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A Toy Model for 3:2:1 Ratio of HFQPOs in XTE J1550-564
Yong-Chun Ye * #,Chang-Yin Huang,Wei-Hua Lei,Ding-Xiong Wang
School of Physics, Huazhong University of Science and Technology
*Correspondence author
#Submitted by
Subject:
Funding: 教育部博士点基金,国家自然科学基金,973国家重点基础研究发展计划（No.10873005,200804870050,2009CB824800）
Opened online:21 September 2009
Accepted by: none
Citation: Yong-Chun Ye,Chang-Yin Huang,Wei-Hua Lei.A Toy Model for 3:2:1 Ratio of HFQPOs in XTE J1550-564[OL]. [21 September 2009] http://en.paper.edu.cn/en_releasepaper/content/35343
 
 
Based on a toy model of coexistence of the Blandford-Znajek (BZ) and magnetic coupling (MC) processes with a non-axisymmetric magnetic field, we explain a puzzling 3:2:1 ratio of the high-frequency Quasi-Periodic Oscillation (HFQPO) in XTE J1550-564. It turns out that two frequencies of the HFQPO can be fitted by two rotating magnetic hotspots arising from the MC process, and the other HFQPO frequency is related to a magnetic hotspot produced in the BZ process. Based on the block of the medium shell surrounding a black hole we discuss the astrophysical environment required by the transition between low/hard (LH) and steep power-law (SPL) states and the association of jet and HFQPOs with the LH and SPL states observed in XTE J1550-564.
Keywords:black hole accretion disc;magnetic field;X-ray Binaries: XTE J1550-564;quasi-periodic oscillations;state transition
 
 
 

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