论文标题
M87*在有理非线性电动力学内的黑洞的阴影
The shadow of M87* black hole within rational nonlinear electrodynamics
论文作者
论文摘要
我们考虑使用Lagrangian $ {\ cal l} = - {\ cal f}/（1+2β{\ cal f}）$（$ {\ cal f} =（1/4）f_ {μν} f^{μν} f^{μ是lorentz -invariant sositive insoptions，发现非线性电动力学校正引起的有效几何形状。我们确定了常规非旋转磁性黑洞的阴影的大小，并将其与事件地平线望远镜协作成像的超质量M87*黑洞的阴影大小进行比较。假设黑洞质量具有纯电磁性，我们获得了黑洞磁电荷。所获得的阴影的大小非常接近非规范中性Schwarzschild黑洞的阴影大小。结果，我们可以将超质量M87*黑洞解释为常规（无奇异性）磁性黑洞。
We consider rational nonlinear electrodynamics with the Lagrangian ${\cal L} = -{\cal F}/(1+2β{\cal F})$ (${\cal F}=(1/4)F_{μν}F^{μν}$ is the Lorentz-invariant), proposed in [63], coupled to General Relativity. The effective geometry induced by nonlinear electrodynamics corrections are found. We determine shadow's size of regular non-rotating magnetic black holes and compare them with the shadow size of the super-massive M87* black hole imaged by the Event Horizon Telescope collaboration. Assuming that the black hole mass has a pure electromagnetic nature, we obtain the black hole magnetic charge. The size of the shadow obtained is very close to the shadow size of non-regular neutral Schwarzschild black holes. As a result, we can interpret the super-massive M87* black hole as a regular (without singularities) magnetized black hole.
