J/ApJ/768/37ivo://CDS.VizieR/J/ApJ/768/37doi:10.26093/cds/vizier.17680037CDSCondon J.J.Kellermann K.I.Kimball A.E.Ivezic Z.Perley R.A.2017-06-26T11:49:31Z2014-12-18T09:25:25ZCDS support team

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

cds-question@unistra.frabsolute-magnitudequasarsradio-continuum-emissionWe used the 1.4GHz NVSS to study radio sources in two color-selected QSO samples: a volume-limited sample of 1313 QSOs defined by M_i_<-23 in the redshift range 0.2<z<0.45 and a magnitude-limited sample of 2471 QSOs with m_r_<=18.5 and 1.8<z<2.5. About 10% were detected above the 2.4mJy NVSS catalog limit and are powered primarily by active galactic nuclei (AGNs). The space density of the low-redshift QSOs evolves as {rho}{prop.to}(1+z)^6^. In both redshift ranges the flux-density distributions and luminosity functions of QSOs stronger than 2.4mJy are power laws, with no features to suggest more than one kind of radio source. Extrapolating the power laws to lower luminosities predicts the remaining QSOs should be extremely radio quiet, but they are not. Most were detected statistically on the NVSS images with median peak flux densities S_p_(mJy/beam){approx}0.3 and 0.05 in the low- and high-redshift samples, corresponding to spectral luminosities log [L_1.4GHz_(W/Hz)]{approx}22.7 and 24.1, respectively. We suggest that the faint radio sources are powered by star formation at rates dM/dt~20M_{sun}_/yr in the moderate luminosity (median <M_i_>{approx}-23.4) low-redshift QSOs and dM/dt~500M_{sun}_/yr in the very luminous (<M_i_>{approx}-27.5) high-redshift QSOs. Such luminous starbursts [<log(L_IR_/L_{sun}_)>~11.2 and 12.6, respectively] are consistent with "quasar mode" accretion in which cold gas flows fuel both AGN and starburst.2013ApJ...768...37Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/768/37CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/90 : The FIRST Survey Catalog, Version 12Feb16 (Becker+ 2012)VII/260 : The SDSS-DR7 quasar catalog (Schneider+, 2010)VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)J/AJ/141/182 : Radio and optical properties of QSOs (Kimball+, 2011)J/MNRAS/383/1513 : 2MASS, SDSS and FIRST fluxes of QSOs (Labita+, 2008)J/AJ/128/1002 : SDSS candidate type II quasars. II (Zakamska+, 2004)J/AJ/127/1959 : 1.4GHz emission of KISS emission-line gal. (Van Duyne+ 2004)J/AJ/125/2411 : SIRTF First-Look Survey (Condon+, 2003)J/AJ/108/1163 : Radio structure of Quasars (Kellermann+ 1994)J/MNRAS/263/425 : Low-z BQS Quasars (Miller+, 1993)J/ApJ/378/65 : 8.4GHz observations of compact starbursts (Condon+ 1991)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/768/37https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/768/37http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/768/37https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/768/37https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/768/37http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/768/37GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/768/37/nvssqsos (NVSS-detected QSOs in redsfhit range 0.2<z<0.45 or 1.8<z<2.5)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/768/37/nvssqsos?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/768/37/nvssqsos?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/768/37/nvssqsos?GETtext/xml+votable180.050000true118.515041748.24113890.0055555555555555566/4118 4122 4168 4252 4291 4309 4322 4333 4379 4463 4475 4492 4500 4536 4546 4552 4563 4576 4604 4693 4702 4888 4933 5087 5128 5147 5167 5212 5213 5237 5248 5301 5303 5309 5335 5336 5354 5359 5384 5442 5448 5485 5486 5490 5505 5574 5588 5597 5610 5648 5657 5708 5764 5795 5814 5831 5846 5848 5854 5855 5873 5876 5953 5995 6016 6033 6038 6064 6143 6416 6471 6473 6494 6501 6514 6515 6623 6633 6640 6643 6647 7223 7273 7280 7316 7318 7351 7362 7381 7397 7422 7449 7488 7495 7511 7554 7568 7700 8199 8207 8255 8299 8323 8385 8425 8427 8435 8451 8452 8468 8484 8522 8523 8543 8555 8616 8631 8641 8642 8652 8677 8716 8767 8769 8780 8801 8841 8848 8850 8863 8891 8897 8903 8918 8927 8937 8941 8965 8977 9016 9022 9029 9049 9067 9170 9181 9306 9311 9381 9422 9440 9459 9460 9467 9483 9512 9515 9614 9790 9855 9861 9895 9923 9959 9978 10181 10217 10221 10254 10318 10341 10362 10393 10417 10421 10446 10500 10501 10510 10545 10550 10596 10634 10665 10716 10735 10774 10777 10818 10828 10889 10893 10898 10945 10969 10976 10999 11004 11024 11030 11072 11203 11226 11240 11290 11297 11334 11339 11388 11408 11413 11462 11490 11500 11502 11589 11779 11817 11822 11828 11839 11845 11912 11922 25586 25591 25848 25853 25983 26000 26007 26019 26196 26206 26254 26260 26297 26298 26310 26322 26325 26375 26396 26414 26424 26426 26454 26461 26579 26597 26614 26621 26946 26959 26966 26989 27039 27065 27297 27301 27322 27331 27337 27467 27473 27486 27560 27580 27610 27614 27688 27717 27753 27758 27766 27792 27805 27806 27846 27859 27878 27879 27993 27994 28041 28043 28051 28052 28059 28070 28083 28086 28113 28135 28138 28140 28161 28167 28173 28213 28223 28234 28239 28244 28248 28270 28282 28351 28359 28364 28378 28383 28419 28519 28527 28549 28552 28571 28587 28589 28629 28631 28657 28666 31291 31315 31405 31414 31427 31430 31439 31463 31620 31621 31623 31627 31630 31634 31636 31652 31661 31691 31730 32435 32497 450479.276497240453405e-25 9.276497240453405e-25https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/768/37?format=asciiRadiodefaultJ/ApJ/768/37/nvssqsosNVSS-detected QSOs in redsfhit range 0.2<z<0.45 or 1.8<z<2.5SimbadNameSimbad column added by the CDSmeta.idcharlogL1.4[23.6/28.8] Log 1.4GHz luminositylog(W.Hz**-1)phys.luminosity;em.radio.750-1500MHzfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000SDSS Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000SDSS Degree of Declination (J2000)pos.eq.dec;meta.mainzSDSS-DR7 Redshiftsrc.redshiftfloatiMag[-30/-23] Absolute i band magnitudemagphys.magAbsfloatS1.4[2.4/3259] NVSS flux density at 1.4 GHzmJyphot.flux.density;em.radio.750-1500MHzfloatFIRSTCross-match within 10" with the FIRST catalog (VIII/90)meta.ref.urlintnullableNVSSCross-match within 45" with the NVSS catalog (VIII/65)meta.ref.urlintnullableDR7Display the SDSS-DR7 quasar (VII/260) and photometric (II/294) catalogsmeta.ref.urlcharSloanDisplay the online SDSS data for this quasarmeta.ref.urlcharNEDSimbad column added by the CDSmeta.ref.urlchar