Table information for 'apertif_elais.source_catalog'

General

This table is available for ADQL queries and through the TAP endpoint.

Resource Description: Apertif is a phased-array feed system for the Westerbork Synthesis Radio Telescope (WSRT), operating at 1.4 GHz and providing forty instantaneous beams over 300 MHz of bandwidth. This data release includes the image of the ELAIS-N field observed with Apertif. The image covers 25 square degree region, has an angular resolution of 18x11 arcseconds and a median background noise of 37 μJy/beam. The corresponding source catalog, complete down to the 0.3 mJy level,includes 8526 sources. https://science.astron.nl/telescopes/wsrt-apertif/apertif-data-access/data-releases/apertif-single-fields/

For a list of all services and tables belonging to this table's resource, see Information on resource 'Apertif Elais'

Citing this table

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:apertif_elais_source_catalog,
  year=2025,
  title={Apertif Elais},
  author={Apertif Team},
  url={https://vo.astron.nl/tableinfo/apertif_elais.source_catalog},
  howpublished={{VO} resource provided by the The VO @ {ASTRON}}
}

Fields

Sorted by DB column index. [Sort alphabetically]

NameTable Head DescriptionUnitUCD
Name Source name N/A N/A meta.id;meta.main
RA RA the right ascension of the source (for the equinox of the image) deg pos.eq.ra;meta.main
E_RA RA error the error on the right ascension of the source deg pos.eq.ra;stat.error
DEC DEC the declination of the source (for the equinox of the image) deg pos.eq.dec;meta.main
E_DEC DEC error the 1-sigma error on the declination of the source deg pos.eq.dec;stat.error
Total_flux Total flux the total, integrated Stokes I flux density of the source at the reference frequency mJy N/A
E_Total_flux Total flux error the 1-sigma error on the total flux density of the source mJy N/A
Peak_flux Peak flux the peak Stokes I flux density per beam of the source mJy/beam N/A
E_Peak_flux Peak flu error the 1-sigma error on the peak flux density per beam of the source mJy/beam N/A
Isl_rms Island background RMS the average background rms value of the island mJy/beam N/A
S_Code Code A code that defines the source structure 'S' for single Gaussian, 'M' for multiple Gaussian, 'C' = a single-Gaussian source in an island with other sources N/A meta.code

Columns that are parts of indices are marked like this.

Other

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VOResource

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