论文标题
从延伸重力旋转黑洞的阴影
Shadows from spinning black holes in extended gravity
论文作者
论文摘要
当在观察天体物理学中获得了M87中心的超大黑洞的阴影图像。分辨率的改进将允许在事件地平线量表上测试重力模型。我们开发了该方法，可以考虑黑洞阴影建模中的黑洞旋转。已经证明，直径小于$ 4R_ {sw} $（$ r_ {sw} = 2m $）的黑洞的阴影不能用纯kerr-newman metric的术语表示。因此，检测这种大小的阴影将表明必须考虑进一步的扩展。这个事实可以给出有关重力理论在被考虑的量表的详细形式的新迹象。}
When the the shadow image of a supermassive black hole in the center of M87 was obtained a new era in the observational astrophysics began. The resolution improvement would allow to test extended gravity models at event horizon scales. We develop the method allowing to take into account the black hole rotation in black hole shadow modelling. It is demonstrated that the shadow of a black hole with a diameter smaller than $4R_{Sw}$ ($R_{Sw} = 2M$) cannot be represented in the terms of pure Kerr-Newman metric. Therefore, the detection of a shadow of such size would indicate that further expansions must be taken into account. This fact could give new indications on the detailed form of the theory of gravity at the considered scales.}
