A 1. 4 GHz source survey in an area without nearby rich galaxy clusters

A 1. 4 GHz source survey in an area without nearby rich galaxy clusters
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在附近没有丰富星系团的区域进行 1. 4 GHz 源调查

DOI:
10.1086/115396
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发表时间:
1990
期刊:
The Astronomical Journal
影响因子:
--
通讯作者:
E. Salpeter
E. Salpeter
中科院分区:
--
文献类型:
--
作者:
J. Condon;J. Dickey;E. Salpeter

文献摘要

被引文献

相似文献

该文件报告了1.4 GHz连续观测56个连续的VLA字段,使用D配置,在附近没有丰富的星系团(z小于0.4)的区域。354个连续源列表,通量下降到约1.5 mJy,在约12平方度的区域。在354个射电源中,只有7个与已知的z大于0.4的富星系团有关(由古恩、霍塞尔和奥克在1986年制作的表格)。源的位置进行了比较,从一个光学目录和温和的相关性的角度尺度为1 arcmin的发现,这表明一些协会的无线电源与星系团(大小为200千秒差距)在红移的顺序z = 0.1,即使有没有丰富的星系团在这个红移范围。参考文献20篇。
The paper reports on 1.4 GHz continuum observations for 56 contiguous VLA fields, using the D configuration, in a region devoid of nearby, rich galaxy clusters (at z less than 0.4). 354 continuum sources are tabulated, with fluxes down to about 1.5 mJy, in an area of about 12 sq deg. Only about seven of the 354 radio sources are associated with known rich galaxy clusters at z greater than 0.4 (tabulated by Gunn, Hoessel, and Oke, 1986). Source positions are compared with those from an optical catalog and mild correlations on angular scales of order 1 arcmin are found. This suggests some association of radio sources with galaxy groups (sizes of order 200 kpc) at redshifts of order z = 0.1, even though there are no rich galaxy clusters in this redshift range. 20 refs.