150MHz GMRT survey in Eridanus Virtual Observatory Resource

Authors
  1. George S.J.
  2. Stevens I.R.
  3. Published by
    CDS
Abstract

We present results of a 150MHz survey of a field centred on {epsilon} Eridani, undertaken with the Giant Metrewave Radio Telescope (GMRT). The survey covers an area with a diameter of ~2{deg}, has a spatial resolution of ~30arcsec and a noise level of {sigma}=3.1mJy at the pointing centre. These observations provide a deeper and higher resolution view of the 150MHz radio sky than the 7C survey (although the 7C survey covers a much larger area). A total of 113 sources were detected, most are point-like, but 20 are extended. We present an analysis of these sources, in conjunction with the National Radio Astronomy Observatory (NRAO) Very Large Array (VLA) telescope Sky Survey (NVSS) (at 1.4GHz) and VLA Low-frequency Sky Survey (VLSS) (at 74MHz). This process allowed us to identify five Ultra-Steep Spectrum (USS) radio sources that are candidate high-redshift radio galaxies (HzRGs). In addition, we have derived the dN/dS distribution for these observations and compare our results with other low-frequency radio surveys.

Keywords
  1. radio-sources
  2. surveys
Bibliographic source Bibcode
2008MNRAS.390..741G
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/390/741
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/390/741
Document Object Identifer DOI
doi:10.26093/cds/vizier.73900741

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/390/741
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/390/741
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/390/741
IVOA Table Access TAP
https://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).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/390/741/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/390/741/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/390/741/table1?

History

2009-12-08T14:02:37Z
Resource record created
2009-12-08T14:02:37Z
Created
2024-07-07T20:17:14Z
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