Estimating the black hole spin for the X-ray binary MAXI J1820+070

Abstract

MAXI J1820+070 is a newly-discovered black hole X-ray binary, whose dynamical parameters, namely the black hole mass, the inclination angle and the source distance, have been estimated recently. \emph{Insight}-HXMT have observed its entire outburst from March 14th, 2018. In this work, we attempted to estimate the spin parameter~$a_{\ast }$, using the continuum-fitting method and applying a fully-relativistic thin disk model to the soft-state spectra obtained by \emph{Insight}-HXMT. It is well know that $a_{\ast }$ is strongly dependent on three dynamical parameters in this method, and we have examined two sets of parameters. Adopting our preferred parameters: $M$ = $8.48_{-0.72}^{+0.79}{M}_{\odot }$, $i=63^{\circ }\pm 3^{\circ }$ and $D=2.96\pm 0.33$ kpc, we found a slowly-spinning black hole of $a_{\ast }=0.14\pm 0.09$ ($1\sigma$), which give a prograde spin parameter as majority of other systems show. While it is also possible for the black hole to have a retrograde spin (less than 0) if different dynamical parameters are taken.

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Cited by in corpus (26)

• A Systematic View of Ten New Black Hole Spins
• Black hole spin-orbit misalignment in the X-ray binary MAXI J1820+070
• A detailed view of low-frequency quasi-periodic oscillation in the broadband 0.2-200 keV with Insight-HXMT and NICER
• The spins of the Galactic black holes in MAXI J1535-571 and 4U 1630-472 from Insight-HXMT
• The accretion flow geometry of MAXI J1820+070 through broadband noise research with Insight-HXMT
• A Phase-resolved View of the Low-frequency Quasiperiodic Oscillations from the Black Hole Binary MAXI J1820+070
• The origin of optical emission lines in the soft state of X-ray binary outbursts: the case of MAXI J1820+070
• Analysis of the reflection spectra of MAXI J1535-571 in the hard and intermediate states
• Common origin for black holes in both high mass X-ray binaries and gravitational-wave sources
• Low Frequency Quasi-periodic Oscillation in MAXI J1820+070: Revealing distinct Compton and Reflection Contributions
• A multi-wavelength study of the hard and soft states of MAXI J1820+070 during its 2018 outburst
• Thin accretion disk signatures in hybrid metric-Palatini gravity
• A possible overall scenario for the outburst evolution of MAXI J1820+070 revealed by Insight-HXMT
• A moderate spin for the black hole in X-ray binary MAXI J1348-630 revealed by Insight-HXMT
• Measuring Black Hole Spins through X-ray Reflection Spectroscopy and the Relativistic Precession Model: the case of XTE J1859+226
• The 2018 outburst of MAXI J1820+070 as seen by Insight-HXMT
• The spin measurement of MAXI J1348-630 using the Insight-HXMT data
• Broadband X-ray Spectroscopy and Estimation of Spin of the Galactic Black Hole Candidate GRS 1758-258
• Accretion Properties and Estimation of Spin of Galactic Black Hole Candidate Swift J1728.9-3613 with NuSTAR during its 2019 outburst
• The spin measurement of MAXI J0637-430: a black hole candidate with high disk density
• Reflection Spectra of Accretion Disks Illuminated by an Off-Axis Corona
• Optical and X-ray timing analysis of the 2018-2020 outburst and rebrightening of the black-hole transient MAXI J1820+070
• Ultraviolet spectroscopy of the black hole X-ray binary MAXI J1820+070 across a state transition
• An apparent positive relation between spin and orbital angular momentum in X-ray binaries
• Tracking the evolution of the accretion flow in MAXI J1820+070 during its hard state with the JED-SAD model
• A Revised Spin of the Black Hole in GRS 1716-249 with a New Distance