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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, AWe 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 SocietyVolume
284Pagination
85-125ISSN
0035-8711Department/School
School of Natural SciencesPublisher
Royal Astronomical SocietyPlace of publication
LondonRepository Status
- Restricted