6533b7d7fe1ef96bd12690bf
RESEARCH PRODUCT
A new sample of large angular size radio galaxies II. The optical data
L. LaraGabriele GiovanniniW. D. CottonJ. M. MarcaideI. MarquezTiziana VenturiL. Ferettisubject
PhysicsNRAO VLA Sky Survey3D optical data storageRadio galaxyAstrophysics (astro-ph)FOS: Physical sciencesAstronomy and AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsAstrophysicsSample (graphics)DeclinationGalaxyRedshiftSpace and Planetary ScienceAngular diameterAstrophysics::Galaxy Astrophysicsdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-09-12 |