LoTSS-DR1 Cone Searchivo://astron.nl/hetdex/lotss-dr1/coneASTRONLOFAR Surveys KSP2026-01-30T11:01:18Michael 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) that have been cross-matched with an optical or infrared counterpart. 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/cone/infohttps://vo.astron.nl/hetdex/lotss-dr1/cone/scs.xml?GETapplication/x-votable+xmlRARight Ascension (ICRS decimal)degpos.eq.rarealDECDeclination (ICRS decimal)degpos.eq.decrealSRSearch radiusdegrealRESPONSEFORMATFile format requested for output.meta.code.mimecharMAXRECMaximum number of records returned. Pass 0 to retrieve service parameters.integerVERBExhaustiveness of column selection. VERB=1 only returns the most important columns, VERB=2 selects the columns deemed useful to the average user, VERB=3 returns a table with all available columns.integer180100000true150.045.00.001https://vo.astron.nl/hetdex/lotss-dr1/cone/availabilityhttps://vo.astron.nl/hetdex/lotss-dr1/cone/capabilitieshttps://vo.astron.nl/hetdex/lotss-dr1/cone/tableMetadataRadiohetdex This service queries the catalog of radio sources from the LOFAR Two-metre Sky Survey First Data Release (LoTSS-DR1) that have been cross-matched with an optical or infrared counterpart. 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_merged This service queries the catalog of radio sources from the LOFAR Two-metre Sky Survey First Data Release (LoTSS-DR1) that have been cross-matched with an optical or infrared counterpart. 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 on the total flux density of the sourcemJydoublenullablemajorThe 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 sourcedegdoublenullableisl_rmsThe average background rms value of the islandmJy/beamdoublenullables_codeA 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.charnullablemosaic_idThe name of the HETDEX mosaic in which the FITS image can be foundcharnullablemasked_fractionThe fraction of the source that is in the CLEAN maskdoublenullableid_flagFlag indicating the origin of the optical identification. 0 - no ID possible (too large or otherwise difficult) 1 - identification (or alck thereof) from maximum likelihood analysis 2 - match to a bright galaxy (either 2MASX or SDSS) 3? - association and identification (or lack therof) from LGZ, second digit is further flag 31 - output from LGZ 32 - output from LGZ (too-zoomed-in) 4? - association and identification (or lack therof) through deblend workflow 41 - deblend following flowchart classification of m sources 42 - deblend following LGintnullableid_namePanSTARRs, AllWISE, 2MASX or SDSS name of optical identificationmeta.idcharnullableid_raRight ascension of optical identificationdegpos.eq.radoublenullableid_decDeclination of optical identificationdegpos.eq.decdoublenullableml_lrLikelihood ratio from maximum likelihood analysisdoublenullablelgz_sizeLength of the largest diameter of the convex hull around the set of component elliptical Gaussiansarcsecdoublenullablelgz_widthTwice the maximum perpendicular distance of points on the convex hull to the largest diameter linearcsecdoublenullablelgz_paThe position angle on the sky, measured east of north, of that largest diameterdegdoublenullablelgz_assocNumber of sources in the LGZ associationdoublenullablelgz_assoc_qualLGZ association quality flagdoublenullablelgz_id_qualLGZ identification quality flagdoublenullabledeblended_fromName of PyBDSF multiple Gaussian component source from which this source was deblendedcharnullableallwiseName of the source in the AllWISE cataloguemeta.idcharnullableobjidThe PanSTARRs object IDmeta.idcharnullablegfapfluxPanSTARRs g-band forced aperture photometry fluxuJydoublenullablegfapfluxerrPanSTARRs g-band forced aperture photometry flux erroruJydoublenullablegfapmagPanSTARRs g-band forced aperture photometry magnitudemagdoublenullablegfapmagerrPanSTARRs g-band forced aperture photometry magnitude errormagdoublenullablerfapfluxPanSTARRs r-band forced aperture photometry fluxuJydoublenullablerfapfluxerrPanSTARRs r-band forced aperture photometry flux erroruJydoublenullablerfapmagPanSTARRs r-band forced aperture photometry magnitudemagdoublenullablerfapmagerrPanSTARRs r-band forced aperture photometry magnitude errormagdoublenullableifapfluxPanSTARRs i-band forced aperture photometry fluxuJydoublenullableifapfluxerrPanSTARRs i-band forced aperture photometry flux erroruJydoublenullableifapmagPanSTARRs i-band forced aperture photometry magnitudemagdoublenullableifapmagerrPanSTARRs i-band forced aperture photometry magnitude errormagdoublenullablezfapfluxPanSTARRs z-band forced aperture photometry fluxuJydoublenullablezfapfluxerrPanSTARRs z-band forced aperture photometry flux erroruJydoublenullablezfapmagPanSTARRs z-band forced aperture photometry magnitudemagdoublenullablezfapmagerrPanSTARRs z-band forced aperture photometry magnitude errormagdoublenullableyfapfluxPanSTARRs y-band forced aperture photometry