期刊
ASTRONOMICAL JOURNAL
卷 131, 期 1, 页码 100-113出版社
IOP PUBLISHING LTD
DOI: 10.1086/498677
关键词
galaxies : active; radio continuum : galaxies; surveys
We have defined a complete sample of 228 southern radio sources at 408 MHz with integrated flux densities S-408 > 4.0 Jy, Galactic latitude vertical bar b vertical bar > 10 degrees, and declination -85 degrees < delta < -30 degrees. The main finding survey used was the Molonglo Reference Catalogue. We describe in detail how the Molonglo Southern 4 Jy sample (MS4) was assembled and its completeness assessed. Sources in the sample were imaged at 843 MHz with the Molonglo Observatory Synthesis Telescope to obtain positions accurate to about 1'', as well as flux densities and angular sizes; follow-up radio and optical observations are presented in Paper II. Radio spectra for the MS4 have been compiled from the literature and used to estimate flux densities at 178 MHz. The strong-source subset of MS4, with S-178 > 10.9 Jy (SMS4), provides a southern sample closely equivalent to the well-studied northern 3CRR sample. Comparison of SMS4 with 3CRR shows a reassuring similarity in source density and median flux density between the two samples.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据