论文标题
Minkowski物体中无线电发射和磁场的观察和模拟
Observations and Simulations of Radio Emission and Magnetic Fields in Minkowski's Object
论文作者
论文摘要
我们将来自Karl G. Jansky的新数据与以前的无线电观察结果结合在一起，以创建来自Galaxy NGC 541的无线电飞机与名为Minkowski对象（MO）的恒星形成系统之间正在进行的相互作用的更完整图片。然后，我们将这些观察结果与来自针对MO参数专门量身定制的喷气云相互作用的新的磁流失动力模拟产生的合成无线电数据进行了比较。无线电强度，偏振和光谱指数测量的组合都令人信服地支持相互作用方案，并在批量内介质的局部动态状态以及自Jet-Cloud交互开始时提供了其他约束。特别是，我们表明只有弯曲无线电喷射的模拟才能重现观测值。
We combine new data from the Karl G. Jansky Very Large Array with previous radio observations to create a more complete picture of the ongoing interactions between the radio jet from galaxy NGC 541 and the star-forming system known as Minkowski's Object (MO). We then compare those observations with synthetic radio data generated from a new set of magnetohydrodynamic simulations of a jet-cloud interaction specifically tailored to the parameters of MO. The combination of radio intensity, polarization, and spectral index measurements all convincingly support the interaction scenario and provide additional constraints on the local dynamical state of the intracluster medium and the time since the jet-cloud interaction first began. In particular, we show that only a simulation with a bent radio jet can reproduce the observations.
