GLEAM III. South Galactic Pole Virtual Observatory Resource

Authors
  1. Franzen T.M.O.
  2. Hurley-Walker N.
  3. White S.V.
  4. Hancock P.J.
  5. Seymour N.
  6. Kapinska A.D.
  7. Staveley-Smith L.
  8. Wayth R.B.
  9. Published by
    CDS
Abstract

We present the South Galactic Pole (SGP) data release from the GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey. These data combine both years of GLEAM observations at 72-231MHz conducted with the Murchison Widefield Array (MWA) and cover an area of 5,113 deg^2^ centred on the SGP at 20h40m<RA<05h04m and -48{deg}<Dec<-2{deg}. At 216MHz, the typical rms noise is ~5mJy/beam and the angular resolution ~2 arcmin. The source catalogue contains a total of 108851 components above 5{sigma}, of which 77 per cent have measured spectral indices between 72 and 231MHz. Improvements to the data reduction in this release include the use of the GLEAM Extragalactic catalogue as a sky model to calibrate the data, a more efficient and automated algorithm to deconvolve the snapshot images, and a more accurate primary beam model to correct the flux scale. This data release enables more sensitive large-scale studies of extragalactic source populations as well as spectral variability studies on a one-year timescale.

Keywords
  1. South galactic pole
  2. Galaxies
  3. Catalogs
  4. Radio continuum emission
  5. Radio astronomy
  6. Radio sources
  7. Surveys
Bibliographic source Bibcode
2021PASA...38...14F
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/VIII/109
IVOA Identifier IVOID
ivo://CDS.VizieR/VIII/109
Document Object Identifer DOI
bibcode:2021yCat.8109....0F

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=VIII/109
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=VIII/109
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=VIII/109
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/VIII/109/gleamsgp?
https://vizier.iucaa.in/viz-bin/conesearch/VIII/109/gleamsgp?
http://vizieridia.saao.ac.za/viz-bin/conesearch/VIII/109/gleamsgp?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/VIII/109/list?
https://vizier.iucaa.in/viz-bin/conesearch/VIII/109/list?
http://vizieridia.saao.ac.za/viz-bin/conesearch/VIII/109/list?

History

2021-08-16T12:42:17Z
Resource record created
2021-08-16T12:42:17Z
Created
2022-07-08T07:30:28Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr