论文标题
S2 Star Data排除了带有超级普兰克头发的非词性黑洞吗？
Are nonsingular black holes with super-Planckian hair ruled out by S2 star data?
论文作者
论文摘要
我们提出了一种新颖的非发挥黑洞时空，代表了Schwarzschild解决方案的强烈变形，该解决方案具有质量$ m $的额外头发$ \ ell $，这可能比Planck量表大。我们的黑洞模型呈现出一个保姆核心和$ \ MATHCAL {O}（\ Ell^2/r^2）$慢速校正对Schwarzschild解决方案。当$ 0.2 \ lyssim \ ell/gm \ sillsim \，0.3 $，我们的黑洞溶液是热力学上首选的，其特征是来自Schwarzschild案例的测试粒子轨道上的强偏差。特别是，我们发现使用$ \ ell $线性地缩放对围围层预动力角度的校正。我们使用$ \ text {sgra}^*$的S2星轨道的可用数据测试我们的模型。这些数据强烈限制了头发$ \ ell $的价值，在$ \ sim \，0.47 \，gm $上施放了上限，但不排除可能存在具有超级普兰克头发的常规黑洞。
We propose a novel nonsingular black-hole spacetime representing a strong deformation of the Schwarzschild solution with mass $M$ by an additional hair $\ell$, which may be hierarchically larger than the Planck scale. Our black-hole model presents a de Sitter core and $\mathcal{O}(\ell^2/r^2)$ slow-decaying corrections to the Schwarzschild solution. Our black-hole solutions are thermodynamically preferred when $0.2 \lesssim \ell/GM \lesssim \, 0.3$ and are characterized by strong deviations in the orbits of test particles from the Schwarzschild case. In particular, we find corrections to the perihelion precession angle scaling linearly with $\ell$. We test our model using the available data for the orbits of the S2 star around $\text{SgrA}^*$. These data strongly constrain the value of the hair $\ell$, casting an upper bound on it of $\sim \, 0.47 \, GM$, but do not rule out the possible existence of regular black holes with super-Planckian hair.
