FS Tau B外流系统的两历元光谱图像
Two epoch spectro-imagery of FS Tau B outflow system
摘要：
赫比格-哈罗（HH）流动表现出各种各样的形态和运动学结构，如弓形激波、马赫盘和偏转激波。自行（PM）和径向速度的调查是必不可少的，以了解这种结构的物理性质。我们研究了FS~Tau~B HH流中光谱分离结构的运动学和PM。整理这些数据可以了解这些结构的起源并解释喷流的异常行为。另一方面，在相关的反射星云的发射轮廓的研究，使我们能够考虑流出的来源，无论是从边缘和极点的观点。我们提出的观测结果与6米望远镜在特殊的天体物理观测台的俄罗斯科学院使用的SCORPIO多模减焦器与扫描法布里-珀罗干涉仪。通过对H $α$发射的FS~Tau~B区的两个观测时期（2001年和2012年），我们测量了喷流内部光谱分离结构的PM。除了FS~Tau~B系统中已知的发射结构外，我们还发现了喷流扩展部分和反喷流的新特征。此外，我们还揭示了HH~276独立外流系统中一个新的HH结，并指出了它的可能来源。在射流的终端工作面，具有不同径向速度的结构具有相同值的PM。这一结果可以解释为对弓形激波和马赫盘区的直接观察。位于震源西南方向的棒状结构表明PM为零，可以认为是偏转激波的又一个例子。对反射星云R1和R3中H $α$剖面的分析表明，该天体是唯一的，可以同时在极上和边缘上进行研究。
英文摘要：
Herbig-Haro (HH) flows exhibit a large variety of morphological and kinematical structures such as bow shocks, Mach disks, and deflection shocks. Both proper motion (PM) and radial velocity investigations are essential to understand the physical nature of such structures. We investigate the kinematics and PM of spectrally separated structures in the FS~Tau~B HH flow. Collating these data makes it possible to understand the origin of these structures and to explain the unusual behavior of the jet. On the other hand, the study of emission profiles in the associated reflection nebulae allows us to consider the source of the outflow both from edge-on and pole-on points of view. We present the observational results obtained with the 6 m telescope at the Special Astrophysical Observatory of the Russian Academy of Sciences using the SCORPIO multimode focal reducer with a scanning Fabry-Perot interferometer. Two epochs of the observations of the FS~Tau~B region in H$α$ emission (2001 and 2012) allowed us to measure the PM of the spectrally separated inner structures of the jet. In addition to already known emission structures in the FS~Tau~B system, we discover new features in the extended part of the jet and in the counter-jet. Moreover, we reveal a new HH knot in the HH~276 independent outflow system and point out its presumable source. In the terminal working surface of the jet, structures with different radial velocities have PMs of the same value. This result can be interpreted as the direct observation of bow-shock and Mach disk regions. A bar-like structure, located southwest from the source demonstrates zero PM and can be considered as one more example of deflection shock. An analysis of H$α$ profiles in the reflection nebulae R1 and R3 indicates the uniqueness of this object, which can be studied in pole-on and edge-on directions simultaneously.
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