The Phoenix Deep Survey: A Deep Microjansky Radio Survey
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The study of the nature of faint radio sources is of great importance since a significant fraction of these objects is thought to be composed of actively star-forming galaxies. Due to the increased sensitivity of radio telescopes, we are now not only able to catalogue large numbers of these sources in the sub-millijansky regime, but also to start the study of the nature of increasingly fainter microjansky sources.
This paper presents a new very deep 1.4 GHz radio survey made as a part of the Phoenix Deep Survey, a project aimed to study the nature of the faintest radio sources. With a limiting sensitivity of 45 microJy, this new survey has allowed us to assemble a large number of sources with 1.4 GHz flux densities below 100 microJy. The resulting source counts and the analysis of the optical properties of the faintest radio sources are presented.
4 pages, 4 encapsulated Postscript figures, requires moriond.sty. To appear in the proc. of XIXth Moriond Astrophysics Meeting ``Building Galaxies: from the Primordial Universe to the Present'', ed F. Hammer, T. X. Thuan, V. Cayatte, B. Guiderdoni and J. Tran Thanh Van (Ed. Frontieres)
4 pages, 4 encapsulated Postscript figures, requires moriond.sty. To appear in the proc. of XIXth Moriond Astrophysics Meeting ``Building Galaxies: from the Primordial Universe to the Present'', ed F. Hammer, T. X. Thuan, V. Cayatte, B. Guiderdoni and J. Tran Thanh Van (Ed. Frontieres)