Physics
Scientific paper
Oct 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atnf.prop.1817g&link_type=abstract
ATNF proposal C1960, Semester: October, 2008
Physics
Extragalactic, Atca
Scientific paper
The proposal is to examine two major AGN aspects: (1) detailed testing and analysis of the FRI-galaxy space density evolution, (2) to study the polarization properties of AGN cores as a function of flux and redshift and (3) a precise history of cosmic downsizing ('differential evolution') in radio AGN to examine the importance of FRI versus FRII sources in the AGN feedback process now appearing to govern galaxy formation. The investigation is based on the CoNFIG FRI sub-samples (obtained from the 1.4-GHz NVSS in regions of FIRST) and the CENSORS sample (obtained from the NVSS and the deep EIS optical survey in a small region of southern sky). From these we have a total of 206 extragalactic sources for which we desire unambiguous morphologies and FRI/FRII classification in particular. Of the 206 sources, we request ATCA 6km array observations at 3 cm for 40 sources which, from our previous observations and analysis, remain ambiguous in classification. This sample can at last define the detailed cosmic evolution of FRI radio sources together with the 'transition region' to FRII sources.
Best Philip
Dunlop James
Feain Ilana
Gendre Melanie
Grant Julie
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