the black hole jet system and the coupling of accretion

Title: the black hole jet system and the coupling of accretion Author: Li Yang Degree-granting units: Huazhong University of Science and Technology Keywords: black hole;; accretion disk;; jet;; large-scale magnetic field;; black hole binaries;; active galactic nuclei Abstract:
Observation that many systems have neodymium magnets accretion jets celestial phenomenon. Generally agreed that the black hole accretion and jet into the agreement, X-ray binaries and
AGN observations for each band, optical variable analysis, theoretical models and numerical simulations show that the jet has a coupling relationship with the accretion
.
Accretion process is recognized as a major energy-energy mechanism celestial system, so far has been the emergence of a number of different black holes suck
Plot disk model. Based on the radiation efficiency accretion flow can be divided into two categories: thin disk and thick disk (such as diameter shift led accretion flow, referred to as
ADAF). Thin accretion disk with the highest efficiency of energy release, can be used to explain the high luminosity of the X-ray binaries and active galactic nuclei. ADAF can not
Effective viscosity of heat radiation, its luminosity is very low, while the disk temperature is high, can explain the low luminosity of the X-ray binaries and active galactic nuclei with low
Luminosity and the non-thermal spectrum. This article focuses on the general theory of relativity under the standard thin disk and ADAF disk is described in detail.
Then,
This paper describes large-scale magnetic field driven jet of the BP mechanism, focused on the jet launching process and the magnetic centrifugal acceleration process, according to the
MHD outflow of material equations derived from the outflow of angular momentum conservation and energy conservation equations. One process-driven spray BP
MHD flow is (MHD) model includes http://www.chinamagnets.biz/Neodymium/Ball-Neodymium-Magnets.php
 both the electromagnetic extraction of energy can also contain part of the material energy. Field extraction
As a carrier other than the flows of energy in the accretion disk and the area between the Alfven surface continue to accelerate, to carry the electromagnetic energy into the material flow gradually
Kinetic energy. Subsequently, the paper briefly describes several other large-scale magnetic field can provide the mechanism, including the BZ mechanism, DL and MC machine mechanism
System.
In the third chapter, we propose a standard thin disk and BZ, BP process with a simple model, taking into account the result of the BP process
Material jet and the interaction between the accretion disk, thin disk by solving the mass, angular momentum and energy conservation equation, the disk luminosity and spray
Stream power of expression. Discovery process because the presence of BP, disk radiation flux and the disk luminosity will be reduced accordingly; limited by disk stability,
In most cases, BP power is not much smaller than the BZ power, the total jet power and disk luminosity in the same order of magnitude, which Blazars
Objects of the jet power and accretion (hot) line luminosity correlation, fitting the text of 11 flat-spectrum radio sources (referred to as FSRQs) and 17 steep spectrum
Radio sources (referred to SSRQs) the broad emission line luminosity and jet power.
Chapter IV of this article discussed ADAF with a simple process with BP
Model, by solving the kinetic equation, the disk luminosity and jet power of expression, we found that BP process and the role of shifting path, disk
Brightness becomes very low, there will be jet dominated state. Also found that the accretion rate in Eddington accretion rate of unit and shift parameters between the diameter
Anti-related, which can be used to explain the 15 degree matte spray AGN power and heat flow can be positive correlation between luminosity and its
2-10keV X-ray luminosity and the jet power were fitted. Moreover, the accretion rate - the number of black hole mass on radio shows back on the plane
Electric galaxy FR Ⅰ / Ⅱ two points Ledlow-Owen relation, that FR Ⅰ / Ⅱ two points depends on the accretion rate, and the black hole mass is almost
Irrelevant, and boundaries of the accretion rate is lower than the critical accretion rate of ADAF, indicating that the FR Ⅰ in the ADAF accretion mode.
Chapter V of the black hole system
Systems and large scale magnetic field was a brief discussion of the origin of the problem. In the black hole equatorial plane at the most stable orbits within the current loop will produce even a single
Then black holes and accretion disks (referred to MCHD), suction area and the accretion disk (the MCPD) of the two closed magnetic field configuration. As MCPD presence
Energy and angular momentum transfer problem becomes more complex, the corresponding accretion disk partition has also been more detailed. In addition, the calculation of the two magnetic
Contact within the area of ​​the accretion disk radiation flux, indicating that the accretion disk with the suction area of ​​the magnetic contact is very important, especially in the black hole rotation
Relatively small case can not be ignored.
Finally, this article briefly describes the future work of the thinking and outlook. Degree Year: 2009