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The Parkes half-jansky flat-spectrum sample

journal contribution
posted on 2023-05-16, 10:38 authored by Drinkwater, MJ, Webster, RL, Francis, PJ, Condon, JJ, Ellison, SL, Jauncey, DL, James LovellJames Lovell, Peterson, BA, Savage, A
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 α2.7/5.0 > -0.5, where S(v) ∝ vα, Galactic latitude \b\ > 20° and -45°< declination (B1950) < +10°. 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. © 1997 RAS.

History

Publication title

Monthly Notices of the Royal Astronomical Society

Volume

284

Pagination

85-125

ISSN

0035-8711

Department/School

School of Natural Sciences

Publisher

Royal Astronomical Society

Place of publication

London

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the physical sciences

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