A new sample of large angular size radio galaxies. II. The optical data

Details A new sample of large angular size radio galaxies. II. The optical data A new sample of large angular size radio galaxies. II. The optical data

2001-09-12

arxiv.org/abs/astro-ph/0109188v1

Astronomy and Astrophysics

Astrophysics

Accepted in Astronomy & Astrophysics. Fig 1 is supplied as low resolution gif files. Contact L. Lara for better quality postsc

Scientific paper

10.1051/0004-6361:20011279

We constructed and presented in the first paper of this series a new sample of 84 large angular size radio galaxies by selecting from the NRAO VLA Sky Survey objects with angular size > 4', declination above +60 degrees and total flux density at 1.4 GHz > 100 mJy. In this paper we present optical spectra and images of those galaxies associated with the radio emission for which no redshift was known prior to our observations. Optical counterparts have been identified for all (but one) members of the sample. After our observations, a reliable spectroscopic redshift is available for 67 objects (80%) from the sample. This paper, second of a series of three, contributes to increase the number of well defined samples of radio galaxies with ample spectroscopic information.

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