候选极环镓的二维光谱：I. UGC 5600/09半导体对
2D Spectroscopy of Candidate Polar-Ring Galaxies: I. The Pair of Galaxies UGC 5600/09
摘要：
本文介绍了在6米特殊天体物理天文台望远镜上用SCORPIO多模仪器对VV 330星系对的观测结果。利用扫描Fabry Perot干涉仪，对两个星系的H-α区电离气体的大尺度速度场以及连续区和H-α区的亮度分布进行了构造。长缝光谱学是研究恒星运动学的重要手段。对所获得的数据进行分析，揭示了每一对组件中的复杂结构。在UGC 5600中已经确定了三个运动学子系统：一个恒星盘，一个相对于盘旋转约80度的内部气体环，以及一个外部气体盘。恒星和外层气体盘是不共面的。可能的情况下形成的观察到的多组分运动学星系结构被认为是，包括的情况下，大规模的速度场的气体表示的运动学模型的磁盘与翘曲。第二个星系UGC 5609的速度场更规则。对光度结构和速度场数据的联合分析表明，这可能是一个晚型螺旋星系，其形状因引力相互作用而扭曲，可能是UGC 5600。
英文摘要：
Observations of the pair of galaxies VV 330 with the SCORPIO multimode instrument on the 6-m Special Astrophysical Observatory telescope are presented. Large-scale velocity fields of the ionized gas in H-alfa and brightness distributions in continuum and H-alfa have been constructed for both galaxies with the help of a scanning Fabry Perot interferometer. Long-slit spectroscopy is used to study the stellar kinematics. Analysis of the data obtained has revealed a complex structure in each of the pair components. Three kinematic subsystems have been identified in UGC 5600: a stellar disk, an inner gas ring turned with respect to the disk through ~80degrees, and an outer gas disk. The stellar and outer gas disks are noncoplanar. Possible scenarios for the formation of the observed multicomponent kinematic galactic structure are considered, including the case where the large-scale velocity field of the gas is represented by the kinematic model of a disk with a warp. The velocity field in the second galaxy of the pair, UGC 5609, is more regular. A joint analysis of the data on the photometric structure and the velocity field has shown that this is probably a late-type spiral galaxy whose shape is distorted by the gravitational interaction, possibly, with UGC 5600.
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