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Date and Time of the Query: 2019-06-20 T08:42:09 PDT
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For refcode 1997MNRAS.284...85D:
Retrieve 329 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by Royal Astronomical Society. 1997MNRAS.284...85D The Parkes half-jansky flat-spectrum sample M. J. Drinkwater, R. L. Webster, P. J. Francis, J. J. Condon, S. L. Ellison, D. L. Jauncey, J. Lovell, B. A. Peterson and A. Savage Accepted 1996 August 1. Received 1996 July 31; in original form 1995 November 14 ABSTRACT We present a new sample of Parkes half-jansky flat-spectrum radio sources, having made a particular effort to find any previously unidentified sources. The sample contains 323 sources selected according to a flux limit of 0.5 Jy at 2.7 GHz, a spectral index measured between 2.7 and 5.0 GHz of {alpha}_2.7/5.0 > -0.5, where S({nu}) is proportional to {nu}^{alpha}^, Galactic latitude |b| > 20^deg^ and -45^deg^ < declination (B1950) <+10^deg^. The sample was selected from a region 3.90 steradians in area. We have obtained accurate radio positions for all the unresolved sources in this sample, and combined these with accurate optical positions from digitized photographic sky survey data to check all the optical identifications. We report new identifications based on R- and kn-band imaging and new spectroscopic measurements of many of the sources. We present a catalogue of the 323 sources, of which 321 now have identified optical counterparts and 277 have measured spectral redshifts. Key words: catalogues - BL Lacertae objects: general - galaxies: general - quasars: general - radio continuum: galaxies.
Retrieve 329 NED objects in this reference.
Please click here for ADS abstract

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