A new sample of large angular size radio galaxies. I. The radio data
A new sample of large angular size radio galaxies. I. The radio data
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大角射电星系的新样本。
DOI：
10.1051/0004-6361:20010254
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
T. Venturi
中科院分区：
文献类型：
--
作者：
L. Lara;W. D. Cotton;L. Feretti;G. Giovannini;J. Marcaide;I. Márquez;T. Venturi
我们展示了从NRAO VLA巡天中选出的84个大角尺寸射电星系的新样本。选择了偏角大于+60度、1.4 GHz总磁通密度大于100 mJy、角尺寸大于4 arcmin的射电源，并在1.4 GHz和4.9 GHz的VLA上进行了观测。射电观测试图确认大角源，并隔离核心发射进行光学识别。在本文（三篇系列文章中的第一篇）中，我们从样本中呈现了79个来源的无线电地图，并讨论了最终样本中选择标准的影响。37个射电星系属于巨星，其中22个是本文首次报道的。
We present a new sample of 84 large angular size radio galaxies selected from the NRAO VLA Sky Survey. Radio sources with declination above +60 degrees, total flux density greater than 100 mJy at 1.4 GHz and angular size larger than 4 arcmin have been selected and observed with the VLA at 1.4 and 4.9 GHz. The radio observations attempt to confirm the large angular size sources and to isolate the core emission for optical identification. In this paper, the first of a series of three, we present radio maps of 79 sources from the sample and discuss the effects of the selection criteria in the final sample. 37 radio galaxies belong to the class of giants, of which 22 are reported in this paper for the first time.