The Phoenix Deep Survey: 1.4-GHz source counts

被引:114
作者
Hopkins, AM [1 ]
Mobasher, B
Cram, L
Rowan-Robinson, M
机构
[1] Univ Sydney, Sch Phys, Dept Astrophys, Sydney, NSW 2006, Australia
[2] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Astrophys Grp, London SW7 2BZ, England
关键词
surveys; galaxies : evolution; galaxies : luminosity function; mass function; radio continuum : galaxies;
D O I
10.1046/j.1365-8711.1998.01403.x
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present the first results from the Phoenix Deep Survey, a multiwavelength survey of a 2 degrees diameter region. Observations in the radio continuum at 1.4 GHz carried out with the Australia Telescope Compact Array are described. The catalogue of over 1000 radio sources compiled from these observations is analysed, and the source counts are presented. We model the observational source counts using a two-population model and published luminosity functions for these populations. Upon invoking luminosity and density evolution, we find that a luminosity evolution model best fits the radio observations, consistent with earlier work. The redshift distribution of the two galaxy populations investigated is also modelled and discussed.
引用
收藏
页码:839 / 846
页数:8
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