论文标题
伽马射线窄线塞弗特1个星系的喷射形成机理
The jet formation mechanism of Gamma-ray Narrow-line Seyfert 1 Galaxies
论文作者
论文摘要
在冠状磁场下，我们估计了Blandford- \ Znajek（Bz）机构，Blandford- \ Payne（BP）机制和混合模型的最大射流功率。 BZ和混合模型机制的喷射功率取决于黑洞的自旋，而BP机理的喷射功率不取决于黑洞的旋转。在高黑孔自旋下，混合模型的射流功率大于BZ和BP机制的射流功率。我们发现，几乎所有γ\射线窄线seyfert 1星系（伽马 - \ nls1s）的射流功率可以通过混合模型来解释。但是，一个具有射流功率为0.1〜 \ 1的源Eddington发光度无法通过混合模型来解释。我们建议用磁化 - \驱动的流出的积聚磁盘向内拖动磁场可能会加速此伽马 - \ nls1中的喷射。
Under the coronal magnetic field, we estimate the maximal jet power of the Blandford-\Znajek (BZ) mechanism, Blandford-\Payne (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-\ray narrow line Seyfert 1 galaxies (gamma-\NLS1s) 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-\driven outflows may accelerate the jets in this gamma-\NLS1.
