Browsing Research publications by Author "Cruz, M.J."
Now showing items 1-4 of 4
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The 6** sample and the highest redshift radio galaxies
Cruz, M.J.; Jarvis, M.J.; Blundell, K.M.; Rawlings, S. (World Scientific Publishing, 2004)We present a new radio sample, 6C** designed to find radio galaxies at z > 4 and discuss some of its near-infrared imaging follow-up results. -
The 6C** sample of steep-spectrum radio sources: I - Radio data, near-infrared imaging and optical spectroscopy
Cruz, M.J.; Jarvis, M.J.; Blundell, K.M.; Rawlings, S.; Croft, S.; Kloeckner, H-R.; McLure, R.J.; Simpson, C.; Targett, T.A.; Willott, C.J. (2006)We present basic observational data on the 6C** sample. This is a new sample of radio sources drawn from the 151MHz 6C survey, which was filtered with radio criteria chosen to optimize the chances of finding radio galaxies ... -
The 6C** sample of steep-spectrum radio sources: II - Redshift distribution and the space density of high-redshift radio galaxies
Cruz, M.J.; Jarvis, M.J.; Rawlings, S.; Blundell, K.M. (2007)We use the 6C** sample to investigate the co-moving space density of powerful, steep- spectrum radio sources. This sample, consisting of 68 objects, has virtually complete K-band photometry and spectroscopic redshifts for ... -
Near-infrared K-band imaging of a sample of ultra-steep-spectrum radio sources selected at 74 MHz
Jarvis, M.J.; Cruz, M.J.; Cohen, A.S.; Rottgering, H.J.A.; Kassim, N.E. (2004)