Table information for 'lofartier1.main'

General

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

Resource Description: This service queries the catalog of radio sources from the LOFAR HBA Tier-1 preliminary data release (LoTSS-PDR). This data release contains images and catalogs that characterise the low-frequency radio emission in the region of the HETDEX Spring Field. In excess of 40,000 sources are detected in the images that cover an area of over 350 square degrees, have a resolution of 25 arcsec, and typical noise levels of less than 0.5 mJy/beam.

For a list of all services and tables belonging to this table's resource, see Information on resource 'LoTSS-PDR Source Catalogue'

Further information

Citing this table

This table has an associated publication. If you use data from it, it may be appropriate to reference either in addition to or instead of the service reference.

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

@MISC{vo:lofartier1_main,
  year=2017,
  title={{LoTSS}-{PDR} Source Catalogue},
  author={Shimwell, T.},
  url={https://vo.astron.nl/tableinfo/lofartier1.main},
  howpublished={{VO} resource provided by the The VO @ {ASTRON}}
}

Fields

Sorted by DB column index. [Sort alphabetically]

NameTable Head DescriptionUnitUCD
Source_id ID Source ID, formed as Jhhmmss+ddmmss using the IAU convention. N/A meta.id;meta.main
RA RA Source J2000 Right Ascension, in decimal degrees. deg pos.eq.ra;meta.main
E_RA error RA Error in source J2000 Right Ascension, in arcseconds This is the formal error based on the source position fit. arcsec stat.error;pos.eq.ra
E_RA_tot tot. error RA Error in source J2000 Right Ascension, in arc seconds. This includes the formal error based on the source position fit and the systematic positional error. arcsec stat.error;pos.eq.ra
DEC Dec Source J2000 Declination, in decimal degrees. deg pos.eq.dec;meta.main
E_DEC error Dec Error in source J2000 Declination, in arcseconds This is the formal error based on the source position fit. arcsec stat.error;pos.eq.dec
E_DEC_tot tot. error Dec Total error in source J2000 Declination, in arc seconds. This includes the formal error based on the source position fit and the systematic positional error. arcsec stat.error;pos.eq.dec
Peak_flux Peak flux Source peak flux density, in mJy/beam mJy/beam N/A
E_Peak_flux error Peak flux Error in the source peak flux density in mJy/beam. This is the formal error based on the source position fit. mJy/beam N/A
E_Peak_flux_tot tot. error Peak flux Total error in the source peak flux density in mJy/beam. This includes the formal error based on the source position fit and the flux. mJy/beam N/A
Total_flux Total flux Source integrated flux density, in mJy mJy N/A
E_Total_flux error Total flux Error in the source integrated flux density in mJy. This is the formal error based on the source position fit. mJy N/A
E_Total_flux_tot tot. error Total flux Total error in the source integrated flux density in Jy. This includes the formal error based on the source position fit and the flux. mJy N/A
Isl_rms RMS noise The local rms noise in mJy/beam mJy/beam N/A
S_Code Gaus A code the defines the source structure in terms of the fitted Gaussian components: ’S’ indicates an isolated source that is fit with a single Gaussian; ‘C’ represents sources that are fit by a single Gaussian but are within an island of emission that also contains other sources; and ‘M’ is used for sources with are extended and fit with multiple Gaussians. N/A N/A
Mosaic_ID Mosaic The name of the mosaic from which the the source entry was extracted. N/A N/A

Columns that are parts of indices are marked like this.

Other

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VOResource

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