The Parkes Quarter-Jansky Flat-Spectrum Sample. 1. Sample selection and source identifications

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dc.contributor.authorJackson, Carole
dc.contributor.authorWall, Jasper V
dc.contributor.authorShaver, P A
dc.contributor.authorKellermann, K I
dc.contributor.authorHook, I M
dc.contributor.authorHawkins, M
dc.date.accessioned2015-12-13T22:28:48Z
dc.date.available2015-12-13T22:28:48Z
dc.date.issued2002
dc.date.updated2015-12-11T08:41:53Z
dc.description.abstractWe present a new sample of quarter-Jansky flat-spectrum radio sources selected to search for high-redshift quasars and to study the evolution of the flat-spectrum quasar population. The sample comprises 878 radio sources selected from the Parkes catalogues with spectral indices α2.7 GHz5 GHz ≥ -0.4 where Sν ∝ να. The sample covers all right ascensions and the declination range from -80 °.0 to +2 °.5, excluding low galactic latitudes (| b | < 10 °) and the Magellanic Cloud regions. We have obtained improved radio source positions, firstly to reconfirm the majority of the existing identifications, and secondly, using digitized sky-survey data and deep B, Gunn-i and Gunn-z CCD-imaging, to find optical identifications for 223 previously-unidentified sources. We present the final catalogue of 878 flat-spectrum sources: 827 are compact radio sources identified with galaxies, quasars and BL Lac objects, 38 have either extended radio structure or are identified with Galactic objects (PN, HII or non-compact radio source), 4 are obscured by Galactic stars, and 9 (1 per cent of the total sample) remain unidentified.
dc.identifier.issn0004-6361
dc.identifier.urihttp://hdl.handle.net/1885/74368
dc.publisherSpringer
dc.sourceAstronomy and Astrophysics
dc.subjectKeywords: Astrophysics; Radio astronomy; Spectrum analysis; Radio sources; Galaxies BL Lac objects: general; Catalogues; Galaxies: general; Quasars: general; Radio continuum: galaxies
dc.titleThe Parkes Quarter-Jansky Flat-Spectrum Sample. 1. Sample selection and source identifications
dc.typeJournal article
local.bibliographicCitation.lastpage113
local.bibliographicCitation.startpage97
local.contributor.affiliationJackson, Carole, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationWall, Jasper V, University of Oxford
local.contributor.affiliationShaver, P A, European Southern Observatory
local.contributor.affiliationKellermann, K I, National Radio Astronomy Observatory
local.contributor.affiliationHook, I M, University of Oxford
local.contributor.affiliationHawkins, M, Royal Observatory Edinburgh
local.contributor.authoremailrepository.admin@anu.edu.au
local.contributor.authoruidJackson, Carole, u9908169
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systems
local.identifier.ariespublicationMigratedxPub4088
local.identifier.citationvolume386
local.identifier.scopusID2-s2.0-0036531241
local.identifier.uidSubmittedByMigrated
local.type.statusPublished Version

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