论文标题
从任意观看角度从一般的电流方法
Generalized equipartition method from an arbitrary viewing angle
论文作者
论文摘要
电平分析得出了同步体自吸收无线电源的半径和能量的估计。在这里,我们将这种方法概括为相对论的离轴观察的发射器。我们发现,Lorentz因子$γ$和视角$θ$无法独立确定,而是沿着最小能量解决方案的轨迹变性。这些溶液被分为轴上和离轴分支,前者再现了经典分析。相对论的来源可以掩饰为明显的牛顿。将这种方法应用于对几个潮汐破坏事件(TDES)的无线电观察,我们发现,在光学发现几年后观察到的2018hyz的无线电耀斑可能是由相对论的离轴射流产生的,具有$ \ sim10^{53}} \,\ rm rm erg Erg $的相对论的离轴喷气式飞机,并在围绕时间启动了。
The equipartition analysis yields estimates of the radius and energy of synchrotron self-absorbed radio sources. Here we generalize this method to relativistic off-axis viewed emitters. We find that the Lorentz factor $Γ$ and the viewing angle $θ$ cannot be determined independently but become degenerate along a trajectory of minimal energy solutions. The solutions are divided into on-axis and off-axis branches with the former reproducing the classical analysis. A relativistic source viewed off-axis can be disguised as an apparent Newtonian one. Applying this method to radio observations of several tidal disruption events (TDEs), we find that the radio flare of AT 2018hyz which was observed a few years after the optical discovery could have been produced by a relativistic off-axis jet with kinetic energy of $\sim10^{53}\,\rm erg$ that was launched around the time of discovery.