J/AN/330/223ivo://CDS.VizieR/J/AN/330/223doi:10.26093/cds/vizier.113300223CDSStanghellini C.Dallacasa D.Orienti M.2025-09-29T20:17:42Z2013-10-03T15:12:28ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frradio-galaxiesquasarsradio-astronomyWe present a sample of sources with convex radio spectra peaking at frequencies above a few GHz, known as "High Frequency Peakers" (HFPs). A "bright" sample with a flux density limit of 300mJy at 5GHz has been presented by Dallacasa et al. (2000, Cat. J/A+A/363/887). Here we present the "faint" sample with flux density between 50 and 300mJy at 5GHz, restricted to the area around the North Galactic Cap, where the FIRST catalogue is available. The candidates have been observed with the VLA at several frequencies ranging from 1.4 to 22GHz, in order to derive a simultaneous radio spectrum. The final list of confirmed HFP sources consists of 61 objects.2009AN....330..223Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AN/330/223CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/363/887 : High frequency peakers. I. The bright sample (Dallacasa+, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AN/330/223https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AN/330/223http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AN/330/223https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AN/330/223https://vizier.iucaa.in/viz-bin/votable?-source=J/AN/330/223http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AN/330/223GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AN/330/223/table2 (Faint sample. Optical info is based on the NED or is derived from the SDSS)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AN/330/223/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AN/330/223/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AN/330/223/table2?GETtext/xml+votable180.050000true114.00462547.739750.0055555555555555566/5035 5108 5159 5192 5222 5239 5244 5248 5267 5342 5432 5440 5515 5532 5547 5648 5656 5726 5746 5882 5905 5942 6234 6454 6932 7338 7433 8976 9029 9164 9275 9342 9352 9455 9705 9754 9819 9853 9860 10307 10401 10491 10624 10706 10791 10809 10829 10862 10866 10986 11016 11028 11035 11083 11306 11334 28130 28132 28494 28607 324959.276497240453405e-25 1.4577353054677623e-23https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AN/330/223?format=asciiRadiodefaultJ/AN/330/223/table2Faint sample. Optical info is based on the NED or is derived from the SDSSSEDmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (JHHMM+DDMM)meta.id;meta.maincharObs[a-i] Code for observation date and config. (1)meta.codecharOT[gqs] Optical identification: g=galaxy, q=quasar, s=starsrc.classcharmag? Magnitude in band specified in n_magmagphot.magfloatnullablen_mag[rRB] Band of magnitudeinstr.bandpasscharu_mag[?] uncertainty flag on magmeta.code.errorcharl_zLimit flag on zmeta.code.error;src.redshiftcharz? Redshiftsrc.redshiftfloatnullablef_z[p] p for photometric redshiftmeta.codecharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainl_S1.4[~] Limit flag on S1.4meta.code.errorcharS1.4Flux density at 1.4GHzmJyphot.flux.density;em.radio.750-1500MHzfloatu_S1.4[?] uncertainty flag on S1.4meta.code.errorcharl_S1.7[~] Limit flag on S1.7meta.code.errorcharS1.7Flux density at 1.7GHzmJyphot.flux.density;em.radio.1500-3000MHzfloatl_S4.5[~] Limit flag on S4.5meta.code.errorcharS4.5Flux density at 4.5GHzmJyphot.flux.density;em.radio.3-6GHzfloatS5.0Flux density at 5.0GHzmJyphot.flux.density;em.radio.3-6GHzfloatS8.1Flux density at 8.1GHzmJyphot.flux.density;em.radio.6-12GHzfloatS8.5Flux density at 8.5GHzmJyphot.flux.density;em.radio.6-12GHzfloatS15Flux density at 15GHzmJyphot.flux.density;em.radio.12-30GHzfloatS22Flux density at 22GHzmJyphot.flux.density;em.radio.12-30GHzfloatnum? Spectral peak frequencyGHzem.freqfloatnullableu_num[?] uncertainty flag on nummeta.code.errorcharSm? Spectral peak flux densitymJyphot.flux.density;em.radiointnullablenvssCross-match within 1.5" with NVSS (Condon et al., 1998, Cat. VIII/65meta.ref.urlintnullable