FIRST数据库中群的形态学注释
Morphological Annotations for Groups in the FIRST Database
摘要：
本文研究了FIRST（20厘米射电天空的微弱图像）巡天和星表中选定的几组源的形态。FIRST目录（2003年4月发布，811117条目）中的源根据接近标准被分为单，双，三重和高计数成员组。对7106个具有4个或更多组件的组单独检查弯曲类型，包括但不限于广角尾（WAT）和窄角尾（NAT）类型。在这次检查的过程中，环，双双（DD），X形，混合形态（HYMOR），巨型射电源（GRS），和这里描述的W形和三轴形态系统也被确定。为方便读者，为不同类型编制了单独的表格。我们发现了一些奇怪的现象：对于16，950个三组元星群和74，788个二组元星群，我们给出了用模式识别技术确定的弯曲分类的概率估计星表。
英文摘要：
The morphology of selected groups of sources in the FIRST (Faint Images of the Radio Sky at Twenty Centimeters) survey and catalog is examined. Sources in the FIRST catalog (April 2003 release, 811117 entries) were sorted into singles, doubles, triples and groups of higher-count membership based on a proximity criteria. The 7106 groups with four or more components were examined individually for bent types including, but not limited to, wide-angle tail (WAT) and narrow-angle tail (NAT) types. In the process of this examination, ring, double-double (DD), X-shaped, hybrid morphology (HYMOR), giant radio sources (GRS), and the herein described W-shaped and tri-axial morphology systems were also identified. For the convenience of the reader separate tables for distinctive types were generated. A few curiosities were found. For the 16,950 three-component groups and 74,788 two-component groups, catalogs with probability estimates for bent classification, as determined by pattern recognition techniques, are presented.
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