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
复制标题
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:
影响因子:
--
通讯作者:
E. Salpeter
中科院分区:
文献类型:
--
作者:
J. Condon;J. Dickey;E. Salpeter
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.