论文标题
S-Star的轨道运动在银河中心的轨道运动中的相对论效应
Relativistic effects in orbital motion of the S-stars at the Galactic Center
论文作者
论文摘要
银河中心星团被称为S-Star，是相对论现象观察的完美来源。恒星位于相对论紧凑型物体sgr a*的强场上，并且在其轨道的折室中以很高的速度移动。在这项工作中，我们通过使用常规相对论（GR）和Newtonian后（PN）的正式形式来考虑几个S-Star的运动。 PPN参数$β$和$γ$使用S-Stars数据限制。 S-Star的运动状况已确认重力能量量张量的$ T_G^{00} $分量的正值。
The Galactic Center star cluster, known as S-stars, is a perfect source of relativistic phenomena observations. The stars are located in the strong field of relativistic compact object Sgr A* and are moving with very high velocities at pericenters of their orbits. In this work we consider motion of several S-stars by using the Parameterized Post-Newtonian (PPN) formalism of General Relativity (GR) and Post-Newtonian (PN) equations of motion of the Feynman's quantum-field gravity theory, where the positive energy density of the gravity field can be measured via the relativistic pericenter shift. The PPN parameters $β$ and $γ$ are constrained using the S-stars data. The positive value of the $T_g^{00}$ component of the gravity energy-momentum tensor is confirmed for condition of S-stars motion.
