J/MNRAS/408/2261ivo://CDS.VizieR/J/MNRAS/408/2261doi:10.26093/cds/vizier.74082261CDSKunert-Bajraszewska M.Gawronski M.P.Labiano A.Siemiginowska A.2024-07-12T20:14:45Z2013-09-25T16:02:14ZCDS support team

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

cds-question@unistra.frradio-sourcesactive-galactic-nucleiquasarsWe present a new sample of compact steep spectrum (CSS) sources with radio luminosity below 10^26^W/Hz at 1.4GHz; these are called low-luminosity compact (LLC) objects. The sources have been selected from the Faint Images of the Radio Sky at Twenty-cm (FIRST) survey and observed with the multi-element radio linked interferometer network (MERLIN) at the L and C bands. The main criterion used for selection was the luminosity of the objects, and approximately one-third of the CSS sources from the new sample have a value of radio luminosity comparable to Fanaroff-Riley type 1 sources (FR Is). About 80 per cent of the sources have been resolved and about 30 per cent have weak extended emission and disturbed structures when compared with the observations of higher-luminosity CSS sources. We have studied the correlation between radio power and linear size, and the redshift with a larger sample that also included published samples of compact objects and large-scale FR IIs and FR Is.2010MNRAS.408.2261Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/408/2261CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/40 : GB6 catalog of radio sources (Gregory+ 1996)VIII/42 : Texas Survey of radio sources at 365MHz (Douglas+ 1996)VIII/90 : The FIRST Survey Catalog, Version 12Feb16 (Becker+ 2012)J/A+A/369/380 : CSS/GPS radio sources VLA observations (Fanti+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/408/2261https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/408/2261http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/408/2261https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/408/2261https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/408/2261http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/408/2261GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/408/2261/table1 (Basic parameters of the 44 target sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/408/2261/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/408/2261/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/408/2261/table1?GETtext/xml+votable180.050000true7.139250.91972220.005555555555555556Cone search capability for table J/MNRAS/408/2261/tablea1 (Combined CSS sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/408/2261/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/408/2261/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/408/2261/tablea1?GETtext/xml+votable180.050000true0.2212540.9005560.0055555555555555566/1023 2300 2302 2404 2410 2412 2442 2446 2466 2482 2610 2613 2619 2622 2644 2648 2709 2753 2755 3086 4104 4106 4121 4167 4216 4394 4866 4926 4977 5039 5066 5119 5214 5225 5282 5332 5369 5372 5392 5411 5442-5443 5466 5469 5479 5497 5501 5507 5511 5548 5575 5585 5647 5701 5706 5720 5722 5727 5737 5765 5783 5800 5893 5940 6230 6244 6258 6395 6448 6462 6465 6491 6496 6535 6543 6548 6557 6589 6596 6605 6628 6729 6916 6946 7197 9021 9052 9075 9121 9170 9279 9301 9327 9452-9453 9462 9473 9571 9607 9731 9785 9800 9816 9924 9934 9981 9983 10049 10086 10409 10531 10535 10579 10582 10584 10608 10634 10643 10664 10673 10680 10748 10760 10773 10800 10815 10832 10869 10888 10894-10895 10902 10911 10914 10928 10939 11018 11264 11436 13626 13654 13667-13668 13686 13713 13750 13800 18075 20471 20479 21855 22012 26075 26404 27360 27435 27626 27691 28499 28577 28602 28663 28668 315259.276497240453405e-25 3.313034785154005e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/408/2261?format=asciiRadiodefaultJ/MNRAS/408/2261/table1Basic parameters of the 44 target sourceszRedshiftsrc.redshiftfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceSource name (HHMM+DDd, B1950)meta.id;meta.maincharprimaryNcNumber of principal components (in table2)meta.numberintnullableRAJ2000FIRST Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000FIRST Declination (J2000)pos.eq.dec;meta.mainIDOptical identification (1)meta.idcharf_z[bcd] Uncertain redshift (2)meta.codecharS1.4FIRST total flux density at 1.4GHzJyphot.flux.density;em.radio.750-1500MHzfloatlogL1.4Radio luminosity at 1.4GHzlog(W.H**-1)phot.flux.density;em.radio.750-1500MHzfloatS4.85GB6 Total flux density at 4.85GHzJyphot.flux.density;em.radio.3-6GHzfloatlogL4.85Radio luminosity at 4.85GHzlog(W.H**-1)phot.flux.density;em.radio.3-6GHzfloatalphaSpectral index {alpha} (3)spect.indexfloatLLSLLS Largest linear size in kpc/h units (4)kpcphys.size.diameterfloatTypeRadio morphology (5)meta.code;src.morphcharf_Type[ae] Uncertain type (2)meta.codecharSEDPlot the spectrum with SPECFIND (Vollmer et al. 2009, Cat. VIII/85)meta.ref.urlcharFIRSTDetails from FIRST in a radius of 10''meta.ref.urlcharSimbadNameSimbad column added by the CDSmeta.idcharJ/MNRAS/408/2261/table2Flux densities of the principal components of the sources from the 1.6- and 5-GHz MERLIN imagesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceSource name (HHMM+DDd, B1950)meta.id;meta.maincharCompComponentmeta.code.multipcharn_Comp[b] b: sum of the visible componentsmeta.notecharS1.6? Flux density at 1.6GHzmJyphot.flux.density;em.radio.1500-3000MHzintnullablen_S1.6[a] a: the whole sourcemeta.notecharS5? Flux density at 5GHzmJyphot.flux.density;em.radio.3-6GHzfloatnullableJ/MNRAS/408/2261/tablea1Combined CSS sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRef[FM] Code for reference data (1)meta.codecharSourceSource name (HHMM+DDd, B1950)meta.id;meta.maincharRAJ2000FIRST Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000FIRST Declination (J2000)pos.eq.dec;meta.mainz? Redshift (2)src.redshiftfloatnullablen_z[ab] Note on redshift (3)meta.notecharS1.4FIRST total flux density at 1.4GHzJyphot.flux.density;em.radio.750-1500MHzfloatlogL1.4Radio luminosity at 1.4GHzlog(W.Hz**-1)phys.luminosity;em.radio.750-1500MHzfloatS4.85GB6 Total flux density at 4.85GHzJyphot.flux.density;em.radio.3-6GHzfloatlogL4.85Radio luminosity at 4.85GHzlog(W.Hz**-1)phys.luminosity;em.radio.3-6GHzfloatLASLargest angular sizearcsecphys.angSize;stat.maxfloatLLSLLS Largest linear size in kpc/h units (4)kpcphys.size.diameterfloatSimbadNameSimbad column added by the CDSmeta.idchar