J/MNRAS/342/575ivo://CDS.VizieR/J/MNRAS/342/575doi:10.26093/cds/vizier.73420575CDSCiliegi P.Vignali C.Comastri A.Fiore F.La Franca F.Perola G.C.2024-06-28T20:17:22Z2006-03-10T22:29:06ZCDS support team

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

cds-question@unistra.frquasarsradio-sourcesx-ray-sourcesWe present results of a complete radio follow-up obtained with the VLA and ATCA radio telescopes down to a 6-cm flux limit of about 0.3 mJy (3{sigma}) of all the 147 X-ray sources detected in the BeppoSAX HELLAS survey. We found 53 X-ray/radio likely associations, corresponding to about one-third of the X-ray sample. Using the two-point spectral index {alpha}_ro_=0.35 we divided all the HELLAS X-ray sources into radio-quiet and radio-loud. We have 26 sources classified as radio-loud objects, corresponding to 18 per cent of the HELLAS sample. In agreement with previous results, the identified radio-loud sources are associated mainly with Type 1 active galactic nuclei (AGNs) with L_5-10kev_>~10^44^erg/s, while all the identified Type 2 AGNs and emission-line galaxies are radio-quiet objects with L_5-10kev_<~10^44^erg/s.2003MNRAS.342..575Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/342/575CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/327/771 : BeppoSAX HELLAS survey. II. (Fiore+, 2001)J/A+A/370/900 : BeppoSAX HELLAS survey. IV (Vignali+, 2001)J/ApJ/570/100 : BeppoSAX HELLAS survey. V. (La Franca+, 2002)J/A+A/409/79 : HELLAS2XMM survey. IV. (Fiore+, 2003)http://argos.mporzio.astro.it/hellas/ :https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/342/575https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/342/575http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/342/575https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/342/575https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/342/575http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/342/575GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/342/575/table1 (X-ray, optical and radio properties of the HELLAS sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/342/575/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/342/575/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/342/575/table1?GETtext/xml+votable180.050000true6.652083-19.7369440.005555555555555556BeppoSAX6/5 4095 4992-4993 5367 5437 6020-6021 6069 6112 6141 7550 7642 7664 7896 8066 8072 8103 8603 8845 8922-8923 9613 10151 10198-10199 10977 10979-10980 11029 11218 11540 11614 11683 11856 12025 13314 13411 13414 15090 15334-15335 15339 16383 16655 16666 16794 17754 19281-19283 19395 19617 19619 20071 20286 22976 23322 23413 25245 25742 25790 25906 26022 26028 26131 26148 26292 28471 28517 31155 31158 31509 33378 33635 33812 33814 34023 34032 34104 34531 34534 34881 35690-35691 37513 39477 39479 40432 41209 43828 43876-43877 45741 46130 46399 46987 48614 49048https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/342/575?format=asciiX-rayRadiodefaultJ/MNRAS/342/575/table1X-ray, optical and radio properties of the HELLAS samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRA2000BepposSAX right ascension (2000)pos.eq.ra;meta.mainDE2000BepposSAX declination (2000)pos.eq.dec;meta.mainOffXOffset in the BeppoSAX fieldarcminfloatFX5-10keV X-ray flux (in 10^-13^erg/cm^2^/s)1e-16W.m**-2floatl_RmagLimit flag on RmagcharRmag? R-band magnitude, from La Franca et al., Cat. <J/ApJ/570/100>, if not otherwise specifiedmagfloatnullabler_Rmag[alu] Reference for Rmag (1)charSpId[0/6]? Spectroscopic identification (2)intnullabler_SpId[l] l: SpId from Lehmann et al., 2000A&A...354...35Lcharz? Redshift from La Franca et al., Cat. <J/ApJ/570/100>floatnullablen_z[l] l: Redshift from Lehmann et al., 2000A&A...354...35Lcharl_F3.6GHzLimit flag on F3.6GHzcharF3.6GHz? Flux density at 3.6GHzmJyfloatnullablee_F3.6GHz? rms uncertainty on F3.6GHzmJyfloatnullablen_F3.6GHz[n] Note on F3.6GHzcharl_F5GHzLimit flag on F5GHzcharF5GHz? Flux density at 5GHz (6cm) from NVSS, version 2.17mJyfloatnullablee_F5GHz? rms uncertainty on F5GHzmJyfloatnullablen_F5GHz[n] n: not from NVSS, version 2.17charl_F1.4GHzLimit flag on F1.4GHzcharF1.4GHz? Flux density at 1.4GHz (20cm), from NVSS, version 2.17mJyfloatnullablee_F1.4GHz? rms uncertainty on F1.4GHzmJyfloatnullablen_F1.4GHz[n] n: not from NVSS, version 2.17charl_Sp-IndexLimit flag on Sp-IndexcharSp-Index? Radio spectral index calculated using the available frequencies (mainly 6 and 20cm)floatnullableRAR? Radio right ascension (2000)nullableDER? Radio declination (2000)nullableDXR? Distance between X-ray and radio positionsarcsecfloatnullablePXR? Probability of a random associationfloatnullableDRO? Distance between radio and optical positionsarcsecfloatnullablePRO? Probability of a random associationfloatnullablel_alphaRO? Limit flag on alphaROcharalphaRO? Two-point radio-to-optical spectral index (3)floatnullablel_alphaOX? Limit flag on alphaOXcharalphaOX? Two-point optical-to-X-ray spectral index (3)floatnullable