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Jet magnetically accelerated from disk-corona around a rotating black hole

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Abstract

A jet acceleration model for extracting energy from disk-corona surrounding a rotating black hole (BH) is proposed. In the disk-corona scenario, we obtain the ratio of the power dissipated in the corona to the total for such disk-corona system by solving the disk dynamics equations. The analytical expression of the jet power is derived based on the electronic circuit theory of the magnetosphere. It is shown that jet power increases with the increasing BH spin, and concentrates in the inner region of the disk-corona. In addition, we use a sample consisting of 37 radio loud quasars to explore their jet production mechanism, and show that our jet formation mechanism can simulate almost all sources with high power jet, which fails to be explained by the Blandford-Znajek (BZ) process.

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Authors and Affiliations

  1. Department of Astronomy, Beijing Normal University, Beijing, 100875, China

    XiaoLong Gong

  2. Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing, 100875, China

    LiXin Li

Authors
  1. XiaoLong Gong
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  2. LiXin Li
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Correspondence to XiaoLong Gong.

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Recommended by ZHU ZongHong (Associate Editor)

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Gong, X., Li, L. Jet magnetically accelerated from disk-corona around a rotating black hole. Sci. China Phys. Mech. Astron. 55, 880–887 (2012). https://doi.org/10.1007/s11433-012-4705-x

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