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3 documents, page 1 of 1

The Large Area Radio Galaxy Evolution Spectroscopic Survey (LARGESS): Survey design, data catalogue and GAMA/WiggleZ spectroscopy

Ching, John H. Y.; Sadler, Elaine M.; Croom, Scott M.; Johnston, Helen M.; Pracy, Michael B.; Couch, Warrick J.; Hopkins, A. M.; Jurek, Russell J.; Pimbblet, K. A. (2016)
Projects: ARC | Relativistic jets and radio-mode feedback in massive galaxies (DP1093086), ARC | Dissecting galaxy evolution (FT100100457)
We present the Large Area Radio Galaxy Evolution Spectroscopic Survey (LARGESS), a spectroscopic catalogue of radio sources designed to include the full range of radio AGN populations out to redshift z = 0.8. The catalogue covers roughly 800 square degrees of sky, and provides optical identifications for 19,179 radio sources from the 1.4 GHz Faint Images of the Radio Sky at Twenty-cm (FIRST) survey down to an optical magnitude limit of i_mod < 20.5 in Sloan Digital Sky Survey (SDSS) images. B...

Galaxy And Mass Assembly (GAMA): The environments of high- and low- excitation radio galaxies

Ching, J. H. Y.; Croom, S. M.; Sadler, E. M.; Robotham, A. S. G.; Brough, S.; Baldry, I. K.; Bland-Hawthorn, J.; Colless, M.; Driver, S. P.; Holwerda, B. W.; Hopkins, A. M.; Jarvis, M. J.; Johnston, H. M.; Kelvin, L. S.; Liske, J.;... (2017)
Projects: ARC | Dissecting galaxy evolution (FT100100457), ARC | Relativistic jets and radio-mode feedback in massive galaxies (DP1093086), ARC | Discovery Projects - Grant ID: DP130103198 (DP130103198)
We study the environments of low- and high- excitation radio galaxies (LERGs and HERGs respectively) in the redshift range $0.01 < z < 0.4$, using a sample of 399 radio galaxies and environmental measurements from the Galaxy And Mass Assembly (GAMA) survey. In our analysis we use the fifth nearest neighbour density ($\Sigma_{5}$) and the GAMA galaxy groups catalogue (G3Cv6) and construct control samples of galaxies matched in {\update stellar mass and colour} to the radio-detected sample. We ...

GAMA/WiggleZ: The 1.4GHz radio luminosity functions of high- and low-excitation radio galaxies and their redshift evolution to z=0.75

We present radio Active Galactic Nuclei (AGN) luminosity functions over the redshift range 0.005 < z < 0.75. The sample from which the luminosity functions are constructed is an optical spectroscopic survey of radio galaxies, identified from matched Faint Images of the Radio Sky at Twenty-cm survey (FIRST) sources and Sloan Digital Sky Survey (SDSS) images.The radio AGN are separated into Low Excitation Radio Galaxies (LERGs) and High Excitation Radio Galaxies (HERGs) using the optical spectr...