J/other/AstBu/74ivo://CDS.VizieR/J/other/AstBu/74.348doi:10.26093/cds/vizier/dv/hekdeiCDSSotnikova Yu.V.Mufakharov T.V.Majorova E.K.Mingaliev M.G.,Udovitskiy R.Yu.Bursov N.N.Semenova T.A.2026-03-17T20:07:48Z2020-01-21T10:22:15ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiradio-galaxiesradio-continuum-emissionGigahertz-Peaked spectrum (GPS) sources are compact active galactic nuclei, presumably young precursors of bright radio sources. The study of GPS radio properties provides information about the features of synchrotron radiation in extragalactic sources. Also in applied research, GPS sources are useful as compact stationary radio sources in the sky for astrometric purposes. This paper presents the results of a multifrequency GPS study based on quasi-simultaneous measurements with the RATAN-600 radio telescope during the 2006-2017 period. A catalog of GPS spectral flux densities at six frequencies - 1.1, 2.3, 4.8, 7.7/8.2, 11.2, and 21.7GHz - is obtained. In addition, for the analysis of radio spectra, data from low-frequency surveysGLEAM(GaLactic and Extragalactic AllskyMurchisonwidefield array survey) and TGSS (Tata institute for fundamental research GMRT Sky Survey) and high-frequency measurements from Planck survey are used. A total number of 164 GPS and candidates have been identified (17 of them are new discoveries), which makes up a small fraction of GPS in the initial sample of bright AGNs - about 2%. The physical properties and formation conditions of synchrotron radiation is found to be quite different in GPS of different AGNs types. The deficit of distant GPS (z>2) with low maximum frequencies (less than 1GHz) has been confirmed. The existing "size-peak frequency" anticorrelation is continuous. The continuum radio spectra are found to become statistically steeper with increasing redshift.2019AstBu..74..348Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/AstBu/74.348CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/544/A25 : GPS radio sources multifrequency study (Mingaliev+ 2012)J/other/AstBu/68.262 : Sample of 467 GPS candidates (Mingaliev+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/AstBu/74.348https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/AstBu/74.348http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/AstBu/74.348https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/AstBu/74.348https://vizier.iucaa.in/viz-bin/votable?-source=J/other/AstBu/74.348http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/AstBu/74.348GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/AstBu/74.348/table1 (Parameters of 164 objects)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/AstBu/74.348/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/other/AstBu/74.348/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/AstBu/74.348/table1?GETtext/xml+votable180.050000true0.83062521.49569440.0055555555555555566/27 392 421 448 574 839 1225 1233 1621 2429 2600 2631 2794 2854 2873 2978 3357 4114 4194 4696 5610 5767 6067 6377 6381 6529 6576 6656 6751 6755 6853 7119 7129 7195 7857 8199 8220 8341 8345 8365 8718 8912 9347 9394 9434 9720 10321 10463 10654 10795 10798 10862 11024 11106 11116 11126 11164 11669 11686 11693 12580 12621 13153 13287 13341 13585 13625 13836 14173 14350 14874 14879 15196 15341 15777 15936 16606 16952 16964 16988 17542 17965 18084 18164 18259 18271 18718 19060 19101 19142 19166 19177 19367 19483 19537 19918 20228 20358 20408 21012 21163 21170 21508 21713 21790 21924 22375 22554 22943 22965 22971 24357 24571 24756 24809 24828 24998 25093 25659 25920 26286 26834 27220 27521 28061 28341 30171 30344 31229 31248 31332 31529 31909 32247 32362 32571 32582 32764 34646 35741 36408 39601 39664 39672 39733 39773 40060 40131 42696 44078 44147 44307 44361 44502 44534 44699 44907 46577 47064 47941 48542 48610 48846 489658.613890125444795e-25 1.437857147309737e-23https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/AstBu/74.348?format=asciiRadiodefaultJ/other/AstBu/74.348/table1Parameters of 164 objectsSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNVSSNVSS Name (HHMMSS+DDMMSS J2000)meta.id;meta.maincharn_NVSS[*] Note on NVSS (1)meta.notecharSpTypeSpectral type: GPS, HFP, CSS or candidate 'g'src.spTypecharOptTypeOptical type (2)src.classcharz? Redshift (2)src.redshiftfloatnullablenuObsSynchrotron peak frequency in the observer's frameGHzem.freqfloatnuInt? Synchrotron peak frequency in the reference frameGHzem.freqfloatnullablealpha-below? Spectral index in optical thick regionspect.indexfloatnullablee_alpha-below? rms uncertainty on alpha-belowstat.errorfloatnullablealpha-aboveSpectral index in optical thin regionspect.indexfloate_alpha-aboverms uncertainty on alpha-abovestat.errorfloatalpha-353-857? Spectral index in the range 353-857GHzspect.indexfloatnullablee_alpha-353-857? rms uncertainty on alpha-353-857stat.errorfloatnullableFWHMFull width at half maximum of the radio spectrumspect.line.widthfloatVar-11.2? Variability index at 11.2GHzmeta.code;meta.code.multipfloatnullableMorphRadio morphology from the literaturemeta.notecharAGNtypeAGN type (3)src.classchar_RAPositions from SImbad or NVSS name (right ascension part)degpos.eq.ra;meta.main_DEPositions from SImbad or NVSS name (declination part)degpos.eq.dec;meta.mainJ/other/AstBu/74.348/table2Flux densitiesJDJulian datetime.epochintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNVSSNVSS name (HHMMSS+DDMMSS, J2000)meta.id;meta.maincharS21.7? Flux density at 21.7GHzJyphot.flux.density;em.radio.12-30GHzfloatnullablee_S21.7? rms uncertainty on flux density at 21.7GHzJystat.errorfloatnullableS11.2? Flux density at 11.2GHzJyphot.flux.density;em.radio.6-12GHzfloatnullablee_S11.2? rms uncertainty on flux density at 11.2GHzJystat.errorfloatnullableS7.7/8.2? Flux density at 7.7 or 8.2GHzJyphot.flux.density;em.radio.6-12GHzfloatnullablee_S7.7/8.2? rms uncertainty on flux density at 7.7 or 8.2GHzJystat.errorfloatnullableS4.8? Flux density at 4.8GHzJyphot.flux.density;em.radio.3-6GHzfloatnullablee_S4.8? rms uncertainty on flux density at 4.8 GHzJystat.errorfloatnullableS2.3? Flux density at 2.3GHzJyphot.flux.density;em.radio.1500-3000MHzfloatnullablee_S2.3? rms uncertainty on flux density at 2.3 GHzJystat.errorfloatnullableS1/1.3? Flux density at 1 or 1.3GHzJyphot.flux.density;em.radio.750-1500MHzfloatnullablee_S1/1.3? rms uncertainty on flux density at 1 or 1.3GHzJystat.errorfloatnullable