Magnetic Coupling of a Rotating Black Hole with Advection-Dominated Accretion Flows
arXiv:astro-ph/0701802 · doi:10.1016/j.newast.2007.01.004
Abstract
A model of magnetic coupling (MC) of a rotating black hole (BH) with advection- dominated accretion flow (MCADAF) is proposed. It turns out that MCADAF providers a natural explanation for the transition radius between ADAF and SSD, and could be used to interpret the highest luminosity of GX 339-4 in hard-state. A very steep emissivity index can be produced in the innermost part of the MCADAF,which is consistent with the recent XMM-Newton observations of the nearby bright Seyfert 1 galaxy MCG-6-30-15 and with two X-ray binaries (XRBs): XTE J1655-500 and GX 339-4. In addition, we estimate the BH spins in Seyfert 1 galaxy MCG-6-30-15 and in the two XRBs based on this model.
arXiv comment18 pages, 9 figures,acceptted by New Astronomy
References in corpus (24)
- Advection-Dominated Accretion: A Self-Similar Solution
- 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
- Advection-Dominated Accretion: Self-Similarity and Bipolar Outflows
- Thermal Equilibria of Accretion Disks
- Constraining Black Hole Spin Via X-ray Spectroscopy
- XMM-EPIC observation of MCG-6-30-15: Direct evidence for the extraction of energy from aspinning black hole?
- GX 339-4: the distance, state transitions, hysteresis and spectral correlations
- An extended scheme for fitting X-ray data with accretion disk spectra in the strong gravity regime
- Spectrum of Optically Thin Advection Dominated Accretion Flow around a Black Hole: Application to Sgr A*
- Is the Accretion Flow in NGC 4258 Advection-dominated?
- Observing the effects of the event horizon in black holes
- Evidence for Black Hole Spin in GX 339-4: XMM-Newton EPIC-pn and RXTE Spectroscopy of the Very High State
- Advection Dominated Accretion Flows in the Kerr Metric: I. Basic Equations
- Evolution characteristics of central black hole of magnetized accretion disc
- The Relativistic Fe Emission Line in XTE J1650-500 with BeppoSAX: Evidence for Black Hole Spin and Light Bending Effects?
- Luminous hot accretion disks
- Advection Dominated Accretion Flows in the Kerr Metric: II. Steady State Global Solutions
- Accretion Disk Torqued by a Black Hole
- Luminous hot accretion flows: thermal equilibrium curve and thermal stability
- The Blandford-Znajek mechanism and emission from isolated accreting black holes
- Extracting Energy from Accretion into Kerr Black Hole
- Observational Signatures of the Magnetic Connection between a Black Hole and a Disk
- Accretion flows: the Role of the Outer Boundary Condition