Radio survey around North Ecliptic Pole

DOI

A 29.3deg^2 region surrounding the north ecliptic pole (NEP; R.A.=18h00m, Dec.=+66d30m) was mapped with the Very Large Array at 1.5GHz to support the deepest portion of the ROSAT all-sky soft X-ray survey. The resulting VLA-NEP survey catalog contains 2435 radio sources with flux densities in the range of 0.3-1000mJy, including over 200 fainter than 1mJy. The 28 fields of the inner 1.5deg have noise levels sigma ~=60uJy, and the 85 fields centered between 1.5deg and 3.0deg from the NEP have sigma ~=120uJy. The typical spatial resolution is 20" HPBW, and most positions are accurate to 30". We have compared the VLA-NEP catalog with four other radio catalogs made at lower resolution, as well as with the NASA Extragalactic Database and find counterparts for ~18% of the VLA-NEP objects. The normalized, differential radio source count is in agreement with the previous studies. Between 1 and 150mJy the slope of the logN-logS relation is 0.68+/-0.03. Addresses: Kollgaard R.I. McMath Chester M. Feigelson E.D. Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802 Brinkmann W. Max-Planck-Institut fur Extraterrstrische Physik, Giessenbach strasse, 85740 Garching, Germany Hertz P. E.O. Hulburt Center for Space Research, Naval Research Laboratory, Code 7621.5, Washinton, DC 20375-5352 Reich P. Wielebinski R. Max-Planck-Institut fur Radioastronomie, Auf dem Hugel 69, 53121 Bonn, Germany

Cone search capability for table J/ApJS/93/145/table2 (VLA-NEP source catalog)

Identifier
DOI http://doi.org/10.26093/cds/vizier.20930145
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJS/93/145
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/93/145
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/93/145
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJS/93/145
Provenance
Creator KOLLGAARD R.I.; BRINKMANN W.; MCMATH CHESTER M.; FEIGELSON E.D.,HERTZ P.; REICH P.; WIELEBINSKI R.
Publisher CDS
Publication Year 1997
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Natural Sciences; Physics