Reflare in MAXI J1348-630]{Evolution of disc and corona in MAXI J1348-630 during the 2019 reflare: NICER and Insight-HXMT view

Abstract

In this work, using \textit{NICER} and \textit{Insight}-HXMT observations, we present a study of the broadband spectral and timing evolution of the source throughout the first reflare, which occurred about 4 months after the major outburst. Our findings suggest that during the reflare, below a critical luminosity $L_{\mathrm{crit}}\sim 2.5\times 10^{36}$ (D/2.2 kpc)${}^2$ erg s${}^{-1}$, the scale of the corona shrinks in the radial direction, whereas the inner radius of the disk does not change considerably; however, the inner radius of the disk starts to move inward when the source exceeds the critical luminosity. We conclude that at low luminosity the increase in accretion rate only heats up the inner zone of the accretion disc without the transfer of angular momentum which occurs above a certain luminosity.

References in corpus (47)

• On the Absorption of X-rays in the Interstellar Medium
• X-ray Properties of Black-Hole Binaries
• Advection-Dominated Accretion: Underfed Black Holes and Neutron Stars
• Advection-Dominated Accretion and the Spectral States of Black Hole X-Ray Binaries: Application to Nova Muscae 1991
• Modelling the behaviour of accretion flows in X-ray binaries
• Broad-band gamma-ray and X-ray spectra of NGC 4151 and their implications for physical processes and geometry
• Thermal Equilibria of Accretion Disks
• Be/X-ray binaries
• Optimal binning of X-ray spectra and response matrix design
• Low frequency QPO spectra and Lense-Thirring precession
• The evolution of black hole states
• Ubiquitous equatorial accretion disc winds in black hole soft states
• Estimating the Spin of Stellar-Mass Black Holes via Spectral Fitting of the X-ray Continuum
• Overview to the Hard X-ray Modulation Telescope (Insight-HXMT) Satellite
• The corona contracts in a black-hole transient
• Stingray: A Modern Python Library For Spectral Timing
• The Medium Energy (ME) X-ray telescope onboard the Insight-HXMT astronomy satellite
• Spectral and temporal properties of Compton scattering by mildly relativistic thermal electrons
• The evolution of the high-energy cut-off in the X-Ray spectrum of the GX 339-4 across a hard-to-soft transition
• X-ray emission from black-hole binaries
• Comptonization in Super-Eddington Accretion Flow and Growth Timescale of Supermassive Black Holes
• Discovery of oscillations above 200 keV in a black hole X-ray binary with Insight-HXMT
• The Existence of Inner Cool Disks in the Low Hard State of Accreting Black Holes
• Accretion Disk Spectra of the Ultra-luminous X-ray Sources in Nearby Spiral Galaxies and Galactic Superluminal Jet Sources
• Spectral and Fourier analyses of X-ray QPO in accreting black holes
• Insight-HXMT observations of jet-like corona in a black hole X-ray binary MAXI J1820+070
• Patterns of energy-dependent variability from Comptonization
• The black hole transient MAXI J1348-630: evolution of the compact and transient jets during its 2019/2020 outburst
• A Global Study of the Behaviour of Black Hole X-ray Binary Discs
• NICER observations reveal that the X-ray transient MAXI J1348-630 is a Black Hole X-ray binary
• On the Properties of Inner Cool Disks in the Hard State of Black Hole X-Ray Transient Systems
• The Reflares and Outburst Evolution in the Accreting Millisecond Pulsar SAX J1808.4-3658: a Disk Truncated Near Co-rotation?
• Discovery of the black hole X-ray binary transient MAXIJ1348-630
• A giant X-ray dust scattering ring around the black hole transient MAXI J1348-630 discovered with SRG/eROSITA
• Measuring the distance to the black hole candidate X-ray binary MAXI J1348-630 using HI absorption
• The hard to soft spectral transition in LMXBs - affected by recondensation of gas into an inner disk
• The effect of coronal radiation on a residual inner disk in the low/hard spectral state of black hole X-ray binary systems
• A NICER look at the state transitions of the black hole candidate MAXI J1535-571 during its reflares
• Detection of X-ray spectral state transitions in mini-outbursts of black hole transient GRS 1739-278
• Variability and phase lags of the type-C quasi-periodic oscillation of MAXI J1348-630 with NICER
• Detailed analysis on the reflection component for the black hole candidate MAXI J1348-630
• The hybrid radio/X-ray correlation of the black hole transient MAXI J1348-630
• The Innermost Extremes of Black Hole Accretion
• The condensation of the corona for the correlation between the hard X-ray photon index $\Gamma$ and the reflection scaling factor $\Re$ in active galactic nuclei
• Peculiar disk behaviors of the black hole candidate MAXI J1348-630 in the hard state observed by Insight-HXMT and Swift
• State transitions of GX 339-4 during its outburst rising phase
• Detection of low-frequency breaks in power density spectrum of GX 339-4 in faint low/hard state observations using AstroSat data

Cited by in corpus (3)

• Back to business: SLX 1746--331 after 13 years of silence
• The full evolution of the type-C QPO in MAXI J1348-630 revealed by Insight-HXMT
• A search for optical counterparts in quiescent black hole X-ray transients