The synchrotron boiler and the spectral states of black hole binaries
arXiv:0810.4458 · doi:10.1111/j.1365-2966.2008.14142.x
Abstract
We study the effects of synchrotron self-absorption on the Comptonising electron distribution in the magnetised corona of accreting black holes. We solve the kinetic equations assuming that power is supplied to the coronal electrons through Coulomb collisions with a population of hot protons and/or through the injection of non-thermal energetic electrons by some unspecified acceleration process. We compute numerically the steady state particle distributions and escaping photon spectra. These numerical simulations confirm that synchrotron self-absorption, together with e-e Coulomb collisions, constitute an efficient thermalising mechanism for the coronal electrons. When compared to the data, they allow us to constrain the magnetic field and temperature of the hot protons in the corona independently of any dynamical accretion flow model or geometry. A preliminary comparison with the Low Hard State (LHS) spectrum of Cygnus X-1 indicates a magnetic field below equipartition with radiation, suggesting that the corona is not powered through magnetic field dissipation (as assumed in most accretion disc corona models). However, in the LHS of Cygnus X-1 and other sources, our results also point toward proton temperatures substantially lower than what predicted by the ADAF-like models. In contrast, in the High Soft State (HSS) both the proton temperature and magnetic field could be much higher. We also show that in both spectral states the magnetised corona could be powered essentially through acceleration of non-thermal particles. The main differences between the LHS and HSS coronal emission can then be understood as the consequence of the much stronger radiative cooling in the HSS caused by the soft thermal radiation coming from the geometrically thin accretion disc.
arXiv comment23 pages, 11 figures, accepted for publication in MNRAS
References in corpus (41)
- Advection-Dominated Accretion: A Self-Similar Solution
- On the Fate of Gas Accreting at a Low Rate onto a Black Hole
- 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
- Nonthermal Electrons in Radiatively Inefficient Accretion Flow Models of Sagittarius A*
- Radiation mechanisms and geometry of Cygnus X-1 in the soft state
- The Formation and Structure of a Strongly Magnetized Corona above Weakly Magnetized Accretion Disks
- Plasma Ejection from Magnetic Flares and the X-ray Spectrum of Cygnus X-1
- A Model for the X-Ray and UV Emission from Seyfert Galaxies and Galactic Black Holes
- Correlation between Compton reflection and X-ray slope in Seyferts and X-ray binaries
- Spectral Transitions in Cyg X-1 and Other Black Hole X-Ray Binaries
- The Soft Gamma-Ray Spectral Variability of Cygnus X-1
- Turbulence and Particle Heating in Advection-Dominated Accretion Flows
- Vertical Structure of Gas Pressure-Dominated Accretion Disks with Local Dissipation of Turbulence and Radiative Transport
- Understanding the long-term spectral variability of Cygnus X-1 with BATSE and ASM observations
- An Accretion-Jet Model for Black Hole Binaries: Interpreting the Spectral and Timing Features of XTE J1118+480
- X-ray spectra of accretion discs with dynamic coronae
- Modeling the Low State Spectrum of the X-Ray Nova XTE J1118+480
- Accretion disc coronae as magnetic reservoirs
- Advection Dominated Accretion Flows Around Kerr Black Holes
- Influence of Ohmic Heating on Advection-Dominated Accretion Flows
- Stochastic particle acceleration and synchrotron self--Compton radiation in TeV blazars
- Broad band spectrum of Cygnus X-1 in two spectral states with BeppoSAX
- Are Particles in Advection-Dominated Accretion Flows Thermal?
- Evolutionary constraints on the masses of the components of HDE 226868/Cyg X-1 binary system
- A Black Hole of > 6 Solar Masses in the X-ray Nova XTE J1118+480
- Thermal synchrotron radiation and its Comptonization in compact X-ray sources
- Simulating radiation and kinetic processes in relativistic plasmas
- X-ray and gamma-ray spectra and variability of the black-hole candidate GX 339-4
- Modeling the hard states of XTE J1550--564 during its 2000 outburst
- A measurement of the broad-band spectrum of XTE J1118+480 with BeppoSAX and its astrophysical implications
- Luminous hot accretion flows: the origin of X-ray emission of Seyfert galaxies and black hole binaries
- Spectral variability of GX 339-4 in a hard-to-soft state transition
- Thermalization by synchrotron absorption in compact sources: electron and photon distributions
- Effects of non-thermal tails in Maxwellian electron distributions on synchrotron and Compton processes
- Self-Consistent Fokker-Planck Treatment Of Particle Distributions in Astrophysical Plasmas
- Cyclo-synchrotron emission from magnetically dominated active regions above accretion discs
- Two-temperature coronae in active galactic nuclei
- Hard X-ray emission of the microquasar GX 339-4 in the low/hard state
- Electron Acceleration and the Production of Nonthermal Electron Distributions in Accretion Disk Coronae
- Jet disc coupling in black hole binaries
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- Search for the Highest-energy Quasiperiodic Oscillation in the Black Hole X-Ray Binary Candidate Swift J1727.8-1613
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