组合的NVSS-FIRST半乳糖（CoNFIG）样品- I.样本定义、分类和演变
The Combined NVSS-FIRST Galaxies (CoNFIG) Sample - I. Sample Definition, Classification and Evolution
摘要：
CoNFIG（组合NVSS-FIRST Galerkin）样本是1.4 GHz的274个明亮射电源的新样本。它的定义是从NRAO-VLA巡天（NVSS）中选取所有S_1.4GHz > 1.3Jy的源，在20厘米射电天空暗像（FIRST）巡天的北场进行。新的无线电观测获得的VLA的31个来源。该样品具有完整的FRI/FRII形态鉴定;光学鉴定和红移分别为80%和89%的样品，平均红移约为0.71。本次调查的目标之一是得到更好的定义的光度分布和FRI/FRII源的源计数分别，以确定每种类型的源的光度函数的演变。我们提出了一个初步的分析，表明这些数据是一个重要的一步，对检查这些对象的各种进化方案，并确认或纠正双重人口的无线电活动星系核的统一计划。提高我们对射电星系演化的理解将使我们更好地了解活动星系核反馈在星系形成中的作用。
英文摘要：
The CoNFIG (Combined NVSS-FIRST Galaxies) sample is a new sample of 274 bright radio sources at 1.4 GHz. It was defined by selecting all sources with S_1.4GHz > 1.3 Jy from the NRAO-VLA Sky Survey (NVSS) in the North field of the Faint Images of the Radio Sky at Twenty-cm (FIRST) survey. New radio observations obtained with the VLA for 31 of the sources are presented. The sample has complete FRI/FRII morphology identification; optical identifications and redshifts are available for 80% and 89% of the sample respectively, yielding a mean redshift of ~0.71. One of the goals of this survey is to get better definitions of luminosity distributions and source counts of FRI/FRII sources separately, in order to determine the evolution of the luminosity function for each type of source. We present a preliminary analysis, showing that these data are an important step towards examining various evolutionary schemes for these objects and to confirm or correct the dual population unified scheme for radio AGN. Improving our understanding of radio galaxy evolution will give better insight into the role of AGN feedback in galaxy formation.
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