J/other/AstBu/79ivo://CDS.VizieR/J/other/AstBu/79.548doi:10.26093/cds/vizier/dv/hjkfeiCDSSotnikova Yu.V.Mikhailov A.G.Volvach A.E.Kudryavtsev D.O.,Mufakharov T.V.Vlasyuk V.V.Khabibullina M.L.Kudryashova A.A.,Mingaliev M.G.Erkenov A.K.Kovalev Yu.A.Kovalev Y.Y.Kharinov M.A.,Semenova T.A.Udovitskiy R.Yu.Bursov N.N.Trushkin S.A.,Spiridonova O.I.Popkov A.V.Tsybulev P.G.Volvach L.N.Nizhelsky N.A.,Zhekanis G.V.Iuzhanina K.V.2026-03-17T20:08:04Z2025-02-03T12:26:56ZCDS support team

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

cds-question@unistra.frquasarsactive-galactic-nucleiphotometryradio-continuum-emissionvisible-astronomyWe present a study of the radio and optical properties of the high-frequency peaker (HFP) blazar PKS 1614+051 at z=3.21 based on the data covering the time period of 1997-2024. The radio data are represented by the almost instantaneous 1-22GHz measurements from the SAO RAS RATAN-600 radio telescope, the 5 and 8GHz data from the IAA RAS RT-32 telescopes, and the 37GHz data from the RT-22 telescope of CrAO RAS. The optical measurements in the R band were collected with the SAO RAS 1-m Zeiss-1000 and 0.5-m AS-500/2 telescopes, and the ZTF archive data. We have found low overall variability indices (0.1-0.2) and a median spectral peak at 4.6GHz, which is stable during the long-term period of monitoring. An analysis of the radio light curves reveals significant time delays (0.6 to 6.4 yrs) between the radio frequencies along with variability timescales ranging from 0.2 to 1.8 yrs in the source's rest frame, which is similar to the blazars at lower redshifts. Spectral modeling suggests the presence of both synchrotron self-absorption (SSA) and free-free absorption (FFA) processes. Based on the SSA model, we provide estimates of the magnetic field strength which peaks at approximately 100mG. A spectroscopic study with the BTA SCORPIO-1 spectrograph has found evidence of the regular motion of a neutral hydrogen envelope around the blazar center, which confirms the presence of enough gaseous matter to form an external FFA screen. The results highlight the importance of multi-wavelength and long-term monitoring to understand the physical mechanisms driving the variability in high-redshift blazars.2024AstBu..79..546Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/AstBu/79.548CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/544/A25 : GPS radio sources multifrequency studyJ/other/AstBu/74.348 : 164 GHz-peaked spectrum sources (Sotnikova+, 2019)J/MNRAS/508/2798 : Sample of 102 distant quasars (Sotnikova+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/AstBu/79.548https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/AstBu/79.548http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/AstBu/79.548https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/AstBu/79.548https://vizier.iucaa.in/viz-bin/votable?-source=J/other/AstBu/79.548http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/AstBu/79.548GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap6.62606957030801e-25 2.4516457410139638e-23OpticalRadiodefaultJ/other/AstBu/79.548/table4PKS 1614+051 flux densities at 1-22GHze_S1? Mean error of flux density at 1GHzJystat.errorfloatnullableInstObserving telescope (RATAN-600 or RT-32)meta.id;instrcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateObserving date in a format YYYY.MM.DDtime.epochnullablen_Date[*] Note on Date (1)meta.notecharYearObserving date in a format YYYY.YYyrtime.epochfloatS22? Flux density at 22GHzJyphot.flux.density;em.radio.12-30GHzfloatnullablee_S22? Mean error of flux density at 22GHzJystat.errorfloatnullableS11? Flux density at 11GHzJyphot.flux.density;em.radio.6-12GHzfloatnullablee_S11? Mean error of flux density at 11GHzJystat.errorfloatnullableS8? Flux density at 8GHzJyphot.flux.density;em.radio.6-12GHzfloatnullablee_S8? Mean error of flux density at 8GHzJystat.errorfloatnullableS5? Flux density at 5GHzJyphot.flux.density;em.radio.3-6GHzfloatnullablee_S5? Mean error of flux density at 5GHzJystat.errorfloatnullableS2? Flux density at 2GHzJyphot.flux.density;em.radio.1500-3000MHzfloatnullablee_S2? Mean error of flux density at 2GHzJystat.errorfloatnullableS1? Flux density at 1GHzJyphot.flux.density;em.radio.750-1500MHzfloatnullableJ/other/AstBu/79.548/table5PKS 1614+051 flux densities at 5GHzrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateObserving date in a format YYYY.MM.DDtime.epochnullableYearObserving date in a format YYYY.YYyrtime.epochfloatS5Flux density at 5GHzJyphot.flux.density;em.radio.3-6GHzfloate_S5Measurement error of flux density at 5GHzJystat.errorfloatJ/other/AstBu/79.548/table6PKS 1614+051 flux densities at 37GHzrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateObserving date in a format YYYY.MM.DDtime.epochnullableYearObserving date in a format YYYY.YYyrtime.epochfloatS37Flux density at 37GHzJyphot.flux.density;em.mm.30-50GHzfloate_S37Measurement error of flux density at 37GHzJystat.errorfloat