Chin. Phys. Lett.  2002, Vol. 19 Issue (2): 276-279    DOI:
Original Articles |
Effects of Magnetic Coupling on Temperature Profile of Black-Hole Accretion Disc
LEI Wei-Hua;WANG Ding-Xiong;XIAO Kan
Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
Cite this article:   
LEI Wei-Hua, WANG Ding-Xiong, XIAO Kan 2002 Chin. Phys. Lett. 19 276-279
Download: PDF(365KB)  
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract We propose a model of the magnetic coupling (MC) of a rotating black hole (BH) with the surrounding accretion disc in order to study the radial temperature profile in the inner region of the disc, in which a linear map from the angular coordinate on the BH horizon to the radial coordinate on the thin disc is given by closed magnetic field lines. The MC power and torque are derived by using a modified equivalent circuit. It is shown that the MC effects on the temperature profile are related intimately to the BH spin, resulting in the variation of the value and the position of the peak temperature. It turns out that the value range of the color temperature of the disc is extended by the MC effects.
Keywords: 97.60.Lf      98.62.Mw      98.62.Js     
Published: 01 February 2002
PACS:  97.60.Lf (Black holes)  
  98.62.Mw (Infall, accretion, and accretion disks)  
  98.62.Js (Galactic nuclei (including black holes), circumnuclear matter, and bulges)  
TRENDMD:   
URL:  
https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2002/V19/I2/0276
Service
E-mail this article
E-mail Alert
RSS
Articles by authors
LEI Wei-Hua
WANG Ding-Xiong
XIAO Kan
Related articles from Frontiers Journals
[1] ZHANG Bao-Cheng, CAI Qing-Yu, ZHAN Ming-Sheng. Entropy Conservation in the Transition of Schwarzschild-de Sitter Space to de Sitter Space through Tunneling[J]. Chin. Phys. Lett., 2012, 29(2): 276-279
[2] LIU Yan, JING Ji-Liang**. Propagation and Evolution of a Scalar Field in Einstein–Power–Maxwell Spacetime[J]. Chin. Phys. Lett., 2012, 29(1): 276-279
[3] Faiz-ur-Rahman, Salahuddin, M. Akbar** . Generalized Second Law of Thermodynamics in Wormhole Geometry with Logarithmic Correction[J]. Chin. Phys. Lett., 2011, 28(7): 276-279
[4] HE Liang, HUANG Chang-Yin, WANG Ding-Xiong** . A Constraint of Black Hole Mass and the Inner Edge Radius of Relativistic Accretion Disc[J]. Chin. Phys. Lett., 2011, 28(3): 276-279
[5] CAO Guang-Tao**, WANG Yong-Jiu . Interference Phase of Mass Neutrino in Schwarzschild de Sitter Field[J]. Chin. Phys. Lett., 2011, 28(2): 276-279
[6] LIU Tong**, XUE Li . Gravitational Instability in Neutrino Dominated Accretion Disks[J]. Chin. Phys. Lett., 2011, 28(12): 276-279
[7] GUO Guang-Hai**, DING Xia . Area Spectra of Schwarzschild-Anti de Sitter Black Holes from Highly Real Quasinormal Modes[J]. Chin. Phys. Lett., 2011, 28(10): 276-279
[8] PAN Qi-Yuan, JING Ji-Liang. Late-Time Evolution of the Phantom Scalar Perturbation in the Background of a Spherically Symmetric Static Black Hole[J]. Chin. Phys. Lett., 2010, 27(6): 276-279
[9] ZHAO Fan, HE Feng. Statistical Mechanical Entropy of a (4+n)-Dimensional Static Spherically Symmetric Black Hole[J]. Chin. Phys. Lett., 2010, 27(2): 276-279
[10] CHEN Liang, **, BAI Jin-Ming, . Is Low-Frequency-Peaked BL Lac Object OJ 287 a TeV Emitter?[J]. Chin. Phys. Lett., 2010, 27(11): 276-279
[11] WEI Ying-Chun, A. Taani**, PAN Yuan-Yue, WANG Jing, CAI Yan, LIU Gao-Chao, LUO A-Li, ZHANG Hong-Bo, ZHAO Yong-Heng . Neutron Star Motion in the Disk Galaxy[J]. Chin. Phys. Lett., 2010, 27(11): 276-279
[12] M. Akbar, Asghar Qadir. Gauss-Bonnet and Lovelock Gravities and the Generalized Second Law of Thermodynamics[J]. Chin. Phys. Lett., 2009, 26(6): 276-279
[13] JIAO Cheng-Liang, LU Ju-Fu. Slim Discs with Varying Accretion Rates[J]. Chin. Phys. Lett., 2009, 26(4): 276-279
[14] ZHANG Yu, , WANG Chun-Yan, GUI Yuan-Xing, WANG Fu-Jun, YU Fei. Dirac Quasinormal Modes of a Schwarzschild Black Hole surrounded by Free Static Spherically Symmetric Quintessence[J]. Chin. Phys. Lett., 2009, 26(3): 276-279
[15] YANG Jian, ZHAO Zheng, TIAN Gui-Hua, LIU Wen-Biao. Tortoise Coordinates and Hawking Radiation in a Dynamical Spherically Symmetric Spacetime[J]. Chin. Phys. Lett., 2009, 26(12): 276-279
Viewed
Full text


Abstract