXMT, NICER and NuSTAR views to the newly discovered black hole X-ray binary Swift J151857.0--572147
• The 2018 outburst of MAXI J1820+070 as seen by Insight-HXMT
• The dynamical structure of the outflows driven by a large-scale magnetic field
• Evidence for a dynamic corona in the short-term time lags of black hole X-ray binary MAXI J1820+070
• Multiwavelength Observations of the Black Hole X-ray Binary MAXI J1820$+$070 in the Rebrightening Phase
• Intermittent QPO properties of MAXI J1820+070 revealed by Insight-HXMT
• Insight-HXMT Detections of Hard X-ray Tails in Scorpius X-1
• Measuring black hole spins with x-ray reflection spectroscopy: A GRMHD outlook
• Variable QPO lags and reduced coherence between the disc and corona in MAXI J1820+070
• Modeling fast X-ray variability around an accreting black hole
• The Accretion-Ejection Connection in the Black Hole X-ray Binary MAXI J1820$+$070
• Black-hole X-ray binary Swift J1727.8$-$1613 shows simultaneous Type-B and Type-C quasi-periodic oscillations across the hard-intermediate and soft-intermediate states
• Monte Carlo simulation of the Compton scattering and disk reflection of a cylinder with hot electrons moving away from a black hole
• A possible jet and corona configuration for Swift J1727.8--1613 during the hard state
• Tracking optical variability and outflows across the accretion states of the black hole transient MAXI J1820+070
• Accretion with two-phase gas supply and its application in black hole X-ray binaries
• Black holes: accretion processes in X-ray binaries
• Lamp-post with an outflow and the hard state of Cyg X-1
• On the infrared coincidence: what is the jet contribution to the X-ray power law in GX 339-4?
• Accretion Geometry of Black Hole X-ray Binaries: Insights from X-ray Observations
• Tracking the evolution of the accretion flow in MAXI J1820+070 during its hard state with the JED-SAD model
• Large optical modulations during 2018 outburst of MAXI J1820+070 reveal evolution of warped accretion disc through X-ray state change
• Spectral Analysis of New Black Hole Candidate AT2019wey Observed by NuSTAR