Faint FIRST variable radio sources

A sample of 123 radio sources that exhibit significant variations at 1.4GHz on a 7 year baseline has been created using FIRST VLA B-configuration data from 1995 and 2002 on a...我们基于1995年与2002年获取的FIRST巡天（Faint Images of the Radio Sky at Twenty-Centimeters）甚大阵（Very Large Array，VLA）B构型数据，构建了包含123个射电源的样本；这些射电源在7年时间基线尺度下，于1.4吉赫兹频段呈现出显著的辐射变化。