LoTSS-DR1 Raw Radio Catalogue Cone Searchivo://astron.nl/hetdex/lotss-dr1-raw/coneASTRONLOFAR Surveys KSP2022-08-11T12:34:10Michael Sipior

Oude Hoogeveensedijk 4, 7991PD Dwingeloo, the Netherlands

vo@astron.nlCatalogs This service queries the catalog of radio sources from the LOFAR Two-metre Sky Survey First Data Release (LoTSS-DR1). This data release contains images and catalogs that characterise the low-frequency radio emission in the region of the HETDEX Spring Field (right ascension 10h45m00s to15h30m00s and declination 45◦00′00′′ to 57◦00′00′′). A total of 325,694 radio sources are detected in a region covering 424 square degrees. The maps have a median sensitivity of 71 uJy/beam and a resolution of 6 arcsec. Optical counterparts for 71% of the radio sources have been identified and where possible photometric redshifts for these sources have been derived.https://vo.astron.nl/hetdex/lotss-dr1-raw/cone/infoRadiohetdex This service queries the catalog of radio sources from the LOFAR Two-metre Sky Survey First Data Release (LoTSS-DR1). This data release contains images and catalogs that characterise the low-frequency radio emission in the region of the HETDEX Spring Field (right ascension 10h45m00s to15h30m00s and declination 45◦00′00′′ to 57◦00′00′′). A total of 325,694 radio sources are detected in a region covering 424 square degrees. The maps have a median sensitivity of 71 uJy/beam and a resolution of 6 arcsec. Optical counterparts for 71% of the radio sources have been identified and where possible photometric redshifts for these sources have been derived.hetdex.main This service queries the catalog of radio sources from the LOFAR Two-metre Sky Survey First Data Release (LoTSS-DR1). This data release contains images and catalogs that characterise the low-frequency radio emission in the region of the HETDEX Spring Field (right ascension 10h45m00s to15h30m00s and declination 45◦00′00′′ to 57◦00′00′′). A total of 325,694 radio sources are detected in a region covering 424 square degrees. The maps have a median sensitivity of 71 uJy/beam and a resolution of 6 arcsec. Optical counterparts for 71% of the radio sources have been identified and where possible photometric redshifts for these sources have been derived.source_nameThe radio name of the source, automatically generated from RA and DEC in most casesmeta.id;meta.maincharindexedprimaryraPosition from PyBDSF or combination of PyBDSF componentsdegpos.eq.ra;meta.maindoubleindexede_raEstimated by PyBDSF. Only fitting uncertainties are includedarcsecstat.error;pos.eq.radoubledecPosition from PyBDSF or combination of PyBDSF componentsdegpos.eq.dec;meta.maindoubleindexede_decEstimated by PyBDSF. Only fitting uncertainties are includedarcsecstat.error;pos.eq.decdoublepeak_fluxThe peak Stokes I flux density per beam of the sourcemJy/beamdoublenullablee_peak_fluxThe 1-σ error on the peak flux density per beam of the sourcemJy/beamdoublenullabletotal_fluxThe total, integrated Stokes I flux density of the source at the reference frequencymJydoublenullablee_total_fluxThe 1-σ error on the total flux density of the sourcemJydoublenullablemajThe FWHM of the major axis of the source, INCLUDING convolution with the 6-arcsec LOFAR beamarcsecdoublenullablee_majThe 1-σ error on the FWHM of the major axis of the sourcearcsecdoublenullableminorThe FWHM of the minor axis of the source, INCLUDING convolution with the 6-arcsec LOFAR beamarcsecdoublenullablee_minThe 1-σ error on the FWHM of the minor axis of the sourcearcsecdoublenullabledc_majThe FWHM of the major axis of the source, after de-convolution with the 6-arcsec LOFAR beamarcsecdoublenullablee_dc_majThe 1-σ error on the FWHM of the deconvolved major axis of the sourcearcsecdoublenullabledc_minThe FWHM of the minor axis of the source, after de-convolution with the 6-arcsec LOFAR beamarcsecdoublenullablee_dc_minThe 1-σ error on the FWHM of the deconvolved minor axis of the sourcearcsecdoublenullablepaThe position angle of the major axis of the source measured east of north, INCLUDING convolution with the 6-arcsec LOFAR beamdegdoublenullablee_paThe 1-σ error on the position angle of the major axis of the sourcedegdoublenullabledc_paThe position angle of the major axis of the source measured east of north, after de-convolution with the 6-arcsec LOFAR beamdegdoublenullablee_dc_paThe 1-σ error on the position angle of the deconvolved major axis of the sourcearcsecdoublenullableisl_rmsThe average background rms value of the islandmJy/beamdoublenullables_codeA code that 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.charnullablemosaic_idThe name of the HETDEX mosaic in which the FITS image can be foundcharnullablenumber_pointingsThe number of pointings that are mosaiced at the position of the source.doublenullablenumber_maskedThe fraction of pointings in which the source is in the deconvolution mask.doublenullablemasked_fractionThe fraction of the source that is in the CLEAN mask.doublenullableartefaceWhether or not the entry is believed to be an artefact.booleannullable