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.
Citation: 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 , ' The 6C** sample of steep-spectrum radio sources: I - Radio data, near-infrared imaging and optical spectroscopy ' Monthly Notices of the Royal Astronomical Society , vol 373 , no. 4 , pp. 1531-1562 .
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 at z > 4. The filtering criteria are a steep-spectral index and a small angular size. The final sample consists of 68 sources from a region of sky covering 0.421 sr. We present VLA radio maps, and the results of K-band imaging and optical spectroscopy.
The definitive version is available at www.blackwell-synergy.com --Copyright Blackwell Publishing DOI : 10.1111/j.1365-2966.2006.11101.x