fluxuJydoublenullableyfapfluxerrPanSTARRs y-band forced aperture photometry flux erroruJydoublenullableyfapmagPanSTARRs y-band forced aperture photometry magnitudemagdoublenullableyfapmagerrPanSTARRs y-band forced aperture photometry magnitude errormagdoublenullablegfkronfluxPanSTARRs g-band forced photometry Kron fluxuJydoublenullablegfkronfluxerrPanSTARRs g-band forced photometry Kron flux erroruJydoublenullablerfkronfluxPanSTARRs r-band forced photometry Kron fluxuJydoublenullablerfkronfluxerrPanSTARRs r-band forced photometry Kron flux erroruJydoublenullableifkronfluxPanSTARRs i-band forced photometry Kron fluxuJydoublenullableifkronfluxerrPanSTARRs i-band forced photometry Kron flux erroruJydoublenullablezfkronfluxPanSTARRs z-band forced photometry Kron fluxuJydoublenullablezfkronfluxerrPanSTARRs z-band forced photometry Kron flux erroruJydoublenullableyfkronfluxPanSTARRs y-band forced photometry Kron fluxuJydoublenullableyfkronfluxerrPanSTARRs y-band forced photometry Kron flux erroruJydoublenullablew1fluxAllWISE W1 profile-fit photometry fluxuJydoublenullablew1fluxerrAllWISE W1 profile-fit photometry flux erroruJydoublenullablew1magAllWISE W1 profile-fit photometry magnitudemagdoublenullablew1magerrAllWISE W1 profile-fit photometry magnitude errormagdoublenullablew2fluxAllWISE W1 profile-fit photometry fluxuJydoublenullablew2fluxerrAllWISE W1 profile-fit photometry flux erroruJydoublenullablew2magAllWISE W1 profile-fit photometry magnitudemagdoublenullablew2magerrAllWISE W1 profile-fit photometry magnitude errormagdoublenullablew3fluxAllWISE W1 profile-fit photometry fluxuJydoublenullablew3fluxerrAllWISE W1 profile-fit photometry flux erroruJydoublenullablew3magAllWISE W1 profile-fit photometry magnitudemagdoublenullablew3magerrAllWISE W1 profile-fit photometry magnitude errormagdoublenullablew4fluxAllWISE W1 profile-fit photometry fluxuJydoublenullablew4fluxerrAllWISE W1 profile-fit photometry flux erroruJydoublenullablew4magAllWISE W1 profile-fit photometry magnitudemagdoublenullablew4magerrAllWISE W1 profile-fit photometry magnitude errormagdoublenullablez_bestBest available redshift estimatedoublenullablez_best_sourceSource of z_best, 0 = photometric, 1 = spectroscopicdoublenullablez_specLiterature Spectroscopic Redshiftdoublenullablez_spec_sourceSource of z_spec, 1 = SDSS, 2 = DEEP 2/3, 4 = 3D-HST, 8 = Steidel et al. (2003), 16 = AEGIS-X, 32 = Huang et al. (2009)doublenullablez1_medianMedian of the primary redshift peak above 80% HPD CIdoublenullablez1_minLower bound of the primary 80% HPD CI peakdoublenullablez1_maxUpper bound of the primary 80% HPD CI peakdoublenullablez1_areaIntegrated area of the primary 80% HPD CI peakdoublenullablez2_medianMedian of the secondary redshift peak (if present) above 80% HPD CIdoublenullablez2_minLower bound of the secondary 80% HPD CI peakdoublenullablez2_maxUpper bound of the secondary 80% HPD CI peakdoublenullablez2_areaIntegrated area of the secondary 80% HPD CI peakdoublenullablespecagnFlag indicating spectroscopically identified AGNcharnullablemqcagnFlag indicating source is included in Million Quasar Catalog compilationcharnullablexrayclass2RXS or XMMSL2 X-ray source class: 1=AGN, 2=Galaxy/Star (based on criteria in Salvato+2017)doublenullable_2rxs_idID in 2RXS catalog (if available)charnullablexmmsl2_idID in XMMSL2 catalogcharnullableirclassBit-flag indicating WISE AGN Class based on Assef+2012 selection criteria. 1 - 90% Completeness criteria, 2 - 75% Completeness criteria, 4 - 75% Reliability criteria, 8 - 90% Reliability criteriashortnullableebvE(B-V) galactic extinction for the source based on its position and Schlegel, Finkbeiner and Davis (1998) extinction maps - http://argonaut.skymaps.info. Fluxes and magnitudes in the catalog have already been corrected based on this value.doublenullablepanstarrs_missingBoolean flag indicating source has no PS1 FAp available (and hence may be missing ID/photo-z)shortnullableu_restEstimated rest frame u-band magnitude (for z_best)magdoublenullableg_restEstimated rest frame g-band magnitude (for z_best)magdoublenullabler_restEstimated rest frame r-band magnitude (for z_best)magdoublenullablei_restEstimated rest frame i-band magnitude (for z_best)magdoublenullablez_restEstimated rest frame z-band magnitude (for z_best)magdoublenullableu__restEstimated rest frame U-band magnitude (for z_best)magdoublenullableb_restEstimated rest frame B-band magnitude (for z_best)magdoublenullablev_restEstimated rest frame V-band magnitude (for z_best)magdoublenullablei__restEstimated rest frame I-band magnitude (for z_best)magdoublenullablej_restEstimated rest frame J-band magnitude (for z_best)magdoublenullableks_restEstimated rest frame Ks-band magnitude (for z_best)magdoublenullablew1_restEstimated rest frame w1-band magnitude (for z_best)magdoublenullablew2_restEstimated rest frame w2-band magnitude (for z_best)magdoublenullablew3_restEstimated rest frame w3-band magnitude (for z_best)magdoublenullable