Green Bank 6-cm (GB6) Radio Source Catalog Virtual Observatory Resource

Authors
  1. Gregory, Scott, Douglas, Condon
  2. Published by
    NASA/GSFC HEASARC
Abstract
      This table contains the Green Bank 6-cm (GB6) Radio Source Catalog. The Green Bank 4.85 GHz (6-cm wavelength) survey (Condon J.J., Broderick J.J., Seielstad G.A., Douglas K., & Gregory P.C. in 1994AJ....107.1829C) was made with the NRAO seven-beam receiver on the (former) 91m telescope during 1986 November and 1987 October. The final set of sky maps covering the declination band 0 deg < Dec. < +75 deg was constructed with data from both epochs. Its noise and position errors are nearly a factor of 2^(1/2) smaller than in the epoch 1987 maps, from which the 87GB Catalog (<a href="https://cdsarc.cds.unistra.fr/ftp/cats/VIII/14">CDS Catalog <VIII/14></a>) of 54,579 sources stronger than S ~ 25mJy was extracted. Therefore, the new maps were used to make the GB6 catalog of 75,162 discrete sources with angular sizes phi <= 10.5 arcmin and flux densities S >= 18mJy. The GB6 weighted differential source counts S^(5/2)n(S) between 18 mJy and 7 Jy agree well with evolutionary models based on independent data. This table was created by the HEASARC in July 2003 based on <a href="https://cdsarc.cds.unistra.fr/ftp/cats/VIII/40">CDS Catalog <VIII/40></a>. This is a service provided by NASA HEASARC .
    
Keywords
  1. Survey Source
Bibliographic source
1996ApJS..103..427G
See also HTML
https://heasarc.gsfc.nasa.gov/W3Browse/all/gb6.html
IVOA Identifier IVOID
ivo://nasa.heasarc/gb6

Access

IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=gb6&
IVOA Table Access TAP
https://heasarc.gsfc.nasa.gov/xamin/vo/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
Web browser access HTML
https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_gb6&Action=More+Options&Action=Parameter+Search&ConeAdd=1

History

2026-07-31T00:00:00
Resource record created
2026-07-31

Contact

Name
NASA/GSFC HEASARC help desk
E-Mail
heasarc-vo at athena.gsfc.nasa.gov