J/ApJS/175/116ivo://CDS.VizieR/J/ApJS/175/116doi:10.26093/cds/vizier.21750116CDSLee I.Im M.Kim M.Kang E.Shim H.Richards G.T.Edge A.C.,Lee M.G.Park C.Park M.-G.2017-12-22T05:33:36Z2009-08-26T13:23:41ZCDS support team

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

cds-question@unistra.frquasarsspectroscopyredshiftedWe present results from the first phase of the Seoul National University Bright Quasar Survey in Optical (SNUQSO) as well as its basic observational setup. Previous and current large-area surveys have been successful in identifying many quasars, but they could have missed bright quasars due to their survey design. In order to help complete the census of bright quasars, we have performed spectroscopic observations of new bright quasar candidates selected from various methods based on optical colors, near-infrared colors, radio, and X-ray data. In 2005/2006, we observed 55 bright quasar candidates using the Bohyunsan Optical Echelle Spectrograph (BOES) on the 1.8m telescope at the Bohyunsan Optical Astronomy Observatory in Korea. We identify 14 quasars/Seyferts from our observation, including an optically bright quasar with i=14.98mag at z=0.092 (SDSS J003236.59-091026.2). Non-quasar/Seyfert objects are found to be mostly stars, among which there are five M-type stars and one cataclysmic variable. Our result shows that there still exist bright quasars to be discovered. However, at the same time, we conclude that finding new bright quasars in high Galactic latitude regions is very challenging and that the existing compilation of optically bright quasars is nearly complete in the northern hemisphere.2008ApJS..175..116Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/175/116CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/130/873 : Properties of BQS objects in the SDSS DR3 area (Jester+, 2005)J/A+A/427/387 : QORG catalog of radio/X-ray sources (Flesch+, 2004)J/A+A/358/77 : Hamburg/ESO survey for bright QSOs. III. (Wisotzki+, 2000)J/A+AS/112/347 : A Homogeneous Bright QSO Survey (Cristiani+, 1995)J/AJ/109/1498 : Large Bright Quasar Survey VI (LBQS) (Hewett+, 1995)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/175/116https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/175/116http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/175/116https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/175/116https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/175/116http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/175/116GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/175/116/table1 (Target summary)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/175/116/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/175/116/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/175/116/table1?GETtext/xml+votable180.050000true0.8159170.6716110.0055555555555555566/4156 4716 5369 5409 5538 5746 5953 6528 6566 6613 7285 8251 8396 8524 8788 8913 9013 9321 9955 10079 10226 10315 10574 11574 14857 17244 17664 17750 18006 18025 18091 18092 21999 22517 22773 22895 25922 26306 26435 26500 26963 27066 27247 27335 27480 27489 27732 27834 28082 31395 31468 31708 32458 324802.381800341673347e-19 2.821731604724377e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/175/116?format=asciiOpticaldefaultJ/ApJS/175/116/table1Target summaryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPSimbad column added by the CDSmeta.ref.urlcharNameName (JHHMMSS.ss+DDMMSS.s) (1)meta.id;meta.maincharprimaryf_Name[d] Note on QORG J043737.4-022928 (4)meta.codecharTypeType (3)src.classcharf_Type[fg] Flag on Type (4)meta.codecharMethCandidates selection methods (5)meta.notecharf_Meth[h] Flag for SDSS J145426.43+181951.8 (4)meta.codecharimag? SDSS (AB) i band magnitude (7)magphot.mag;em.opt.Ifloatnullablef_imag[e] means extended source (7)meta.codecharJ-K? 2MASS J-K color indexmagphot.color;em.IR.J;em.IR.KfloatnullableGroupSDSS quasar selection method belonging (8)meta.codecharComYes or No for objects also selected as a quasar candidate in SDSS DR3 or DR4meta.codecharSDSSSDSS page for this objectmeta.ref.urlchar_RAderived from Name (right ascension part)degpos.eq.ra;meta.main_DEderived from Name (declination part)degpos.eq.dec;meta.mainJ/ApJS/175/116/table3Properties of quasarsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (JHHMMSS.ss+DDMMSS.s) (1)meta.id;meta.maincharzRedshiftsrc.redshiftfloate_z? Error on redshiftstat.error;src.redshiftfloatnullableWHa? Full width at half-maximum in H{alpha}km/sspect.line.widthintnullablee_WHa? Error on FWHMHakm/sstat.errorintnullableWHb? Full width at half-maximum in H{beta}km/sspect.line.widthintnullablee_WHb? Error on FWHMHbkm/sstat.errorintnullableF(Ha)? Flux in H{alpha} band (10^-15^erg/s/cm2)aW.m**-2phot.flux;em.X-rayfloatnullablee_F(Ha)? Error on H{alpha} luminosity fluxaW.m**-2stat.errorfloatnullableF(Hb)? Flux in H{beta} bandaW.m**-2phot.flux;em.line.Hbeta;spect.linefloatnullablee_F(Hb)? Error on H{beta} luminosity fluxaW.m**-2stat.errorfloatnullableMBH? Mass of Black Holes1e+06solMassphys.massfloatnullableE_MBH? Positive error on BH mass1e+06solMassstat.error;stat.maxfloatnullablee_MBH? Negative error on BH mass1e+06solMassstat.errorfloatnullableCom[YN] Yes = also noted as quasar in SDSSmeta.codecharf_RadLimit flag on Radmeta.codecharRadRadio loudness (3)phot.flux;arith.ratiofloatgMAGAbsolute magnitude in SDSS g-bandmagphot.mag;em.opt.Bfloatf_gMAG[c] indicates B-band magnitudemeta.codechariMAG? Absolute magnitude in SDSS i-bandmagphot.mag;em.opt.Ifloatnullable