ivo://astron.nl/apertif_dr_bootes/q/source_catalogASTRONApertif Team2024-08-01T09:31:58Michael Sipior

Oude Hoogeveensedijk 4, 7991PD Dwingeloo, the Netherlands

vo@astron.nlastronomical databasessurveyscatalogsradioApertif is a phased-array feed system for the Westerbork Synthesis Radio Telescope (WSRT), providing forty instantaneous beams over 300 MHz of bandwidth. This data release includes the catalogue and image observed by Apertif covering 26.5 square degree region in the Boötes constellation at 1.4 GHz. The image is a mosaic of 187 Apertif images from 8 different survey observations performed between April 2019 and November 2021. It has an angular resolution of 27×11.5 arcseconds and a median background noise of 40 μJy/beam. From this mosaic, 8994 sources were extracted and the catalogue is complete down to the 0.3 mJy level.2023A&A...676A..37Khttps://vo.astron.nl/tableinfo/apertif_dr_bootes.source_catalogSurvey Images and CatalogsResearchWSRTApertifRadioapertif_dr_bootesApertif is a phased-array feed system for the Westerbork Synthesis Radio Telescope (WSRT), providing forty instantaneous beams over 300 MHz of bandwidth. This data release includes the catalogue and image observed by Apertif covering 26.5 square degree region in the Boötes constellation at 1.4 GHz. The image is a mosaic of 187 Apertif images from 8 different survey observations performed between April 2019 and November 2021. It has an angular resolution of 27×11.5 arcseconds and a median background noise of 40 μJy/beam. From this mosaic, 8994 sources were extracted and the catalogue is complete down to the 0.3 mJy level.apertif_dr_bootes.source_catalogApertif is a phased-array feed system for the Westerbork Synthesis Radio Telescope (WSRT), providing forty instantaneous beams over 300 MHz of bandwidth. This data release includes the catalogue and image observed by Apertif covering 26.5 square degree region in the Boötes constellation at 1.4 GHz. The image is a mosaic of 187 Apertif images from 8 different survey observations performed between April 2019 and November 2021. It has an angular resolution of 27×11.5 arcseconds and a median background noise of 40 μJy/beam. From this mosaic, 8994 sources were extracted and the catalogue is complete down to the 0.3 mJy level.namemeta.id;meta.maincharnullablerathe right ascension of the source (for the equinox of the image)degpos.eq.ra;meta.maindoubleindexednullablee_rathe error on the right ascension of the sourcedegpos.eq.ra;stat.errordoublenullabledecthe declination of the source (for the equinox of the image)degpos.eq.dec;meta.maindoubleindexednullablee_decthe 1-sigma error on the declination of the sourcedegpos.eq.dec;stat.errordoublenullabletotal_fluxthe total, integrated Stokes I flux density of the source at the reference frequencymJydoublenullablee_total_fluxthe 1-sigma error on the total flux density of the sourcemJydoublenullablepeak_fluxthe peak Stokes I flux density per beam of the sourcemJy/beamdoublenullablee_peak_fluxthe 1-sigma error on the peak flux density per beam of the sourcemJy/beamdoublenullabledc_majthe FWHM of the deconvolved major axis of the sourcedegdoublenullablee_dc_majthe 1-sigma error on the FWHM of the deconvolved major axis of the sourcedegdoublenullabledc_minThe FWHM of the deconvolved minor axis of the sourcedegdoublenullablee_dc_minThe 1-sigma error on the FWHM of the deconvolved minor axis of the sourcedegdoublenullabledc_pathe position angle of the deconvolved major axis of the source measured east of northdegdoublenullablee_dc_pathe 1-sigma error on the position angle of the deconvolved major axis of the sourcedegdoublenullableisl_rmsthe average background rms value of the islandmJy/beamdoublenullables_codeA code that defines the source structure 'S' for single Gaussian, 'M' for multiple Gaussian, 'C' = a single-Gaussian source in an island with other sourcesmeta.codecharnullable