Constraining Properties of GRB Central Engines with X-ray flares

Abstract

X-ray flares in gamma-ray bursts (GRBs) are believed to be generated by the late activities of central engine, and thus provide an useful tool to diagnose the properties of central objects. In this paper, we work on a GRB X-ray flare sample whose bulk Lorentz factors are constrained by two different methods and the jet opening angles are determined by the jet breaks in afterglow lightcurves. Considering a hyperaccreting stellar-mass black hole (BH) as the central engine of GRBs and the Blandford \& Znajek process (BZ) as the jet production mechanism, we constrain the parameters of central engine by using the X-ray flare data. We find that the BZ mechanism is so powerful making it possible to interpret both GRB prompt emissions and bright X-ray flares. The wind parameter ($p$) and accreted mass ($M_d$) fall into reasonable ranges. Our result is also applied to GRB 170817A. The late X-ray flare in GRB 170817A, if it is true, might not be a BH origin.

arXiv comment9 pages, 4 figures, 1 table. Accepted for publication in MNRAS

References in corpus (101)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• The Swift X-ray Telescope
• Collapsars - Gamma-Ray Bursts and Explosions in "Failed Supernovae"
• Spectra and Light Curves of Gamma-Ray Burst Afterglows
• The Physics of Gamma-Ray Bursts
• Methods and results of an automatic analysis of a complete sample of Swift-XRT observations of GRBs
• Gamma-Ray Bursts as the Death Throes of Massive Binary Stars
• Optical and Long Wavelength Afterglow from Gamma-Ray Bursts
• Gamma-Ray Bursts
• Beaming in Gamma-Ray Bursts: Evidence for a Standard Energy Reservoir
• Physical processes shaping GRB X-ray afterglow lightcurves: theoretical implications from the Swift XRT observations
• Jets in GRBs
• The Physics of Gamma-Ray Bursts and Relativistic Jets
• An online repository of Swift/XRT light curves of GRBs
• Evidence for a Canonical GRB Afterglow Light Curve in the Swift/XRT Data
• Hyper-Accreting Black Holes and Gamma-Ray Bursts
• The Dynamics and Light Curves of Beamed Gamma Ray Burst Afterglows
• Gamma-ray Burst Afterglow with Continuous Energy Injection: Signature of a Highly-Magnetized Millisecond Pulsar
• Superluminal motion of a relativistic jet in the neutron star merger GW170817
• Bright X-ray Flares in Gamma-Ray Burst Afterglows
• Three-dimensional MHD Simulations of Radiatively Inefficient Accretion Flows
• GRMHD Simulations of Magnetized Advection Dominated Accretion on a Non-Spinning Black Hole: Role of Outflows
• Signatures of magnetar central engines in short GRB lightcurves
• Super-critical Accretion Flows around Black Holes: Two-dimensional, Radiation-pressure-dominated Disks with Photon-trapping
• Accretion Models of Gamma-Ray Bursts
• Hydrodynamical Non-radiative Accretion Flows in Two-Dimensions
• X-Ray Flares from Postmerger Millisecond Pulsars
• Gamma-Ray Bursts in the Swift Era
• Gamma-Ray Bursts and Afterglows from Rotating Strange Stars and Neutron Stars
• Large scale magnetic fields and their dissipation in GRB fireballs
• Swift observations of GRB 070110: an extraordinary X-ray afterglow powered by the central engine
• The Dynamical Structure of Nonradiative Black Hole Accretion Flows
• A Comprehensive Analysis of the Swift/XRT Data: II. Diverse Physical Origins of the Shallow Decay Segment
• Numerical Simulation of Hot Accretion Flows (II): Nature, Origin, and Properties of Outflow and Their Possible Observational Applications
• Long-lag, Wide-Pulse Gamma-Ray Bursts
• Total and Jet Blandford-Znajek Power in Presence of Accretion Disk
• The Blandford-Znajek Process as a Centeral Engine for a Gamma Ray Burst
• The First Survey of X-ray Flares from Gamma Ray Bursts Observed by Swift: Temporal Properties and Morphology
• REM observations of GRB 060418 and GRB 060607A: the onset of the afterglow and the initial fireball Lorentz factor determination
• Constraining GRB Initial Lorentz Factor with the Afterglow Onset Feature and Discovery of a Tight Gamma_0-E_iso Correlation
• Magnetohydrodynamical Non-radiative Accretion Flows in Two-Dimensions
• Numerical Simulation of Hot Accretion Flows (III): Revisiting wind properties using trajectory approach
• GRB efficiency and Possible Physical Processes Shaping the Early Afterglow
• Numerical Simulation of Hot Accretion Flows (I): A Large Radial Dynamical Range and the Density Profile of Accretion Flow
• The First Survey of X-ray Flares from Gamma Ray Bursts Observed by Swift: Spectral Properties and Energetics
• A test of the millisecond magnetar central engine model of GRBs with Swift data
• A new method of determining the initial size and Lorentz factor of gamma-ray burst fireballs using a thermal emission component
• Unveiling the origin of X-ray flares in Gamma-Ray Bursts
• The Giant X-ray Flare of GRB 050502B: Evidence for Late-Time Internal Engine Activity
• Hyper-accreting black hole as GRB central engine. I: Baryon loading in GRB jets
• Neutrino-dominated accretion flows as the central engine of gamma-ray bursts
