论文标题
带有薄积分磁盘及其极化信息的Bonnor Black Dihole的图像
Image of Bonnor black dihole with a thin accretion disk and its polarization information
论文作者
论文摘要
我们已经研究了邦诺黑二霍尔的图像，并被薄的吸积盘围绕，其中电磁发射被认为分别由黑色体辐射和同步辐射主导。我们的结果表明，在两个辐射模型中，邦诺黑二霍尔图像的强度随磁参数和倾斜角而增加。同步子辐射模型中Bonnor Black Dihole的图像比黑体辐射模型的较大数量级要明亮，但前者的强度随径向坐标的降低而降低。特别是，对于同步辐射模型，次级图像的强度比某些倾斜角度的直接图像强度强。我们还介绍了由同步辐射引起的Bonnor Black Dihole图像的偏振模式，该图像急剧取决于磁参数和倾斜角。最后，我们在Bonnor Black Dihole和M87*的极化图像之间进行了比较。我们的结果进一步证实了黑洞的图像取决于黑洞的性质本身，黑洞周围的物质和相应的辐射发生在积聚磁盘中。
We have studied the image of Bonnor black dihole surrounded by a thin accretion disk where the electromagnetic emission is assumed to be dominated respectively by black body radiation and synchrotron radiation. Our results show that the intensity of Bonnor black dihole image increases with the magnetic parameter and the inclination angle in both radiation models. The image of Bonnor black dihole in the synchrotron radiation model is one order of magnitude brighter than that in the black body radiation model, but its intensity in the former decreases more rapidly with the radial coordinate. Especially, for the synchrotron radiation model, the intensity of the secondary image is stronger than that of the direct image at certain an inclination angle. We also present the polarization patterns for the images of Bonnor black dihole arising from the synchrotron radiation, which depend sharply on the magnetic parameter and inclination angle. Finally, we make a comparison between the polarimetric images of Bonnor black dihole and M87*. Our result further confirms that the image of black hole depends on the black hole's properties itself, the matter around black hole and the corresponding radiation occurred in the accretion disk.
