A model for 3:2 HFQPO pairs in black hole binaries based on cosmic battery

作者：Huang, Chang-Yin; Ye, Yong-Chun; Wang, Ding-Xiong^*; Li, Yang

来源：Monthly Notices of the Royal Astronomical Society, 2016, 457(4): 3859-3866.

DOI：10.1093/mnras/stw226

• accretion, accretion discs
• black hole physics
• magnetic fields
• stars: individual: GRO J1655-40
• stars: individual: GRS 1915+105
• stars: individual: H1743-322
• stars: individual: XTE J1550-564
• X-rays: binaries

A model for 3: 2 high-frequency quasi-periodic oscillations (HFQPOs) with 3: 2 pairs observed in four black hole X-ray binaries (BHXBs) is proposed by invoking the epicyclic resonances with the magnetic connection (MC) between a spinning black hole (BH) with a relativistic accretion disc. It turns out that the MC can be worked out due to Poynting-Robertson cosmic battery, and the 3: 2 HFQPO pairs associated with the steep power-law states can be fitted in this model. Furthermore, the severe damping problem in the epicyclic resonance model can be overcome by transferring energy from the BH to the inner disc via the MC process for emitting X-rays with sufficient amplitude and coherence to produce the HFQPOs. In addition, we discuss the important role of the magnetic field in state transition of BHXBs.

• 出版日期2016-4-21
• 单位华中科技大学; 长江大学