The jet formation mechanism of Gamma-ray Narrow-line Seyfert 1 Galaxies
Abstract
Under the coronal magnetic field, we estimate the maximal jet power of the Blandford- (BZ) mechanism, Blandford- (BP) mechanism, and hybrid model. The jet power of the BZ and Hybrid model mechanisms depends on the spin of a black hole, while the jet power of the BP mechanism does not depend on the spin of a black hole. At high black hole spin, the jet power of the hybrid model is greater than that of the BZ and BP mechanisms. We find that the jet power of almost all gamma- narrow line Seyfert 1 galaxies (gamma-1s) can be explained by the hybrid model. However, one source with jet power 0.1~\1 Eddington luminosity can not be explained by the hybrid model. We suggest that the magnetic field dragged inward by the accretion disk with magnetization- outflows may accelerate the jets in this gamma-1.
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