• A long-lived neutron star merger remnant in GW170817: constraints and clues from X-ray observations
• Discovery of a tight correlation for gamma ray burst afterglows with `canonical' light curves
• Two years of non-thermal emission from the binary neutron star merger GW170817: rapid fading of the jet afterglow and first constraints on the kilonova fastest ejecta
• Constraining properties of GRB magnetar central engines using the observed plateau luminosity and duration correlation
• Structure and Luminosity of Neutrino-cooled Accretion Disks
• Evolution characteristics of central black hole of magnetized accretion disc
• Neutrino-Dominated Accretion Models for Gamma-Ray Bursts: Effects of General Relativity and Neutrino Opacity
• A long-lived remnant neutron star after GW170817 inferred from its associated kilonova
• A Comprehensive Analysis of Fermi Gamma-ray Burst Data: III. Energy-Dependent T90 Distributions of GBM GRBs and Instrumental Selection Effect on Duration Classification
• Lorentz Factor-Isotropic Luminosity/Energy Correlations of GRBS and Their Interpretation
• Self-organized criticality in X-ray flares of gamma-ray burst afterglows
• Swift and XMM-Newton Observations of the Extraordinary GRB 060729: An afterglow with a more than 100 days X-ray light curve
• Optical Flashes and Very Early Afterglows in Wind Environments
• Comprehensive study of the X-ray flares from gamma-ray bursts observed by Swift
• Gamma-ray burst jet breaks revisited
• Magnetically Torqued Neutrino-Dominated Accretion Flows for Gamma-ray Bursts
• Early Afterglows of Gamma-Ray Bursts in a Stratified Medium with a Power-Law Density Distribution
• The Fate of Non-Radiative Magnetized Accretion Flows: Magnetically-Frustrated Convection
• Early Afterglows in Wind Environments Revisited
• Hyperaccreting Black Hole as Gamma-Ray Burst Central Engine. II. Temporal evolution of central engine parameters during Prompt and Afterglow Phases
• Gamma-Ray Burst long lasting X-ray flaring activity
• Temporal Profiles and Spectral Lags of XRF 060218
• Black hole Spin in Sw J1644+57 and Sw J2058+05
• Mechanism of Outflows in Accretion System: Advective Cooling Cannot Balance Viscous Heating?
• Black hole hyperaccretion inflow-outflow model. I. long and ultra-long gamma-ray bursts
• A Toy Model for Blandford-Znajek Mechanism
• Gamma-ray burst afterglow light curves from a Lorentz-boosted simulation frame and the shape of the jet break
• Signature of a New-Born Black Hole from the Collapse of a Supra-massive Millisecond Magnetar
• Analytical Solution of Magnetically Dominated Astrophysical Jets and Winds: Jet Launching, Acceleration, and Collimation
• Detection of High-Energy Gamma-Ray Emission during the X-ray flaring activity in GRB100728A
• The three-parameter correlations about optical plateaus of gamma-ray bursts
• GRB 060714: No Clear Dividing Line Between Prompt Emission and X-ray Flares
• Statistical study of gamma-ray bursts with jet break feature in multi-wavelength afterglow emissions
• Testing black hole neutrino-dominated accretion discs for long-duration gamma-ray bursts
• Are the missing X-ray breaks in Gamma-ray Burst afterglow light curves merely hidden?
• The Bright Reverse Shock Emission in the Optical Afterglows of Gamma-ray Bursts in a Stratified Medium
• Statistical Distributions of Optical Flares from Gamma-Ray Bursts
• Constraints on the Bulk Lorentz Factors of GRB X-Ray Flares
• A Toy Model for Gamma-Ray Bursts in Type Ib/C Supernovae
• Bright "Merger-nova" Emission Powered by Magnetic wind from a New-Born Black Hole
• Outflows from black hole hyperaccretion systems: short and long-short gamma-ray bursts and "quasi-supernovae"
• Swift and Fermi observations of X-ray flares: the case of Late Internal Shock
• The History of GRB Outflows: Ejection Lorentz Factor and Radiation Location of X-Ray Flares
• Central Engine of Late-Time X-ray Flares with Internal Origin
• Numerical and analytical solutions of Neutrino-Dominated Accretion Flows with a Non-Zero Torque Boundary Condition and its applications in Gamma-ray Bursts
• Hyperaccretion after the Blandford-Znajek Process: a New Model for GRBs with X-Ray Flares Observed in Early Afterglows
• What can we learn about GRB from the variability timescale related correlations?
• Diagnosing the remnants of binary neutron star merger from GW170817/GRB170817A event
• Testing Blandford-Znajek mechanism in black hole hyperaccretion flows for long-duration gamma-ray bursts
• The bulk Lorentz factor of outflow powering X-ray flare in GRB afterglow

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• Statistical analyses on the energies of X-ray plateaus and flares in gamma-ray bursts
• Standardizing the Gamma-ray burst as a standard candle and applying to the cosmological probes: constraints on the two-component dark energy model
• Constraining the circumburst medium of gamma-ray bursts with X-ray afterglows
• Comparative Statistical Analysis of Prompt and Afterglow X-Ray Flares in Gamma-Ray Bursts: Insights into Extended Central Engine Activity
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